34

Glass Encapsulated SMD Varistor MLV

(VJ12, 20, 13, 14, 15, 32)

Automotive MLV Range – MA and PA Series

AUTOMOTIVE SERIES – VJ12, 20, 13, 14, 15, 32 MA and PA SERIES

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.

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

VJ20MA0160K

0.5 Ohm

1 Ohm

2 Ohms

50ms

333439

100ms

31

31

34

200ms

27

28

33

400ms

28

30

34

VJ13PA0160K

0.5 Ohm

1 Ohm

2 Ohms

50ms

444857

100ms

36

39

46

200ms

33

33

39

400ms

29

28

34

VJ14PA0160K

0.5 Ohm

1 Ohm

2 Ohms

50ms

606885

100ms

46

52

62

200ms

37

41

50

400ms

32

35

43

VJ15PA0160K

0.5 Ohm

1 Ohm

2 Ohms

50ms

98

116

150

100ms

66

80

104

200ms

50

60

78

400ms

41

47

58

VJ32PA0160K

0.5 Ohm

1 Ohm

2 Ohms

50ms

146

186

200

100ms

105

131

179

200ms

72

88

113

400ms

54

67

96

Pulse 5: Typical Vz max versus Pulse duration and Rs

Voltage Pulse applied to the varistor: