Because the collector is connected to the case the device may be directly attached to a heat sink to allow higher temperature operation. Use the curve to determine the amount of power derating based on case temperature. Some vendors may provide a much stricter derating, as this MIL Spec indicates 34.2mW/C for temperatures over 25C. No power reduction is required for temperatures below 25C. 2N3055 Transistor Operational Power Derating CurveÄerate the power dissipation for the 2N3055 by 0.657 W/ 0C for any operating temperature above 25 0C. 2N3055 Applications General-purpose switching, power amplifiers and audio amplifier. Package, TO-3 metal diamond shape package. 2N3055 Temperature-Power Derating Curve and linearly equation.
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