Automotive grade - TDK Product Center
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October 2017
Chip varistors Voltage Protection Devices
Automotive grade
AVR series AVRM, AVR-M series AVRM1608/AVR-M1608 AVRM2012/AVR-M2012
JIS 1608 [EIA 0603] JIS 2012 [EIA 0805]
AVRL series AVRL10 AVRL16
JIS 1005 [EIA 0402] JIS 1608 [EIA 0603]
AVRH series AVRH10
JIS 1005 [EIA 0402]
(2/17)
Voltage Protection Devices
REMINDERS FOR USING THESE PRODUCTS Before using these products, be sure to request the delivery specifications.
SAFETY REMINDERS Please pay sufficient attention to the warnings for safe designing when using this products.
REMINDERS Please pay careful attention to the precautions and follow safe designing practices when using these products. Please observe the following precautions in order to avoid problems with chip varistors such as characteristic degradation and element destruction Please store these products in an environment with a temperature of 5 to 40°C and humidity level of 20 to 70%RH, and use them within six months. Poor storage conditions may lead to the deterioration of the solderability of the edge electrodes, so please be careful to avoid contact with humidity, dew condensation, dust, toxic gas (hydrogen, hydrogen sulfide, sulfurous acid, chlorine, ammonia, etc.), direct sunlight, and so on. Please do not use products that have been dropped or detached when mounting. Please solder with the reflow soldering method, and not the flow (dip) soldering method. Please observe the following precautions to avoid problems with varistors such as characteristic degradation and element destruction, which ultimately lead to the generation of heat and smoke with the elements. Do not use in locations where the temperatures exceed the operating temperature range such as under direct sunlight or near sources of heat. Do not use in locations where there are high levels of humidity such as under direct exposure to weather and areas where steam is released. Do not use in locations such as dusty areas, high-saline environments, places where the atmosphere is contaminated with corrosive gas, etc. Avoid powerful vibrations, impact (such as by dropping), pressure, etc. that may lead to splitting in the products. Do not use with a voltage that exceeds the maximum allowable circuit voltage. When resin coating (including modular) a varistor, do not use a resin that will cause deterioration of the varistor. Be sure never to use resin that generates hydrogen as palladium is used for the inner electrode. Avoid attachment near combustible materials. Please contact our sales offices when considering the use of the products listed on this catalog for applications, whose performance and/or quality require a more stringent level of safety or reliability, or whose failure, malfunction or trouble could cause serious damage to society, person or property ('specific uses' such as automobiles, airplanes,medical instruments, nuclear devices, etc.) as well as when considering the use for applications that exceed the range and conditions of this catalog. Please also contact us when using these products for automotive applications. As range of catalog, conditions are transcended, or for damage that generated by was used in application specific, etc, accept no the responsibility, wish. Please take appropriate measures such as acquiring protective circuits and devices that meet the uses, applications, and conditions of the instruments and keeping backup circuits.
20171011 / vpd_automotive_varistors_avr_en.fm
(3/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
Overview of the AVR series CHARACTERISTICS OF CHIP VARISTOR Varistors are voltage dependent nonlinear resistive elements with a resistance that decreases rapidly when the voltage is over the constant value. Varistors become zener diode of 2 serial connection and equivalent, and does not have polarity.
CURRENT vs. VOLTAGE CHARACTERISTICS
EQUIVALENT CIRCUIT OF CHIP VARISTORS 2 Zener Diodes
A capacitance content
CHIP VARISTORS FEATURE FOR AUTOMOTIVE GRADE
Current(A)
10–1
Reliability characteristics evaluated based on AEC-Q200 condition. (except AVRL series) High ESD withstanding voltage Small-sized products are available 125°C, 150°C Supported
10–2 Zener diode /Vz:6.8V
Positive direction
10–3
Chip varistor /V1mA:12V
10–4 10–5 –18 –14
–10
–6
–2
2 –10–5
6
10
14
18
–10–4 –10–3
Negative direction
–10–2
Figure 1 internal structure of multilayer chip varistors
–10–1
①
Voltage(V)
THE EFFECT OF THE VARISTOR Without varistor A malfunction and failure of electronic equipment ESD, Surge voltage
