16

Medium Power Multilayer Chip Varistor

Transient Voltage Suppression, ESD Protection Devices & EMI Devices

AUTOMOTIVE SERIES – VJ13, 14, 15, 20

AUTOMOTIVE LOAD DUMP TEST

(According to ISO DP7637/2 Pulse 5)

0V

Tr

Td

10%

90%

t

When using the test method indicated below,

the amount of Energy dissipated by the

varistor must not exceed the Load Dump

Energy value specified in the product table.

Voltage Pulse applied to the varistor:

12V Network

Vi = 13.5V

Td = 100 to 350ms

Ri = 2 Ohms (Internal Resistance)

Vz - 70 to 200V

Number of Pulses = 10 Pulses

Other Load Dump Simulations can be achieved

24V Network

Vi = 27V

Td = 100 to 350ms

Ri = 2 Ohms (Internal Resistance)

Vz - 70 to 200V

Number of Pulses = 10 Pulses

16%

14%

12%

10%

8%

6%

4%

2%

0%

0

100

200

300

Number of Strikes

VJ20MA0160K @200A

VJ13MA0160K @400A

VJ15MA0340K @1200A

VJ14MA0160K @800A

VJ15MA0160K @1200A

VJ15PA0160K @1200A

400

500

600

PULSE DEGRADATION

Repetitive Peak Current Strikes