The 3SBC1721A2 is a Type 3SBC standard low signal relay featuring a low-profile of only 0.32 inches high, designed for space-saving in dense electronic packaging. This 2PDT relay has a DC resistive contact rating of 2 amps at 28 volts and provides a life of 100,000 operations at its rated load. It is qualified to MIL-R-39016/13 and built to withstand harsh environments, with an operating temperature range of -65°C to +125°C, shock resistance of 100 G, and vibration resistance up to 30 G. The relay's fast switching, with 4 ms maximum operate and release times, makes it ideal for high-reliability military and aerospace applications.