Sensata Technologies Reed Relays S4-05-Q

The S4-05-Q is a vertically mounted miniature SPST (Form A) reed relay with a 5V DC coil, designed for high-voltage switching applications up to 350V DC and a carry current of 2.5A DC. It features a rhodium contact material, 3kV isolation across contacts, and 4kV isolation between contact and coil. The relay has a switching power rating of 100W, contact resistance of 100mΩ maximum, and an insulation resistance of 10¹⁰Ω typical. Operate and release voltages are 3.75V DC and 0.5V DC respectively, with a coil resistance of 90Ω ±10%. It operates from -40°C to +85°C and is UL approved for pollution degree 2. The package is compact, optimized for space-constrained applications.