2N257B Specs and Replacement

Type Designator: 2N257B

Material of Transistor: Ge

Polarity: PNP

Absolute Maximum Ratings

Maximum Collector Power Dissipation (Pc): 45 W

Maximum Collector-Base Voltage |Vcb|: 40 V

Maximum Collector-Emitter Voltage |Vce|: 35 V

Maximum Emitter-Base Voltage |Veb|: 20 V

Maximum Collector Current |Ic max|: 3 A

Max. Operating Junction Temperature (Tj): 85 °C

Electrical Characteristics

Transition Frequency (ft): 0.1 MHz

Forward Current Transfer Ratio (hFE), MIN: 50

Noise Figure, dB: -

Package: TO3

 2N257B Substitution

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2N257B datasheet

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Detailed specifications: 2N2567-5, 2N2568, 2N2569, 2N256A, 2N257, 2N2570, 2N2571, 2N2572, 2SC2655, 2N257G, 2N257W, 2N258, 2N2580, 2N2580M, 2N2581, 2N2582, 2N2583

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