These are flat type ultra miniature (SMT), 5.20.2mm height (through hole) relays for telecommunication and data networking equipments, made of high heat resistant material, which can support IRS and VPS methods. Ultra slim and light weight with a 5.250.2 mm height and approximately 0.8 g weight, and an 87mm2 mounting area. Most suitable for decreasing size and weight, space saving and high density packaging of equipment. Contact spring has superb high frequency characteristics. High insulation design conforming to the Bellcore, FCC standard, with a minimum of 1.6 mm between coil and contacts insulation distance, an AC 1.5kV coil contact withstand voltage, and a 2.5kV coil-contact withstand surge voltage.