2N2604UB Temperature-Power Derating Curve [2N2605]
PNP Low Power Silicon Transistor. Package, UB [Surface Mount].

2N2604UB Temperature Derating Curve
Use the Graph to determine how much to derate power [wattage] based on ambient operational temperature. Transistor Derating Curves
Temperature derating is a standard design practice for electrical engineers.
Refer to MIL-PRF-19500/354K; Semiconductor Device, Transistor, PNP, Silicon, Low-Power, Types 2N2604, 2N2604UB, 2N2605, and 2N2605UB, JAN, JANTX, JANTXV, and JANS, JANHC, JANKC, [TO-46, UB surface mount]
2N2604UB Maximum Operational Ratings:
Collector Emitter Voltage = 60 volts dc
Collector Base Voltage = 80 volts dc
Emitter Base Voltage = 6 volts dc
Power Dissipation 250C = 400mW
Operating Temperature = -65 to +2000C
Transistor Manufacturers and vendors
TO-46 pin out; Lead 1 is Emitter, lead 2 is Base, and lead 3 is Collector.
How to Derate; Guideline for Derating Electronic Components

UB Case Package, Surface Mount Device [SMD]