Power line Signal line
IC ②
⑤
With Varistor Suppress transient voltage by inserting varistor in a circuit ESD, Surge voltage
Power line Signal line
IC
No. (1) (2) (3) (4) (5)
④
③
Name Semiconductor ceramic Internal electrode(Pd) Terminal electrode
Ag Ni Sn
Insert a varistor between a line and ground : Chip varistor
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(4/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
Overview of the AVR series COMMUNICATION STANDARD, CIRCUIT EXAMPLE AND COMMUNICATION STANDARD Motors
Type
Chip varistors
LIN/CXPI
Dimensions code JIS [EIA] 1005[0402] 1608[0603] 2012[0805]
Type
Connector
20 kbps N/A AVRM1608C270KT221M N/A
Chip varistors
Connector
CAN Transceiver
Connector
Varistor
1 Mbps AVRH10C270KT150NA8 AVR-M1608C270MTAAB N/A
MOST50
USB2.0
Varistor
2-8 Mbps AVRH10C270KT150NA8 AVR-M1608C270MTABB N/A
OABR (One-Pair Ethernet) 100Base-T1
CMF ETXP
CMF CAN Transceiver
ETXN
Varistor
CMF Varistor
Connector
10 Mbps AVRH10C270KT150NA8 AVR-M1608C270MTABB N/A
Varistor
HOST/ Device
D+
CMF BroadR -reach Phy
D-
ERXP
Connector
LPF
Varistor
ERXN
Varistor Varistor
1005[0402] 1608[0603] 2012[0805]
CMF
CAN Transceiver
Varistor
N/A AVR-M1608C270KT6AB AVR-M2012C390KT6AB
CAN/CAN-FD
CMF
Coil, Bead LIN/CXPI
Transceiver
FlexRay
Dimensions code JIS [EIA]
Classical CAN
Varistor
50 Mbps AVRH10C270KT150NA8 AVR-M1608C270MTAAB N/A
480 Mbps AVRL101A3R3FTA AVRL161A3R3FTA N/A
100Mbps AVRH10C101KT4R7FA8 N/A N/A
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(5/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
Overview of the AVR series PART NUMBER CONSTRUCTION
AVRM
1608
C
Series name
LxW dimensions
Structure code
390
K
T
271
N
Varistor voltage
Varistor voltage tolerance
Packaging style
(V)
(%)
Capacitance or internal special symbol (pF)
Capacitance tolerance (%)
(mm) AVRM series
1608
1.6×0.8
2012
2.0×1.2
C
General structure
390=39×100 220 270 390
AVR-M
1608
C
Series name
LxW dimensions (mm)
Structure code
AVR-M series
1.6×0.8
2012
2.0×1.2
Series name AVRL series L=Low cap
C
General structure
220 270 390
LxW dimensions (mm) 10 1.0×0.5 16 1.6×0.8
Maximum continuous voltage (Vdc) 1A 10
Series name
LxW dimensions
C Structure code
10 1.0×0.5
H=High Reliability
±20 ±30
B
Bulk
Varistor voltage
270=27×100 270 390 101
Packaging style
Company special symbol
K
±10
T
Taping
M N
±20 ±30
B
Bulk
F
K
K
27 39 100
Capacitance tolerance (pF) F ±1 G ±2
T
±10
220 270
Varistor voltage tolerance (%)
(pF) 3.3 6.8
Varistor voltage tolerance (%)
221 271
AAB
Capacitance 3R3 6R8
271=27×101
K
±10
M N
±20 ±30
T
A
Packaging style
Company special symbol
T B
Taping Bulk
150
N
A
8
ESD voltage Operating Capacitance Capacitance amount temperature Packaging style tolerance IEC61000-4-2 limit (°C) (pF) (kV) T
Taping
B
Bulk
150=15×100
N
±30%
150 500 4R7
F
±1pF
15 50 4.7
A
25
8
150
W
L
M N
3R3
(V) C
Taping
T
22 27 39
270
(mm) General structure
T
M
270=27×100
1A
10
AVRH series
Varistor voltage
10
AVRH
±10
270 (V)
1608
AVRL
22 27 39
K
T
Shape symbol(JIS) 1005 1608 2012
L 1.00±0.05 1.60±0.1 2.00±0.2
W 0.50±0.05 0.80±0.1 1.25±0.2
T 0.50±0.05 0.80±0.1 1.00±0.2
B 0.1min. 0.2min. 0.2min.
B
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(6/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
Overview of the AVR series OPERATING TEMPERATURE RANGE, PACKAGE QUANTITY, PRODUCT WEIGHT Temperature range Operating temperature (°C)
Type
Storage temperature (°C)
Package quantity
Individual weight
(pieces/reel)
（mg）
10,000
1.2
4,000
5
2,000
13
AVRM1005 AVR-M1005 –40 to +125 –40 to +125 AVRL10 AVRH10 –40 to +150 –40 to +150 AVRM1608 AVRL16 –40 to +125 –40 to +125 AVR-M1608 AVR-M2012 Operating temperature range includes self-temperature rise. The storage temperature range is for after the assembly.
TERMINOLOGY Item Varistor voltage (Breakdown voltage)
Unit V1mA (V)
Maximum continuous voltage
Vdc (V)
Clamping voltage
Vcl (V)
Maximum energy
E (Joule)
Maximum peak current
Ip (A)
Capacitance
C (pF)
1
Chip varistor-terminal voltage when DC1mA was flowed DC voltage that is continuously applied between chip varistor terminals Terminal chip varistors leakage current-value: 50µA max Voltage appearing across the varistor when a pulse current (8/20µs1) of specified peak value is applied. Voltage between terminal chip varistors of the Specified peak current value of the impulse current(8/ 20µs1) is applied When applied specified peak impulse current-value current(10/1000µs2) once, maximum energy that electrical property of chip varistors be not deteriorated When applied impulse current(8/20µs1) once, maximum current that electrical property of chip varistors be not deteriorated Oscillator frequency 1kHz or 1MHz, Capacitance between chip varistor-terminal in oscillator voltage 1Vrms
