Reed switches and reed sensors are designed to provide efficient and reliable operation, and a critical factor in their performance is contact resistance. Ensuring stable and low contact resistance not only enhances durability but also improves efficiency by minimizing heat generation during operation.
Lead Formation
Cropping or forming the leads reduces magnetic flux carrying capability, thereby reducing the actuation distance and requiring a stronger magnet.
Lead modification should be done by the manufacturer using special tools that protect the delicate glass-to-metal hermetic seals and to ensure bulk magnetic sensitivity scattering is controlled.
All electro-magnetic tests should be conducted after lead formations.
Application Information
It is crucial for the end user to give the manufacturer complete application details regarding ambient temperature, switching voltage and current, and the type of load.
- Temperature: Higher temperatures reduce the sensitivity of the sensors and the strength of magnets, decreasing the actuation distance.
- Voltage and Current: Switching voltage and current helps the manufacturer run accelerated life tests and predict sensor performance.
- Load Type: Resistive loads offer maximum durability and life, while inductive/capacitive loads need extra protection components to extend life of Reed based products.
For more information regarding contact protection circuits, visit: https://www.reed-sensor.com/help-support/protection-circuits/
We look forward to working closely with Reed Switch and Magnetic Sensor customers to help them achieve peak application performance!
