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. 903-2952
Mfr. Part No.KHS-150A
BrandKudom
HK$335.79
Each
units
Heatsink Single Phase SSR, Two Phase SSR - Panel Mount
RS Stock No. 701-8856
Mfr. Part No.HS201DR
HK$224.37
Each
units
Heatsink - - DIN Rail
RS Stock No. 800-2966
Mfr. Part No.077.25
BrandFinder
HK$329.75
Each
units
Heatsink 77.25 Series 77 Series DIN Rail
RS Stock No. 307-3253
Mfr. Part No.WF115100
BrandCelduc
HK$628.41
Each
units
Heatsink SC Series, SG Series, SGT Series, SO Series, SVT Series - Chassis, DIN Rail
RS Stock No. 922-2127
Mfr. Part No.SSRHP25
HK$172.48
Each
units
Heatsink Panel Mount Solid State Relay - Panel Mount
RS Stock No. 703-4552
Mfr. Part No.HS053
HK$706.67
Each
units
Heatsink 1, 1 x 3 phase SSR, 2 or 3 single or dual SSR - Panel Mount
RS Stock No. 703-4561
Mfr. Part No.HS501DR
HK$121.56
Each
units
Heatsink 1 x single or dual SSR - DIN Rail
RS Stock No. 703-4570
Mfr. Part No.HS122DR
HK$312.69
Each
units
Heatsink 1 or 2 single or dual SSR - DIN Rail
RS Stock No. 922-2111
Mfr. Part No.SSRHP05
HK$478.94
Each
units
Heatsink Panel Mount Solid State Relay - Panel Mount
RS Stock No. 171-9092
Mfr. Part No.WF121000
BrandCelduc
HK$388.07
Each
units
Heatsink SC Series, SG Series, SGT Series, SO Series, SVT Series - Chassis, DIN Rail
RS Stock No. 917-4879
Mfr. Part No.WF042000
BrandCelduc
HK$102.10
Each
units
Heatsink SKL10510 Solid State Relay - DIN Rail
RS Stock No. 857-7242
Mfr. Part No.RHS45B
HK$408.39
Each
units
Heatsink Assembly 1-Phase SSR - DIN Rail
RS Stock No. 703-4558
Mfr. Part No.HS072
HK$258.13
Each
units
Heatsink 1 or 2 single or dual SSR - Panel Mount
RS Stock No. 917-4866
Mfr. Part No.WF031200
BrandCelduc
HK$1,530.01
Each
units
Heatsink SP/3P Solid Sate Relay - DIN Rail
RS Stock No. 922-5227
BrandRS PRO
HK$327.10
Each
units
Heatsink WG Series Solid State Relays - Snap-On Rail Mount
RS Stock No. 922-2114
Mfr. Part No.SSRHD10
HK$354.50
Each
units
Heatsink Panel Mount Solid State Relay - Panel Mount
RS Stock No. 703-4577
Mfr. Part No.HS202DR
HK$258.13
Each
units
Heatsink - - DIN Rail
RS Stock No. 917-4872
Mfr. Part No.WF112100
BrandCelduc
HK$164.53
Each
units
Heatsink 22.5 mm SA and SU Solid State Relay - DIN Rail
RS Stock No. 701-8837
Mfr. Part No.HS151DR
HK$212.37
Each
units
Heatsink Crydom SSR - DIN Rail
RS Stock No. 922-5233
BrandRS PRO
HK$1,028.00
Each
units
Heatsink WG Series Solid State Relays - Snap-On Rail Mount
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