2N3791 Temperature-Power Derating Curve [2N3792]
PNP High Power Transistor. Package, TO-3 Metal Can.
Temperature Derating Curve, 2N3791 Transistor
Use the Graph to determine maximum operating power [wattage] based on device case temperature. Derating Curves Transistors
The graph details the maximum allowable power dissipation with increasing ambient temperature. Maximum operational power dissipation is achievable at 25C. The not-to-exceed junction temperature is 2000C
Refer to MIL-PRF-19500/379H; Semiconductor Device, Transistor, PNP, Silicon, High-Power, Types 2N3791 and 2N3792, JAN, JANTX, JANTXV, and JANS, [TO-3]
2N3791 Maximum Operational Ratings:
Collector Emitter Voltage = 60 volts dc
Collector Base Voltage = 60 volts dc
Emitter Base Voltage = 7 volts dc
Power Dissipation 250C = 5 Watts
Operating Temperature = -65 to +2000C
Refer to the data sheet for additional electrical characteristics.
Heat Sink Manufacturers, Listing of Transistor Manufacturers
Case mount. A type of package which provides a method of readily attaching one surface of the
semiconductor device to a heat dissipater to achieve thermal management of the case temperature. The Collector is electrically connected to the case in a TO-3 package.
Replacement Information; MIL-PRF-19500/621 is a TO-254 package version of MIL-PRF-19500/379, which is a TO-3 package version. The military 2N7369 contains the same die as the military 2N3792. The MIL-PRF-19500/621 is preferred over the MIL-PRF-19500/379 whenever interchangeability is not a problem. For new design use 2N7369. The 2N3792 is inactive for new design. Transistor types 2N3789 and 2N3790 were deleted by MIL-PRF-19500/379A(ER).
How to Derate; Derating Guidelines for Electronic Components
