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Is it correct to think of the thermal resistance as the slope of PT-Tc?

Latest Updated:09/02/2013

Question:

Is it correct to think of the thermal resistance as the slope of PT-Tc in the datasheet, which is (150℃ - 25℃) ÷ 35 W = 3.57 ℃/W?

Answer:

(150℃ - 25℃) ÷ 35 W = 3.57 ℃/W is the correct method of calculating thermal resistance.
Please also refer to the graph TRANSIENT THERMAL RESISTANCE vs. PULSE WIDTH on page 3 of the datasheet for the thermal resistance of the 2SK3714.

This article is written based on not recommended products.

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