TN4257 Datasheet. Specs and Replacement

Type Designator: TN4257  📄📄 

Material of Transistor: Si

Polarity: NPN

Absolute Maximum Ratings

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

Electrical Characteristics

Transition Frequency (ft): 700 MHz

Collector Capacitance (Cc): 3 pF

Forward Current Transfer Ratio (hFE), MIN: 30

Noise Figure, dB: -

Package: TO92

 TN4257 Substitution

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TN4257 datasheet

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Detailed specifications: TN4146, TN4234, TN4235, TN4236, TN4248, TN4249, TN4250, TN4250A, A1015, TN4258, TN4258A, TN4274, TN4275, TN4314, TN4354, TN4355, TN4356

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