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BUL138 NPN Transistor

The BUL138 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BUL138 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BUL138 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 BUL138 transistor as follows.

Circuit diagram symbol of the BUL138 transistor

BUL138 Transistor Specification

Transistor Code BUL138
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO220
Collector Power Dissipation (Maximum) PC 80W
Collector-Base Voltage (Maximum) VCB 800V
Collector-Emitter Voltage (Maximum) VCE 400V
Collector Current (Maximum) IC 5A
Operating Junction Temperature (Maximum) TJ 150°C
Emitter-Base Voltage (Maximum) VEB 9V
Forward Current Transfer Ratio (hFE Value) 8

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