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BSY91 NPN Transistor

The BSY91 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BSY91 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BSY91 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 BSY91 transistor as follows.

Circuit diagram symbol of the BSY91 transistor

BSY91 Transistor Specification

Transistor Code BSY91
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO39
Collector Power Dissipation (Maximum) PC 0.8W
Collector-Base Voltage (Maximum) VCB 40V
Collector-Emitter Voltage (Maximum) VCE 25V
Collector Current (Maximum) IC 0.3A
Operating Junction Temperature (Maximum) TJ 200°C
Emitter-Base Voltage (Maximum) VEB 5V
Forward Current Transfer Ratio (hFE Value) 80
Transition Frequency FT 50MHz
Collector Capacitance CC 25pF

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