2N2484UBC Temperature-Power Derating Curve
NPN Silicon Amplifier Transistor. Package, TO-18 Metal Can [UA, UB, UBC].

2N2484 Surface Mount Package
Use the Graph to determine how much to derate power [wattage] based on ambient temperature. The maximum junction temperature is 2000C.
The point of the graph is to keep the junction temperature below the allowed maximum. Also refer to How to Interpret Transistor Derating Curves.
Transistor Derating Curves
Temperature derating is a standard design practice for electrical engineers.
Refer to MIL-PRF-19500/376H; Semiconductor Device, Transistor, NPN, Silicon, Low-Power, Types 2N2484, 2N2484UA, 2N2484UB, 2N2484UBC, JAN, JANTX, JANTXV, JANS, JANSM, JANSD, JANSP, JANSL, JANSR, JANSF, JANSG, JANSH JANHCA, JANHCB, JANKCA, JANKCB, JANKCM, JANKCD, JANKCP, JANKCL, JANKCR, JANKCF, JANKCG, and JANKCH, [UB, UBC packages]
Listing of Transistor Manufacturers

2N2484 UBC Pin Locations
How to Derate; Guideline for Derating Electronic Components









