SD04H0SK is a 4-position low-profile DIP switch featuring a sealed flush actuator with top tape seal and surface mount terminals designed for industrial controls, computer peripherals, and logic switching applications. The switch is process sealed to withstand soldering and cleaning processes, with a compact profile that saves board space. It features copper alloy contacts with gold plating, tin-lead plated copper alloy terminals, and polyester tape seal for durability. The switch supports a carry rating of 100 mA at 50 V DC maximum and a switch rating from 0.1 mA at 5 V DC minimum to 100 mA at 25 V DC maximum, with contact resistance below 50 milliohms typical at 2–4 V DC and 100 mA. With 2,000 make-and-break cycles at full load per circuit and an insulation resistance of 10? ohms minimum, this switch is ideal for address switching in industrial controls and function control in numerous applications requiring reliable, compact switching solutions.