Magnecraft recommends a PCB layout with a solid ground plane and a thermal pad connected to the ground plane to dissipate heat. A minimum of 1 oz copper thickness is recommended, and the PCB should be designed to minimize thermal resistance.
To ensure reliable operation in high-vibration environments, Magnecraft recommends securing the relay with a screw or adhesive, and using a conformal coating to protect the device from moisture and contaminants. Additionally, the relay should be mounted on a PCB with a rigid design to minimize flexure.
The maximum surge current rating for the W117SIP-22 is 100A for 10ms, as specified in the Magnecraft application note AN-101. This rating is based on the relay's ability to withstand high inrush currents without damage.
Yes, the W117SIP-22 is designed to meet the requirements of safety-critical applications, such as IEC 61508 and IEC 60601-1. However, it is essential to follow the recommended design and testing guidelines to ensure compliance with the relevant safety standards.
Magnecraft recommends derating the relay's current rating by 1.5% per degree Celsius above 40°C to ensure reliable operation at high temperatures. This derating is based on the relay's thermal characteristics and is specified in the datasheet.
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