2N4851-2N4853
High-reliability discrete products and engineering services since 1977
PN UNIJUNCTION TRANSISTOR
FEATUR...
2N4851-2N4853
High-reliability discrete products and engineering services since 1977
PN UNIJUNCTION
TRANSISTOR
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
RMS power dissipation
RMS emitter current Peak-pulse emitter current Emitter reverse voltage Interbase voltage Operating junction temperature range Storage temperature range
Symbol
PD
Ie ie VB2E VB2B1 TJ Tstg
Value
300
50 1.5 30 35 -65 to +125 -65 to +200
Unit
mW
mA Amp Volts Volts
°C °C
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified)
Rating
Part number
Symbol
Min
Typ
Max Unit
Intrinsic standoff ratio (VB2B1 = 10 V)
2N4851 2N4852, 2N4853
η 0.56 - 0.75 0.70 - 0.85
Interbase resistance (VB2B1 = 3 V, IE = 0)
RBB 4.7 - 9.1 kΩ
Emitter reverse current (VB2E = 30 V)
2N4851, 2N4852 2N4853
IE...