Question

A thyristor has maximum allowable junction temperature of 110° C and the ambient temperature is 40°C, If the maximum internal power dissipation is 50 W, the thermal resistance is

a.

2° C/W

b.

1.4° C/W

c.

0.7°C/W

d.

2.2° C/W

Answer: (b).1.4° C/W

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Q. A thyristor has maximum allowable junction temperature of 110° C and the ambient temperature is 40°C, If the maximum internal power dissipation is 50 W, the thermal resistance is

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