2
8/20µs test waveform 100% 90%
10/1000µs test waveform
100% 90%
Current
Current
Description
50%
8µs
50%
10µs 20µs
1000µs Time
Time
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(7/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
AVRseries (Automotive grade) Product characteristics list PRODUCT CHARACTERISTICS LIST Item AVRL101A3R3FTA AVRL101A6R8GTA AVRL161A3R3FTA AVRL161A6R8GTA AVRH10C270KT150NA8 AVRH10C390KT500NA8 AVRH10C101KT4R7FA8 AVR-M1608C220KT2AB AVR-M1608C220KT6AB AVR-M1608C270MTABB AVR-M1608C270MTAAB AVR-M1608C270KTACB AVRM1608C270KT800M AVR-M1608C270KT2AB AVRM1608C270KT221M AVR-M1608C270KT6AB AVRM1608C390KT271N AVR-M2012C220KT6AB AVR-M2012C390KT6AB
V1mA
C1kHz C1MHz
Vdc
(V) 27(21.6 to 32.4) 27(21.6 to 32.4) 27(21.6 to 32.4) 27(21.6 to 32.4) 27(24.0 to 30.0) 39(35.0 to 43.0) 100(90 to 110) 22(19.8 to 24.2) 22(19.8 to 24.2) 27(21.6 to 32.4) 27(21.6 to 32.4) 27(24.0 to 30.0) 27(24.0 to 30.0) 27(24.0 to 30.0) 27(24.0 to 30.0) 27(24.0 to 30.0) 39(35.0 to 43.0) 22(19.8 to 24.2) 39(35.0 to 43.0)
(pF) 3.3(2.3 to 4.3) 6.8(4.8 to 8.8) 3.3(2.3 to 4.3) 6.8(4.8 to 8.8) 15(10.5 to 19.5) 50(35 to 65) 4.7(3.7 to 5.7) 210 560 15 30 60 80(64 to 96) 160 220(176 to 264) 430 270(189 to 351) 800 430
DC (V) 10 10 10 10 19 28 70 16 16 17 17 19 19 19 19 19 28 16 28
Clamping voltage 8/20µs Pulse Vcl (V) 62(0.5A) 58(1A) 62(0.5A) 58(1A) 52(2A) 72(2A) 190(1A) 37(2A) 34(2A) 52(2A) 52(2A) 54(2A) 53(2A) 42(2A) 52(2A) 42(2A) 69(2A) 38(5A) 62(5A)
Maximum Maximum energy peak current 10/1000µs Pulse 8/20µs Pulse E (J) Ip (A) 0.01 0.5 0.01 1 0.01 0.5 0.01 1 0.02 2 0.02 15 0.03 1 0.03 10 0.1 30 0.05 2 0.05 2 0.05 10 0.02 28 0.1 20 0.1 40 0.1 48 0.1 78 0.3 100 0.3 100
IEC61000-4-2 (Contact) 150pF/330 8kV 8kV 8kV 8kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(8/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
AVRL, AVRH series: JIS1005 [EIA0402] Electrical characteristics ELECTRICAL CHARACTERISTICS CURRENT vs. VOLTAGE CHARACTERISTICS 100
1000000
10–1
100000 V1mA=39V
V1mA=27V
10000 Impeadance(Ω)
10–2 Current(A)
IMPEDANCE vs. FREQUENCY CHARACTERISTICS
10–3
10–4
1000
100
10–5
10
10–6
1
10–7
0
10
20 30 Voltage(V)
40
TRANSMISSION CHARACTERISTICS
1
10
100 Frequency(MHz)
1000
10000
CAPACITANCE vs. FREQUENCY CHARACTERISTICS
10
10000
6.8pF 0
0.1
50
15pF 6.8pF 3.3pF
3.3pF
1000
15pF
Capacitance(pF)
Insertion loss(dB)
–10
–20
–30
100 15pF 6.8pF 10
3.3pF
–40
1 –50
–60
1
10
100 Frequency(MHz)
1000
10000
0.1
1
10
100 Frequency(MHz)
1000
10000
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(9/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
AVRL, AVRM, AVR-M series: JIS1608 [EIA0603] Electrical characteristics ELECTRICAL CHARACTERISTICS CURRENT vs. VOLTAGE CHARACTERISTICS
IMPEDANCE vs. FREQUENCY CHARACTERISTICS
100
1000000
10–1
100000 V1mA=22V
V1mA=27V
V1mA=39V
10000 Impeadance(Ω)
Current(A)
10–2
10–3
10–4
1000
100 560pF
10–5
10
10–6
1
10–7
0
10
20 30 Voltage(V)
40
0.1
50
TRANSMISSION CHARACTERISTICS
60pF 30pF 15pF 6.8pF 3.3pF
430pF 220pF 160pF
1
10
100 Frequency(MHz)
10000
CAPACITANCE vs. FREQUENCY CHARACTERISTICS
10
10000 6.8pF 3.3pF
430pF
0
560pF
1000
–20
430pF
15pF
220pF
–30
Capacitance(pF)
560pF
–10
Insertion loss(dB)
1000
160pF
30pF 60pF
220pF 160pF 60pF
100
30pF 15pF 6.8pF
10 3.3pF
–40
1 –50
–60
1
10
100 Frequency(MHz)
1000
10000
0.1
1
10
100 Frequency(MHz)
1000
10000
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(10/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
AVR-M series: JIS2012 [EIA0805] Electrical characteristics ELECTRICAL CHARACTERISTICS CURRENT vs. VOLTAGE CHARACTERISTICS
IMPEDANCE vs. FREQUENCY CHARACTERISTICS 1000
100
10–1 V1mA=22V
100
V1mA=39V
Impeadance(Ω)
Current(A)
10–2
10–3
10–4
10–5
800pF 10
430pF
1
10–6
10–7
0
10
20 30 Voltage(V)
40
0.1
50
TRANSMISSION CHARACTERISTICS
1
10
100 Frequency(MHz)
1000
10000
CAPACITANCE vs. FREQUENCY CHARACTERISTICS
10
10000
0 800pF
430pF
Capacitance(pF)
Insertion loss(dB)
–10
–20
800pF –30
430pF
1000
–40
–50
–60
1
10
100 Frequency(MHz)
1000
10000
100
1
10
100 Frequency(MHz)
1000
10000
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(11/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
AVR series Electrostatic absorption characteristics DISCHARGE VOLTAGE WAVEFORM (EXAMPLE) 1800 1600 1400 1200 1000 800 600 400 200 0 –200 –50
WAVEFORM AT VARISTOR INSTALLATION
Without Varistor
Voltage(V)
Voltage(V)
WITHOUT VARISTOR, WAVEFORM AT VARISTOR INSTALLATION
AVRH10C270KT150NA8 AVR-M1608C270KT6AB AVR-M1608C220KT6AB
0
50
100
