Protecting automotive battery lines with a fail safe varistor

Protecting automotive battery lines with a fail safe varistor

New Products |
By Nick Flaherty

The new chip varistors offer reliable protection against transient surge voltages according to ISO 7637-2, and meet the failsafe requirements according to the VW standard VW 80808. Even when subject to excessive bending stress, short-circuits are avoided, which is particularly important for unswitched battery terminals.

The new surge protection components are designed for an operating voltage of 14 VRMS or a maximum direct voltage of 16 VDC. The three types of the B725*0G1140S862 series are designed for surge currents of 120 A, 200 A and 400 A, with each 8/20 µs. Depending on the surge current capability, the chip varistors are available in sizes EIA 0805, 1206 and 1210, and are suitable for a wide temperature range of -55°C to +150°C.

Type Ordering
Operating voltage, max. [V] Surge current, max. (8/20 µs) [A] Terminal voltage
CT0805S14BAUTOGOM_G B72510G1140S862 14 16 120 42
CT1206S14BAUTOGOM_G B72520G1140S862 14 16 200 40
CT1210S14BAUTOGOM_G B72530G1140S862 14 16 400 40

Further information is at

Related varistor articles 

If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :    eeNews on Google News


Linked Articles