The 78F01ST is a thru-hole DIP switch from Grayhill's Series 78 featuring a single pole/single throw (SPST) configuration with a raised slide actuator. This switch incorporates spring and ball contact technology with a sealed base design and offers a compact length of 0.280 inches (7.1 mm). The device is rated for 2,000 mechanical operations per switch position and supports make-and-break current ratings of 1 mA at 5 Vdc, 50 mA at 30 Vdc, or 150 mA at 30 Vdc. With an initial contact resistance of =30 mO and insulation resistance of 5,000 MO, the 78F01ST delivers reliable switching performance across a wide operating temperature range of -40°C to +85°C. This switch is ideal for applications requiring compact, sealed switching solutions in industrial control, telecommunications, and consumer electronics where space constraints and environmental protection are important considerations.