Heatsinks HF92B Series

Heatsinks HF92B Series

SSRs will only achieve their promise of reliability and long life if they are kept cool. 

Normally it is suggested to keep the temperature of the SSR metal base at less than 85°C (185°F). 

Heatsinks can be an effective solution to ensure the proper operation and long term reliability of SSRs, becausethey provide a means to dissipate the power that is normally developed internally in the SSR into the surrounding ambient air and maintain a safe operating temperature. 

And it is very important to know how to select and use a heatsink for the reason that the heatsink directly affects the Max. 

load current and the Max. ambient temperature that the SSR can endure.

Heatsinks are made of high thermal conductive material such as aluminum. 

Usually the metal base of the SSR will be coated with some thermal grease or a thermal pad to enhance heat dissipation, and then the SSR will be firmly pressed against the heatsink for full adherence. 

For high-power SSRs the wind cooling should be required. 

Insufficient thermal dissipation may cause permanent damage to the SSR due to overheating.

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• Heatsinks（HFS92B Series）.pdf