What does this do? SPNO - All About Circuits

spnoDIL Reed Relay SPNO 12V Coil Note: Image is representative of range A good quality Single Pole, Normally Open reed relay that offers fast and quiet operation. Housed in a Dual in- package. Specification * CoilHartland Controls Littelfuse HCR-5 SPNO and SPDT General Purpose Switching Relays are used in applications such as HVAC systems, standby power supplies, and telephone