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2N637A PNP Transistor

The 2N637A is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2N637A transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N637A transistor symbol shows an arrow from the emitter into the base. This means that the current flows from emitter to collector terminal.

Circuit diagram symbol of the 2N637A transistor as follows.

Circuit diagram symbol of the 2N637A transistor

2N637A Transistor Specification

Transistor Code 2N637A
Transistor Type BJT
Transistor Polarity PNP
Transistor Material Germanium(GE)
Package TO3
Collector Power Dissipation (Maximum) PC 60W
Collector-Base Voltage (Maximum) VCB 70V
Collector-Emitter Voltage (Maximum) VCE 70V
Collector Current (Maximum) IC 5A
Operating Junction Temperature (Maximum) TJ 90°C
Forward Current Transfer Ratio (hFE Value) 30
Transition Frequency FT 0.5MHz

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