Littelfuse PCB Miniature Reed Switch 500 mA 200 V HE3621A0500

Littelfuse HE3621A0500 PCB Miniature Reed Switch is engineered for precision switching tasks requiring a maximum switching current of 500 mA and voltage rating of 200 V. This component is tailored for printed circuit board mounting with wire terminals, allowing straightforward soldering and installation in industrial and commercial electrical assemblies.

The reed switch has a maximum switching power capacity of 10 W, operating with exceptionally low contact resistance of 150 milliohms. It delivers fast switching speed with operating and release times including bounce of merely 1 ms each, enhancing performance in rapid control circuits.

Operating reliably over a temperature range of -40°C to +85°C, the unit withstands harsh environments and temperature variations common in industrial, telecommunications, security, and test equipment applications. The hermetically sealed construction ensures protection against contaminants and environmental damage.

Its compact form factor measures 19.7 mm in length, 5.65 mm in width, and 7.87 mm in depth, making it suitable for space-constrained installations. The product carries UR standards certification, confirming strict adherence to safety and manufacturing quality standards.

Littelfuse’s HE3621 series includes options with diode suppression coil for additional coil drive protection, although this specific model features a standard configuration. This switch is optimal for use in security systems, telecom equipment, process control systems, and automatic test setups requiring tightly controlled switching operations.

This miniature reed switch is mounted on PCB with wire terminals for easy integration. Maximum switching power is 10 W suitable for low power circuits. Contact resistance is low at 150 milliohms ensuring efficient operation.

Operates reliably between temperatures of -40°C and 85°C for versatile industrial use. Features rapid response with maximum release and operating times of 1 ms. Hermetically sealed design prevents external environmental effects.

Compact dimensions with length 19.7 mm, width 5.65 mm, and depth 7.87 mm. Compliant with UR standards for safety and quality assurance. Ideal for applications including security systems, telecom equipment, process control, and automated test equipment.

This Littelfuse miniature Reed Switch represents a high-quality component choice for engineers and design professionals in fields such as industrial automation, telecommunications, laboratory instrumentation, and manufacturing where precise, reliable switching is critical. Explore the full Littelfuse category on EnvMart for related products and variations.