150 Time(ns)
200
250
300
180 160 140 120 100 80 60 40 20 0 –20 –50
AVRH10C270KT150NA8 AVR-M1608C270KT6AB
AVR-M1608C220KT6AB
0
50
100
150 Time(ns)
200
250
300
Test conditions 150pF/330 (IEC61000-4-2) Contact discharge, Charged voltage 8kV TEST CIRCUIT DIAGRAM Discharge gun
Test sample 60dB attenuator
ESD simulator
50Ω Oscilloscope
I/O impedance: 50Ω
Shield Discharge Point
SMA Connector
PCB ESD Simulator
Chip Varistor
Coaxial Cable
Attenuator(60dB) 50Ω
Oscilloscope 50Ω
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(12/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
AVR series Electrostatic discharge tests APPLIED VOLTAGE STEP(VOLTAGE 10TIMES APPLIED)
REPEATED VOLTAGE APPLICATION(∼1000 times )
20
20
15
15
10
10
ΔV1mA/V1mA(%)
ΔV1mA/V1mA(%)
AVRH10C270KT150NA8 (Voltage % change at reference current: within ±10%)
5 0 –5 –10
5 0 –5 –10 –15
–15 –20
+25kV/-25kV
Initial
±8
±10 ±15 ±20 Applied voltage (kV)
–20
±25
Initial
1
10 100 300 500 Number of discharge (time)
1000
20
20
15
15
10
10
ΔV1mA/V1mA(%)
ΔV1mA/V1mA(%)
AVR-M1608C270MTAAB (Voltage % change at reference current: within ±10%)
5 0 –5 –10
5 0 –5 –10 –15
–15 –20
+25kV/-25kV
Initial
±8
±10 ±15 ±20 Applied voltage (kV)
–20
±25
Initial
1
10 100 300 500 Number of discharge (time)
1000
20
20
15
15
10
10
ΔV1mA/V1mA(%)
ΔV1mA/V1mA(%)
AVR-M2012C390KT6AB (Voltage % change at reference current: within ±10%)
5 0 –5 –10
5 0 –5 –10 –15
–15 –20
+25kV/-25kV
–20 Initial
±8
±10 ±15 ±20 Applied voltage (kV)
±25
Initial
1
10 100 300 500 Number of discharge (time)
1000
5
5
4.5
4.5 Capacitance(pF)
Capacitance(pF)
AVRL101A3R3FTA(Capacitance: 5pF or less)
4 3.5 3 2.5 2
+8kV/-8kV
4 3.5 3 2.5
Initial
±4
±6 ±8 ±10 Applied voltage (kV)
±15
2
Initial
1
10 100 300 500 Number of discharge (time)
1000
* ESD condition: 150pF/330(IEC61000-4-2) Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(13/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
Attention on a circuit board design Board design When attached to chip varistors, amount of silver used (fillet size) has direct impact on chip varistors after mounting. Thus, sufficient consideration is necessary. Set of land dimensions (1) As the stress rises in the chip varistors owing to the increase in silver, breakage and cracks will occur. Cause including crack, as caution on board land design, configure the shape and dimensions so that the amount of silver is appropriate. If you installed 2 or more parts in the Common Land, separated by a solder resist and special land of each component.
C
B
(2) When peak levels panning-at soldering is excessive, by solder contraction stress, mechanical-thermal stress causes a Yasuku chip crack. In addition, when the peak level is underestimated, terminal electrode fixed strength is insufficient. This causes chip dropouts and may affect circuit reliability. Representative example of the panning of peak levels is shown in the following. Recommended silver dose Solder stress is increased, and it is easy for a crack to form.
Solder volume overload
Most large serving amo Minimum prime amount
Decent solder volume
Fixed strength is weak, and there is connection a problem and risk of loss.
Solder volume deficit A
Case and suggested protocol want to avoid Dimensions shape 1005 1608 2012
Symbol A 0.30 to 0.50 0.60 to 0.80 0.90 to 1.20
B 0.35 to 0.45 0.60 to 0.80 0.70 to 0.90
C 0.40 to 0.60 0.60 to 0.80 0.90 to 1.20
Example
Improvement example (land division)
Cases to avoid
Leads
Leads Chip
Solder
Solder resist
Lead wire and land of part discrete doubles up PCB Chassis
Solder (ground solder)
Solder resist
Arrangements in the vicinity L1
L2
L2>L1
Land
Arrangements of chip component's companion
Excess solder
Solder resist
Land Missing solder
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(14/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
Attention on a circuit board design Arrangements of components (1) I was based on camber of substrate and suggested protocol of chip varistors arrangement, as stress does not join to the utmost is shown in following.
(2) In payment near by board, depending on mount position of chip varistors, as mechanical stress varies, please refer to the following diagram.
Substrate for flexural stress Substrate for flexural stress Adverse events Good example
E
D
Perforation
C
Perforation or slit Perforation or slit
B
A
Direction of surface solder
Slit
Solder the mountain fold as a bottom. [Please review the Solder the mountain fold as a italicized portion, as I am top. unsure what you mean to convey here.] Perforation or slit
The order of A > B = C > D > E eases the stress.
