The RP1-12V is a high-frequency relay designed for 1.8 GHz operation with a compact 4 mm low profile form factor (10.6 × 9 × 4 mm). It features excellent high-frequency characteristics including isolation of minimum 10 dB at 1.8 GHz, insertion loss of maximum 1.0 dB at 1.8 GHz, and V.S.W.R. of maximum 1.3 at 1.8 GHz. The relay operates at 12 V DC nominal coil voltage with a nominal operating current of 11.7 mA, coil resistance of 1,028 O, and nominal operating power of 140 mW. It utilizes a 1 Form C contact arrangement with silver-gold clad stationary contacts and silver-palladium movable contacts, rated for 0.1 A at 30 V DC resistive load with contact carrying power of 1 W at 1.8 GHz. The RP1-12V is ideal for switching signals in measuring equipment and compact wireless devices, offering high sensitivity in a small size with RoHS compliance and automatic mounting capability via tube packaging.