Chapter 12

A \(160-\mathrm{W}\) silicon power transistor operated with a heat sink \(\left(\theta_{S A}=1.5^{\circ} \mathrm{C} / \mathrm{W}\right)\) has \(\theta_{J C}=0.5^{\circ} \mathrm{C} / \mathrm{W}\) and a mounting insulation of \(\theta_{C S}=0.8^{\circ} \mathrm{C} / \mathrm{W}\). What maximum power can be handled by the transistor at an ambient temperature of \(80^{\circ} \mathrm{C}\) ? (The junction temperature should not exceed \(200^{\circ} \mathrm{C}\).)