Perforation or slit
Chip arrangements (direction) Mounted vertically to the perfo-Mounted horizontally to the ration and slit. perforation and slit. L2
L1
Distance from perforation and slit portion
(L1
P r o t e c t i o n
D e v i c e s
October 2017
Chip varistors Voltage Protection Devices
Automotive grade
AVR series AVRM, AVR-M series AVRM1608/AVR-M1608 AVRM2012/AVR-M2012
JIS 1608 [EIA 0603] JIS 2012 [EIA 0805]
AVRL series AVRL10 AVRL16
JIS 1005 [EIA 0402] JIS 1608 [EIA 0603]
AVRH series AVRH10
JIS 1005 [EIA 0402]
(2/17)
Voltage Protection Devices
REMINDERS FOR USING THESE PRODUCTS Before using these products, be sure to request the delivery specifications.
SAFETY REMINDERS Please pay sufficient attention to the warnings for safe designing when using this products.
REMINDERS Please pay careful attention to the precautions and follow safe designing practices when using these products. Please observe the following precautions in order to avoid problems with chip varistors such as characteristic degradation and element destruction Please store these products in an environment with a temperature of 5 to 40°C and humidity level of 20 to 70%RH, and use them within six months. Poor storage conditions may lead to the deterioration of the solderability of the edge electrodes, so please be careful to avoid contact with humidity, dew condensation, dust, toxic gas (hydrogen, hydrogen sulfide, sulfurous acid, chlorine, ammonia, etc.), direct sunlight, and so on. Please do not use products that have been dropped or detached when mounting. Please solder with the reflow soldering method, and not the flow (dip) soldering method. Please observe the following precautions to avoid problems with varistors such as characteristic degradation and element destruction, which ultimately lead to the generation of heat and smoke with the elements. Do not use in locations where the temperatures exceed the operating temperature range such as under direct sunlight or near sources of heat. Do not use in locations where there are high levels of humidity such as under direct exposure to weather and areas where steam is released. Do not use in locations such as dusty areas, high-saline environments, places where the atmosphere is contaminated with corrosive gas, etc. Avoid powerful vibrations, impact (such as by dropping), pressure, etc. that may lead to splitting in the products. Do not use with a voltage that exceeds the maximum allowable circuit voltage. When resin coating (including modular) a varistor, do not use a resin that will cause deterioration of the varistor. Be sure never to use resin that generates hydrogen as palladium is used for the inner electrode. Avoid attachment near combustible materials. Please contact our sales offices when considering the use of the products listed on this catalog for applications, whose performance and/or quality require a more stringent level of safety or reliability, or whose failure, malfunction or trouble could cause serious damage to society, person or property ('specific uses' such as automobiles, airplanes,medical instruments, nuclear devices, etc.) as well as when considering the use for applications that exceed the range and conditions of this catalog. Please also contact us when using these products for automotive applications. As range of catalog, conditions are transcended, or for damage that generated by was used in application specific, etc, accept no the responsibility, wish. Please take appropriate measures such as acquiring protective circuits and devices that meet the uses, applications, and conditions of the instruments and keeping backup circuits.
20171011 / vpd_automotive_varistors_avr_en.fm
(3/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
Overview of the AVR series CHARACTERISTICS OF CHIP VARISTOR Varistors are voltage dependent nonlinear resistive elements with a resistance that decreases rapidly when the voltage is over the constant value. Varistors become zener diode of 2 serial connection and equivalent, and does not have polarity.
CURRENT vs. VOLTAGE CHARACTERISTICS
EQUIVALENT CIRCUIT OF CHIP VARISTORS 2 Zener Diodes
A capacitance content
CHIP VARISTORS FEATURE FOR AUTOMOTIVE GRADE
Current(A)
10–1
Reliability characteristics evaluated based on AEC-Q200 condition. (except AVRL series) High ESD withstanding voltage Small-sized products are available 125°C, 150°C Supported
10–2 Zener diode /Vz:6.8V
Positive direction
10–3
Chip varistor /V1mA:12V
10–4 10–5 –18 –14
–10
–6
–2
2 –10–5
6
10
14
18
–10–4 –10–3
Negative direction
–10–2
Figure 1 internal structure of multilayer chip varistors
–10–1
①
Voltage(V)
THE EFFECT OF THE VARISTOR Without varistor A malfunction and failure of electronic equipment ESD, Surge voltage
Power line Signal line
