Ultra-miniature 25 A automotive relay trims size, weight and cost

21 March 2007 Switches, Relays & Keypads

Fujitsu Components Europe's fourth-generation, ultra-miniature automotive relay for motor applications is a slim device that is 28% smaller than its third-generation predecessor, the FTR-P3. The FTR-G1 is a PCB-mount, 1 form C, single relay that can handle 25 A loads at 14 V d.c. for high in-rush applications such as power window and gate lifts, automatic sliding doors, door locks, adjustable seats, and intermittent wipers. Because the FTR-G1 is used in modules typically mounted within the passenger compartment, its acoustic noise level is a low, 60 dB (max.).

The relay measures a compact 13,7 x 6,6 x 13,5 mm (L x W x H). It features a unique pin layout that contributes to the relay's reduced size while also retaining sufficient isolation distance for simplified PCB layout. Coil power is 640 mW.

Fujitsu developed an efficient, magnetic circuit to minimise the relay's size, weight, and power consumption. A highly conductive spring, along with high-temperature moulds and coil wire, increases heat resistance.

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