The Grayhill Series 51 single deck rotary switch is designed for applications requiring compact size and versatile switching options. It features a 0.5" diameter, allowing for integration into space-constrained designs. The switch offers a choice of 22.5°, 30°, 36°, 45°, 60°, and 90° angles of throw, and can accommodate up to 4 poles on a single deck with up to 16 positions. Termination options include PC or solder lug, and positive shaft grounding provides EMI/RFI shielding. Military qualified versions are available (MIL-S-3786/20 and MIL-S-3786/35) for demanding environments. Electrical ratings include a life expectancy of 25,000 cycles at specified loads and voltages, with contact resistance of 20 milliohms maximum.