SIL Reed Relays Standex-Meder Electronics SIL Reed Relays are dual in-line IC compatible relays that are available with a dielectric strength of 4.25VDC. The SIL series features a 10W or 50W maximum rated power, a 109GΩ or a 1010GΩ typical insulation resistance, and a -20°C to +70°C operating temperature range. The relays are ideal for general purpose applications, measuring and testing devices and various markets (telecommunications, test and measurement, security). The series features breakdown voltages across contact up to 4kVDC, small sizes to save space, insulation resistance, internal magnetic shield on all relays, and REACH and RoHS compliance.