IC ②
⑤
With Varistor Suppress transient voltage by inserting varistor in a circuit ESD, Surge voltage
Power line Signal line
IC
No. (1) (2) (3) (4) (5)
④
③
Name Semiconductor ceramic Internal electrode(Pd) Terminal electrode
Ag Ni Sn
Insert a varistor between a line and ground : Chip varistor
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(4/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
Overview of the AVR series COMMUNICATION STANDARD, CIRCUIT EXAMPLE AND COMMUNICATION STANDARD Motors
Type
Chip varistors
LIN/CXPI
Dimensions code JIS [EIA] 1005[0402] 1608[0603] 2012[0805]
Type
Connector
20 kbps N/A AVRM1608C270KT221M N/A
Chip varistors
Connector
CAN Transceiver
Connector
Varistor
1 Mbps AVRH10C270KT150NA8 AVR-M1608C270MTAAB N/A
MOST50
USB2.0
Varistor
2-8 Mbps AVRH10C270KT150NA8 AVR-M1608C270MTABB N/A
OABR (One-Pair Ethernet) 100Base-T1
CMF ETXP
CMF CAN Transceiver
ETXN
Varistor
CMF Varistor
Connector
10 Mbps AVRH10C270KT150NA8 AVR-M1608C270MTABB N/A
Varistor
HOST/ Device
D+
CMF BroadR -reach Phy
D-
ERXP
Connector
LPF
Varistor
ERXN
Varistor Varistor
1005[0402] 1608[0603] 2012[0805]
CMF
CAN Transceiver
Varistor
N/A AVR-M1608C270KT6AB AVR-M2012C390KT6AB
CAN/CAN-FD
CMF
Coil, Bead LIN/CXPI
Transceiver
FlexRay
Dimensions code JIS [EIA]
Classical CAN
Varistor
50 Mbps AVRH10C270KT150NA8 AVR-M1608C270MTAAB N/A
480 Mbps AVRL101A3R3FTA AVRL161A3R3FTA N/A
100Mbps AVRH10C101KT4R7FA8 N/A N/A
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(5/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
Overview of the AVR series PART NUMBER CONSTRUCTION
AVRM
1608
C
Series name
LxW dimensions
Structure code
390
K
T
271
N
Varistor voltage
Varistor voltage tolerance
Packaging style
(V)
(%)
Capacitance or internal special symbol (pF)
Capacitance tolerance (%)
(mm) AVRM series
1608
1.6×0.8
2012
2.0×1.2
C
General structure
390=39×100 220 270 390
AVR-M
1608
C
Series name
LxW dimensions (mm)
Structure code
AVR-M series
1.6×0.8
2012
2.0×1.2
Series name AVRL series L=Low cap
C
General structure
220 270 390
LxW dimensions (mm) 10 1.0×0.5 16 1.6×0.8
Maximum continuous voltage (Vdc) 1A 10
Series name
LxW dimensions
C Structure code
10 1.0×0.5
H=High Reliability
±20 ±30
B
Bulk
Varistor voltage
270=27×100 270 390 101
Packaging style
Company special symbol
K
±10
T
Taping
M N
±20 ±30
B
Bulk
F
K
K
27 39 100
Capacitance tolerance (pF) F ±1 G ±2
T
±10
220 270
Varistor voltage tolerance (%)
(pF) 3.3 6.8
Varistor voltage tolerance (%)
221 271
AAB
Capacitance 3R3 6R8
271=27×101
K
±10
M N
±20 ±30
T
A
Packaging style
Company special symbol
T B
Taping Bulk
150
N
A
8
ESD voltage Operating Capacitance Capacitance amount temperature Packaging style tolerance IEC61000-4-2 limit (°C) (pF) (kV) T
Taping
B
Bulk
150=15×100
N
±30%
150 500 4R7
F
±1pF
15 50 4.7
A
25
8
150
W
L
M N
3R3
(V) C
Taping
T
22 27 39
270
(mm) General structure
T
M
270=27×100
1A
10
AVRH series
Varistor voltage
10
AVRH
±10
270 (V)
1608
AVRL
22 27 39
K
T
Shape symbol(JIS) 1005 1608 2012
L 1.00±0.05 1.60±0.1 2.00±0.2
W 0.50±0.05 0.80±0.1 1.25±0.2
T 0.50±0.05 0.80±0.1 1.00±0.2
B 0.1min. 0.2min. 0.2min.
B
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(6/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
Overview of the AVR series OPERATING TEMPERATURE RANGE, PACKAGE QUANTITY, PRODUCT WEIGHT Temperature range Operating temperature (°C)
Type
Storage temperature (°C)
Package quantity
Individual weight
(pieces/reel)
（mg）
10,000
1.2
4,000
5
2,000
13
AVRM1005 AVR-M1005 –40 to +125 –40 to +125 AVRL10 AVRH10 –40 to +150 –40 to +150 AVRM1608 AVRL16 –40 to +125 –40 to +125 AVR-M1608 AVR-M2012 Operating temperature range includes self-temperature rise. The storage temperature range is for after the assembly.
TERMINOLOGY Item Varistor voltage (Breakdown voltage)
Unit V1mA (V)
Maximum continuous voltage
Vdc (V)
Clamping voltage
Vcl (V)
Maximum energy
E (Joule)
Maximum peak current
Ip (A)
Capacitance
C (pF)
1
Chip varistor-terminal voltage when DC1mA was flowed DC voltage that is continuously applied between chip varistor terminals Terminal chip varistors leakage current-value: 50µA max Voltage appearing across the varistor when a pulse current (8/20µs1) of specified peak value is applied. Voltage between terminal chip varistors of the Specified peak current value of the impulse current(8/ 20µs1) is applied When applied specified peak impulse current-value current(10/1000µs2) once, maximum energy that electrical property of chip varistors be not deteriorated When applied impulse current(8/20µs1) once, maximum current that electrical property of chip varistors be not deteriorated Oscillator frequency 1kHz or 1MHz, Capacitance between chip varistor-terminal in oscillator voltage 1Vrms
2
8/20µs test waveform 100% 90%
10/1000µs test waveform
