All Transistors. PN4257 Datasheet

 

PN4257 Datasheet and Replacement


   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
 

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PN4257 Datasheet (PDF)

 9.1. Size:294K  fairchild semi
 pn4250a.pdf pdf_icon

PN4257

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

 9.2. Size:294K  fairchild semi
 pn4250.pdf pdf_icon

PN4257

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: PN4140 , PN4141 , PN4142 , PN4143 , PN4248 , PN4249 , PN4250 , PN4250A , 2N4401 , PN4258 , PN4258A , PN4274 , PN4275 , PN4354 , PN4355 , PN4356 , PN4401 .

Keywords - PN4257 transistor datasheet

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