K4.2X45/D7982C-A2 is a part of the K4 family of relays from Kraftberg. It is a 4PDT, surface mount, PCB relay that measures 2.50mm x 4.50mm. It has two normally open (NO) and two normally closed (NC) contacts, and a 5.08mm terminal pitch. The relay has a VDE and UL approved dielectric strength of 1 kVrms between contacts and coil, and an initial contact resistance of 100mOmax. It has a maximum ambient operating temperature of 85°C, and an electrical life expectancy of 100,000 operations at 20 cycles/minute. It is rated for a coil voltage range of 5-12V and a coil resistance of 1.2O.