PN4257 Datasheet, Equivalent, Cross Reference Search
Type Designator: PN4257
Material of Transistor: Si
Polarity: NPN
Maximum Collector Power Dissipation (Pc): 0.35 W
Maximum Collector-Base Voltage |Vcb|: 12 V
Maximum Collector-Emitter Voltage |Vce|: 12 V
Maximum Emitter-Base Voltage |Veb|: 4 V
Maximum Collector Current |Ic max|: 0.1 A
Max. Operating Junction Temperature (Tj): 150 °C
Transition Frequency (ft): 700 MHz
Collector Capacitance (Cc): 3 pF
Forward Current Transfer Ratio (hFE), MIN: 30
Noise Figure, dB: -
Package: TO92
PN4257 Transistor Equivalent Substitute - Cross-Reference Search
PN4257 Datasheet (PDF)
pn4250a.pdf
Discrete POWER & SignalTechnologiesPN4250AC TO-92BEPNP General Purpose AmplifierThis device is designed for use as general purpose amplifiersand switches requiring collector currents to 300 mA. Sourcedfrom Process 68. See PN200 for characteristics.Absolute Maximum Ratings* TA = 25C unless otherwise notedSymbol Parameter Value UnitsV Collector-Emitter Voltage 60 VCEO
pn4250.pdf
Discrete POWER & SignalTechnologiesPN4250C TO-92BEPNP General Purpose AmplifierThis device is designed for use as general purpose amplifiersand switches requiring collector currents to 300 mA. Sourcedfrom Process 68. See PN200 for characteristics.Absolute Maximum Ratings* TA = 25C unless otherwise notedSymbol Parameter Value UnitsV Collector-Emitter Voltage 40 VCEO
Datasheet: 2SA1803O , 2SA1803R , 2SA1804 , 2SA1804O , 2SA1804R , 2SA1805 , 2SA1805O , 2SA1805R , D209L , 2SA181 , 2SA1810 , 2SA1810B , 2SA1810C , 2SA1811 , 2SA1815 , 2SA1815-3 , 2SA1815-4 .
History: 2N3588
