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BD159 NPN Transistor

The BD159 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BD159 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BD159 transistor symbol shows an arrow from the base into the emitter. This means that the current flows from collector terminal to emitter terminal.

Circuit diagram symbol of the BD159 transistor as follows.

Circuit diagram symbol of the BD159 transistor

BD159 Transistor Specification

Transistor Code BD159
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO126
Collector Power Dissipation (Maximum) PC 20W
Collector-Base Voltage (Maximum) VCB 375V
Collector-Emitter Voltage (Maximum) VCE 350V
Collector Current (Maximum) IC 0.5A
Operating Junction Temperature (Maximum) TJ 150°C
Emitter-Base Voltage (Maximum) VEB 5V
Forward Current Transfer Ratio (hFE Value) 30

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