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. 922-5236
BrandRS PRO
$82.14
Each
units
Heatsink WG Series Solid State Relays - Snap-On Rail Mount
RS Stock No. 922-5239
BrandRS PRO
$116.89
Each
units
Heatsink WG Series Solid State Relays - Snap-On Rail Mount
RS Stock No. 922-5249
BrandRS PRO
$13.63
Each
units
Thermal Pad WG Series Solid State Relays - -
RS Stock No. 922-5227
BrandRS PRO
$86.35
Each
units
Heatsink WG Series Solid State Relays - Snap-On Rail Mount
RS Stock No. 922-5242
BrandRS PRO
$100.38
Each
units
Heatsink WG Series Solid State Relays - Snap-On Rail Mount
RS Stock No. 922-5233
BrandRS PRO
$200.76
Each
units
Heatsink WG Series Solid State Relays - Snap-On Rail Mount
RS Stock No. 903-2952
Mfr. Part No.KHS-150A
BrandKudom
$52.03
Each
units
Heatsink Single Phase SSR, Two Phase SSR - Panel Mount
RS Stock No. 703-4546
Mfr. Part No.HS202
$47.39
Each
units
Heatsink - - Panel Mount
RS Stock No. 701-8856
Mfr. Part No.HS201DR
$52.28
Each
units
Heatsink - - DIN Rail
RS Stock No. 123-3855
Mfr. Part No.HS259DR-RSC1
$32.46
Each
units
Heatsink NOVA22 Panel Mount SSR, NOVA22 SSRs - DIN Rail
RS Stock No. 776-7713
Mfr. Part No.WF108110
BrandCelduc
$63.13
Each
units
Heatsink SC Relay, SC Series, SO Relay - Chassis, DIN Rail
RS Stock No. 917-4879
Mfr. Part No.WF042000
BrandCelduc
$20.29
Each
units
Heatsink SKL10510 Solid State Relay - DIN Rail
RS Stock No. 922-2117
Mfr. Part No.SSRHP02
$259.79
Each
units
Heatsink Panel Mount Solid State Relay - Panel Mount
RS Stock No. 703-4570
Mfr. Part No.HS122DR
$78.30
Each
units
Heatsink 1 or 2 single or dual SSR - DIN Rail
RS Stock No. 903-2955
Mfr. Part No.KHS-1BD
BrandKudom
$33.36
Each
units
Heatsink Single Phase SSR - DIN Rail
RS Stock No. 922-2120
Mfr. Part No.SSRHP10
$80.98
Each
units
Heatsink Panel Mount Solid State Relay - Panel Mount
RS Stock No. 703-4561
Mfr. Part No.HS501DR
$23.61
Each
units
Heatsink 1 x single or dual SSR - DIN Rail
RS Stock No. 703-4555
Mfr. Part No.HS103
$109.96
Each
units
Heatsink - - Panel Mount
RS Stock No. 917-4866
Mfr. Part No.WF031200
BrandCelduc
$320.01
Each
units
Heatsink SP/3P Solid Sate Relay - DIN Rail
RS Stock No. 171-9092
Mfr. Part No.WF121000
BrandCelduc
$66.60
Each
units
Heatsink SC Series, SG Series, SGT Series, SO Series, SVT Series - Chassis, DIN Rail
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