Compact DC relays save space in automotive and mobility applications

Three PCB relays from Omron Electronic Components Europe are compact for use in automotive and mobility applications. The Omron G8K, G8G and G8PM relays support high performance DC motor control with a floor size and volume that is up to 95 per cent smaller than similar relays on the market, said the company.

They are smaller than standard DA relays and deliver high contact pressure with maximum coil size combined with AC500V insulation capacity. Each device targets the specific needs of different motor control applications in a format that favours high density mounting to reduce overall PCB costs.

The G8K series of miniature devices for short term switching in applications such as automotive comfort electronics (e.g. seat controllers, door lock motors and sunroof motors) are 95 per cent of the volume and footprint of comparable devices. An optional twin version (two joined together) further increases mounting density. Featuring 37A short term and 5.0A continuous current carrying capacity, the G8K relays have a durability of 100,000 operations at rated load. The contacts and heat release design is responsible for high wattage switching in a compact format.

The G8G series can be used as a direct replacement for micro-ISO plug-in type relays. Applications include in engine bays due to the high heat resistance. The small size facilitates high density mounting and contributes to smaller end products. The G8G is available in a 24V type, making it a replacement from P-in to PCB relay – and at 25 per cent smaller than available alternatives. It is suitable for commercial vehicle applications (e.g. seat heater, door lock, seat controls, defroster).

The G8PM series features a patented contact structure that holds the carrying path for high contact reliability. Designed as a replacement for traditional mini ISO relays, it is around half the size yet has a capacity for up to one million operations. The G8PM devices are suitable for heavier-duty automotive applications such as motor radiator fans, power steering, fuel pumps and starter motors. These high power DC switching PCB relays offer DC14V/45A switching (resistive), with high carry current (40A) at high ambient temperature 125 degrees C. 

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