HEAT SINK CALCULATOR
CUI Devices' heat sink calculator can be used to quickly solve for a device's junction temperature, power dissipation, and heat sink-to-ambient thermal impedance ratings. To use the calculator, enter your known values into the appropriate fields, click calculate, and the converted junction temperature, power dissipation, or thermal impedance heat sink-to-ambient value will be shown. These calculated values can then be used to specify the proper heat sink in a design. For more information on heat sink design, view our heat sink selection tutorial.
Search CUI Devices' full line of Heat Sinks ▶- TJ = Junction Temperature (°C)
- P = Power Dissipated (W)
- RJ-C = Thermal Impedance Junction-to-Case (°C/Watt)
- RC-S = Thermal Impedance Case-to-Sink (°C/Watt)
- RS-A = Thermal Impedance Sink-to-Ambient (°C/Watt)
- TA = Ambient Temperature (°C)
Thermal Impedance
Sink-to-Ambient
Junction
Temperature
Power
Dissipated
6405 SW Rosewood St, Ste C
Lake Oswego, OR 97035
1-877-323-3576
株式会社シーユーアイ・ジャパン
〒108-0071
東京都港区白金台2-11-8
永昌高輪台ビル8F
Tel: 03-6721-9396 Fax: 03-6721-9397
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