100% 90%
Current
Current
Description
50%
8µs
50%
10µs 20µs
1000µs Time
Time
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(7/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
AVRseries (Automotive grade) Product characteristics list PRODUCT CHARACTERISTICS LIST Item AVRL101A3R3FTA AVRL101A6R8GTA AVRL161A3R3FTA AVRL161A6R8GTA AVRH10C270KT150NA8 AVRH10C390KT500NA8 AVRH10C101KT4R7FA8 AVR-M1608C220KT2AB AVR-M1608C220KT6AB AVR-M1608C270MTABB AVR-M1608C270MTAAB AVR-M1608C270KTACB AVRM1608C270KT800M AVR-M1608C270KT2AB AVRM1608C270KT221M AVR-M1608C270KT6AB AVRM1608C390KT271N AVR-M2012C220KT6AB AVR-M2012C390KT6AB
V1mA
C1kHz C1MHz
Vdc
(V) 27(21.6 to 32.4) 27(21.6 to 32.4) 27(21.6 to 32.4) 27(21.6 to 32.4) 27(24.0 to 30.0) 39(35.0 to 43.0) 100(90 to 110) 22(19.8 to 24.2) 22(19.8 to 24.2) 27(21.6 to 32.4) 27(21.6 to 32.4) 27(24.0 to 30.0) 27(24.0 to 30.0) 27(24.0 to 30.0) 27(24.0 to 30.0) 27(24.0 to 30.0) 39(35.0 to 43.0) 22(19.8 to 24.2) 39(35.0 to 43.0)
(pF) 3.3(2.3 to 4.3) 6.8(4.8 to 8.8) 3.3(2.3 to 4.3) 6.8(4.8 to 8.8) 15(10.5 to 19.5) 50(35 to 65) 4.7(3.7 to 5.7) 210 560 15 30 60 80(64 to 96) 160 220(176 to 264) 430 270(189 to 351) 800 430
DC (V) 10 10 10 10 19 28 70 16 16 17 17 19 19 19 19 19 28 16 28
Clamping voltage 8/20µs Pulse Vcl (V) 62(0.5A) 58(1A) 62(0.5A) 58(1A) 52(2A) 72(2A) 190(1A) 37(2A) 34(2A) 52(2A) 52(2A) 54(2A) 53(2A) 42(2A) 52(2A) 42(2A) 69(2A) 38(5A) 62(5A)
Maximum Maximum energy peak current 10/1000µs Pulse 8/20µs Pulse E (J) Ip (A) 0.01 0.5 0.01 1 0.01 0.5 0.01 1 0.02 2 0.02 15 0.03 1 0.03 10 0.1 30 0.05 2 0.05 2 0.05 10 0.02 28 0.1 20 0.1 40 0.1 48 0.1 78 0.3 100 0.3 100
IEC61000-4-2 (Contact) 150pF/330 8kV 8kV 8kV 8kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV 25kV
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(8/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
AVRL, AVRH series: JIS1005 [EIA0402] Electrical characteristics ELECTRICAL CHARACTERISTICS CURRENT vs. VOLTAGE CHARACTERISTICS 100
1000000
10–1
100000 V1mA=39V
V1mA=27V
10000 Impeadance(Ω)
10–2 Current(A)
IMPEDANCE vs. FREQUENCY CHARACTERISTICS
10–3
10–4
1000
100
10–5
10
10–6
1
10–7
0
10
20 30 Voltage(V)
40
TRANSMISSION CHARACTERISTICS
1
10
100 Frequency(MHz)
1000
10000
CAPACITANCE vs. FREQUENCY CHARACTERISTICS
10
10000
6.8pF 0
0.1
50
15pF 6.8pF 3.3pF
3.3pF
1000
15pF
Capacitance(pF)
Insertion loss(dB)
–10
–20
–30
100 15pF 6.8pF 10
3.3pF
–40
1 –50
–60
1
10
100 Frequency(MHz)
1000
10000
0.1
1
10
100 Frequency(MHz)
1000
10000
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(9/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
AVRL, AVRM, AVR-M series: JIS1608 [EIA0603] Electrical characteristics ELECTRICAL CHARACTERISTICS CURRENT vs. VOLTAGE CHARACTERISTICS
IMPEDANCE vs. FREQUENCY CHARACTERISTICS
100
1000000
10–1
100000 V1mA=22V
V1mA=27V
V1mA=39V
10000 Impeadance(Ω)
Current(A)
10–2
10–3
10–4
1000
100 560pF
10–5
10
10–6
1
10–7
0
10
20 30 Voltage(V)
40
0.1
50
TRANSMISSION CHARACTERISTICS
60pF 30pF 15pF 6.8pF 3.3pF
430pF 220pF 160pF
1
10
100 Frequency(MHz)
10000
CAPACITANCE vs. FREQUENCY CHARACTERISTICS
10
10000 6.8pF 3.3pF
430pF
0
560pF
1000
–20
430pF
15pF
220pF
–30
Capacitance(pF)
560pF
–10
Insertion loss(dB)
1000
160pF
30pF 60pF
220pF 160pF 60pF
100
30pF 15pF 6.8pF
10 3.3pF
–40
1 –50
–60
1
10
100 Frequency(MHz)
1000
10000
0.1
1
10
100 Frequency(MHz)
1000
10000
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(10/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
AVR-M series: JIS2012 [EIA0805] Electrical characteristics ELECTRICAL CHARACTERISTICS CURRENT vs. VOLTAGE CHARACTERISTICS
IMPEDANCE vs. FREQUENCY CHARACTERISTICS 1000
100
10–1 V1mA=22V
100
V1mA=39V
Impeadance(Ω)
Current(A)
10–2
10–3
10–4
10–5
800pF 10
430pF
1
10–6
10–7
0
10
20 30 Voltage(V)
40
0.1
50
TRANSMISSION CHARACTERISTICS
1
10
100 Frequency(MHz)
1000
10000
CAPACITANCE vs. FREQUENCY CHARACTERISTICS
10
10000
0 800pF
430pF
Capacitance(pF)
Insertion loss(dB)
–10
–20
800pF –30
430pF
1000
–40
–50
–60
1
10
100 Frequency(MHz)
1000
10000
100
1
10
100 Frequency(MHz)
1000
10000
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(11/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
AVR series Electrostatic absorption characteristics DISCHARGE VOLTAGE WAVEFORM (EXAMPLE) 1800 1600 1400 1200 1000 800 600 400 200 0 –200 –50
WAVEFORM AT VARISTOR INSTALLATION
Without Varistor
Voltage(V)
Voltage(V)
WITHOUT VARISTOR, WAVEFORM AT VARISTOR INSTALLATION
AVRH10C270KT150NA8 AVR-M1608C270KT6AB AVR-M1608C220KT6AB
0
50
100
150 Time(ns)
200
250
300
180 160 140 120 100 80 60 40 20 0 –20 –50
AVRH10C270KT150NA8 AVR-M1608C270KT6AB
AVR-M1608C220KT6AB
0
50
100
150 Time(ns)
200
250
300
Test conditions 150pF/330 (IEC61000-4-2) Contact discharge, Charged voltage 8kV TEST CIRCUIT DIAGRAM Discharge gun
