The TDD Series surface mount jumper DIP switches from C&K components are sealed with a removable top tape to enable them to be used in reflow soldering and washable assembly processes. The switches are RoHS-compliant single-pole, single-throw (SPST) jumpers designed for surface mount PCB soldering. They feature a unique bifurcated contact design to increase electrical reliability. The contacts are constructed from copper alloy with gold plate over nickel plate and are rated for 25mA at 24VDC (switching) and 100mA at 50VDC (steady state). The switches have an operating temperature range from -30°C to 85°C and an operational life cycle of 200.