BPA04B is a 4-position side actuated DIP switch from the BPA Series, designed for logic switching and address configuration in industrial controls and computer peripherals. It features a high pressure contact system with beryllium copper contacts plated with gold over nickel, providing a contact resistance of 50 milliohms initial maximum and contact rating of 100 mA at 5 V DC or 25 mA at 24 V DC. The switch offers thru-hole PC mounting terminals with dimensions of 0.476 inch (12.1 mm) for dimension 'A' and 0.300 inch (7.62 mm) for dimension 'B'. Operating over a temperature range of -20°C to 85°C with a mechanical and electrical life of 1,000 cycles minimum, this RoHS compliant switch is ideal for address switching, logic switching, and function control applications.