Featuring a built-in input resistor, the RF voltage-sensitive PhotoMOS series relays save PCB space. The relays offer load voltages of 40 to 60 V, with low-CxR and high-capacity varieties, including ...

Relays continue to be useful and popular, but in low-power, battery operated applications they tend to be power wasters. The following relay economy circuits reduce coil power significantly by simply ...

In electric and hybrid vehicles, to reduce initial surge currents from battery to inverter input capacitors at power-up, a capacitor pre-charge circuit can be employed. For situations where this is ...

Relays and solenoids are available with many different voltage ratings. Most factory- and process-automation equipment operates from 24-V supplies. However, customers may have control signals for a ...