Solid State Relay Heatsinks

Solid state relay heatsinks are devices that provide solid state relays with a means of dissipating heat and maintaining safe operating temperatures. All solid state relays generate heat and failure to manage this can result in the relay's failure or destruction.

What are solid state relay heatsinks made from?

Solid state relay heatsinks are made of high thermal conductive materials such as silver, gold, copper or aluminium. Aluminium is commonly used for its availability and low cost, typically with a black anodized finish to provide additional radiant heating dissipation. The heatsink is firmly attached to the solid state relay.

How do solid state relay heatsinks work?

Heatsinks have vertical fins through which hot air flows, normally assisted by a fan. The fins provide a large surface area that cools the air. Once cooled, the air is expelled into the environment, so ventilation is crucial. A heatsink's performance is measured by its thermal impedance (resistance to the transfer of thermal energy). A lower numerical thermal impedance rating means more efficient heat transfer.

When choosing solid state relay heatsinks you should bear in mind coordinating size, form factor, thermal impedance rating and mounting.


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Description Price Accessory Type For Use With Series Mounting Type
RS Stock No. 922-5249
BrandRS PRO
TWD267.00
Each
units
Thermal Pad WG Series Solid State Relays - -
RS Stock No. 703-4546
Mfr. Part No.HS202
TWD1,120.00
Each
units
Heatsink - - Panel Mount
RS Stock No. 307-3253
Mfr. Part No.WF115100
BrandCelduc
TWD2,695.00
Each
units
Heatsink SC Series, SG Series, SGT Series, SO Series, SVT Series - Chassis, DIN Rail
RS Stock No. 917-4866
Mfr. Part No.WF031200
BrandCelduc
TWD7,879.00
Each
units
Heatsink SP/3P Solid Sate Relay - DIN Rail
RS Stock No. 703-4561
Mfr. Part No.HS501DR
TWD559.00
Each
units
Heatsink 1 x single or dual SSR - DIN Rail
RS Stock No. 775-3170
Mfr. Part No.RHS37A
TWD799.00
Each
units
Heatsink RGS Series - DIN Rail
RS Stock No. 499-0941
Mfr. Part No.WF070000
BrandCelduc
TWD2,654.00
Each
units
Heatsink SC Series, SG Series, SGT Series, SO Series, SVT Series - DIN Rail
RS Stock No. 922-5227
BrandRS PRO
TWD1,558.00
Each
units
Heatsink WG Series Solid State Relays - Snap-On Rail Mount
RS Stock No. 922-5239
BrandRS PRO
TWD2,894.00
Each
units
Heatsink WG Series Solid State Relays - Snap-On Rail Mount
RS Stock No. 922-5236
BrandRS PRO
TWD2,004.00
Each
units
Heatsink WG Series Solid State Relays - Snap-On Rail Mount
RS Stock No. 123-3855
Mfr. Part No.HS259DR-RSC1
TWD1,100.00
Each
units
Heatsink NOVA22 Panel Mount SSR, NOVA22 SSRs - DIN Rail
RS Stock No. 922-2117
Mfr. Part No.SSRHP02
TWD5,160.00
Each
units
Heatsink Panel Mount Solid State Relay - Panel Mount
RS Stock No. 701-8834
Mfr. Part No.HS103DR
TWD2,753.00
Each
units
Heatsink - - DIN Rail
RS Stock No. 703-4558
Mfr. Part No.HS072
TWD1,519.00
Each
units
Heatsink 1 or 2 single or dual SSR - Panel Mount
RS Stock No. 922-5233
BrandRS PRO
TWD4,543.00
Each
units
Heatsink WG Series Solid State Relays - Snap-On Rail Mount
RS Stock No. 922-2127
Mfr. Part No.SSRHP25
TWD843.00
Each
units
Heatsink Panel Mount Solid State Relay - Panel Mount