High-power latching relay facilitates battery disconnect in 12-V vehicles

Fujitsu Components America has unveiled a high-power latching relay for enabling high-current safety and power efficiency solutions in 12-V battery vehicles. The FTR-V1 relay comes in a low-profile sealed package that occupies a compact footprint of 85 x 52 mm and weighs 120 grams.

The compact and lightweight PCB relay is primarily targeted at automotive applications like battery coupling, emergency battery disconnect, regenerative braking systems, and switching control between two batteries.

FTR-V1 is a 210-A relay that offers continuous current carrying capabilities of 160 A at 25°C and 110 A at 120°C. Fujitsu's new latching relay — when used in an ambient operating temperature range of –40°C to 120°C — delivers a contact life of 100,000 operations.

Moreover, the FTR-V1 relay features a double-winding latching coil and contact resistance of 600 µΩ. The press-fit terminals on the control side of the relay eliminate the need for harnesses and allow direct connection to the PCB. There are also terminal screws available for the load.

The price of these latching relays starts at $62.65 for single- to five-piece quantities.