Test sample 60dB attenuator
ESD simulator
50Ω Oscilloscope
I/O impedance: 50Ω
Shield Discharge Point
SMA Connector
PCB ESD Simulator
Chip Varistor
Coaxial Cable
Attenuator(60dB) 50Ω
Oscilloscope 50Ω
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(12/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
AVR series Electrostatic discharge tests APPLIED VOLTAGE STEP(VOLTAGE 10TIMES APPLIED)
REPEATED VOLTAGE APPLICATION(∼1000 times )
20
20
15
15
10
10
ΔV1mA/V1mA(%)
ΔV1mA/V1mA(%)
AVRH10C270KT150NA8 (Voltage % change at reference current: within ±10%)
5 0 –5 –10
5 0 –5 –10 –15
–15 –20
+25kV/-25kV
Initial
±8
±10 ±15 ±20 Applied voltage (kV)
–20
±25
Initial
1
10 100 300 500 Number of discharge (time)
1000
20
20
15
15
10
10
ΔV1mA/V1mA(%)
ΔV1mA/V1mA(%)
AVR-M1608C270MTAAB (Voltage % change at reference current: within ±10%)
5 0 –5 –10
5 0 –5 –10 –15
–15 –20
+25kV/-25kV
Initial
±8
±10 ±15 ±20 Applied voltage (kV)
–20
±25
Initial
1
10 100 300 500 Number of discharge (time)
1000
20
20
15
15
10
10
ΔV1mA/V1mA(%)
ΔV1mA/V1mA(%)
AVR-M2012C390KT6AB (Voltage % change at reference current: within ±10%)
5 0 –5 –10
5 0 –5 –10 –15
–15 –20
+25kV/-25kV
–20 Initial
±8
±10 ±15 ±20 Applied voltage (kV)
±25
Initial
1
10 100 300 500 Number of discharge (time)
1000
5
5
4.5
4.5 Capacitance(pF)
Capacitance(pF)
AVRL101A3R3FTA(Capacitance: 5pF or less)
4 3.5 3 2.5 2
+8kV/-8kV
4 3.5 3 2.5
Initial
±4
±6 ±8 ±10 Applied voltage (kV)
±15
2
Initial
1
10 100 300 500 Number of discharge (time)
1000
* ESD condition: 150pF/330(IEC61000-4-2) Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(13/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
Attention on a circuit board design Board design When attached to chip varistors, amount of silver used (fillet size) has direct impact on chip varistors after mounting. Thus, sufficient consideration is necessary. Set of land dimensions (1) As the stress rises in the chip varistors owing to the increase in silver, breakage and cracks will occur. Cause including crack, as caution on board land design, configure the shape and dimensions so that the amount of silver is appropriate. If you installed 2 or more parts in the Common Land, separated by a solder resist and special land of each component.
C
B
(2) When peak levels panning-at soldering is excessive, by solder contraction stress, mechanical-thermal stress causes a Yasuku chip crack. In addition, when the peak level is underestimated, terminal electrode fixed strength is insufficient. This causes chip dropouts and may affect circuit reliability. Representative example of the panning of peak levels is shown in the following. Recommended silver dose Solder stress is increased, and it is easy for a crack to form.
Solder volume overload
Most large serving amo Minimum prime amount
Decent solder volume
Fixed strength is weak, and there is connection a problem and risk of loss.
Solder volume deficit A
Case and suggested protocol want to avoid Dimensions shape 1005 1608 2012
Symbol A 0.30 to 0.50 0.60 to 0.80 0.90 to 1.20
B 0.35 to 0.45 0.60 to 0.80 0.70 to 0.90
C 0.40 to 0.60 0.60 to 0.80 0.90 to 1.20
Example
Improvement example (land division)
Cases to avoid
Leads
Leads Chip
Solder
Solder resist
Lead wire and land of part discrete doubles up PCB Chassis
Solder (ground solder)
Solder resist
Arrangements in the vicinity L1
L2
L2>L1
Land
Arrangements of chip component's companion
Excess solder
Solder resist
Land Missing solder
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. Please note that the contents may change without any prior notice due to reasons such as upgrading.
20171011 / vpd_automotive_varistors_avr_en.fm
(14/17)
Voltage Protection Devices Product compatible with RoHS directive Compatible with lead-free solders AEC-Q200
Chip varistors Automotive grade
Attention on a circuit board design Arrangements of components (1) I was based on camber of substrate and suggested protocol of chip varistors arrangement, as stress does not join to the utmost is shown in following.
(2) In payment near by board, depending on mount position of chip varistors, as mechanical stress varies, please refer to the following diagram.
Substrate for flexural stress Substrate for flexural stress Adverse events Good example
E
D
Perforation
C
Perforation or slit Perforation or slit
B
A
Direction of surface solder
Slit
Solder the mountain fold as a bottom. [Please review the Solder the mountain fold as a italicized portion, as I am top. unsure what you mean to convey here.] Perforation or slit
The order of A > B = C > D > E eases the stress.
Perforation or slit
Chip arrangements (direction) Mounted vertically to the perfo-Mounted horizontally to the ration and slit. perforation and slit. L2
L1
Distance from perforation and slit portion
(L1
