2N4948, 2N4949
High-reliability discrete products and engineering services since 1977
PN UNIJUNCTION
TRANSISTORS
FEATURES Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level.
Add “HR” suffix to base part number.
Available as non-RoHS (Sn/Pb plating), standard, and as RoHS by adding “-PBF” suffix.
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
RMS power dissipation(1)
PD 360 mW
RMS emitter current Peak pulse emitter current(2)
Ie 50 mA ie 1.
0 Amp
Emitter reverse voltage
VB2E 30 Volts
Storage temperature range
Tstg -65 to 200 °C
Note 1: Derate 2.
4mW/°C increase in ambient temperature.
Total power dissipation must be limited by external circuitry.
Interba...