Tungsten Contacts in Automotive Relay

Tungsten contacts can be applied in automotive relay. Automotive relay is a relay in automotive applications, which consist of contact system, magnetic system and restoring mechanism, and tungsten contacts are used in contact systems; magnetic system is consisting of the coil, the core, the armature, etc.; restoring mechanism is composed of tension spring.
Relay is a kind of automatic control devices, when the input reaches a certain condition, so that output can change by leaps and bounds.

The environmental condition of tungsten contacts in automotive relay is harsh:
Withstanding high load power;
Standing instable voltage;
With good anti-seismic performance and its impact resistance should be better;
With corrosion resistance, tungsten contacts should be able to withstand water, salt, oil, sand, and dust, and other abuse;
Ambient temperature range requirements is : 40 ℃ ~ 125 ℃, other locations ambient temperature range is between -40 ℃and 85 ℃.

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