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HM28S NPN Transistor

The HM28S is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the HM28S transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The HM28S 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 HM28S transistor as follows.

Circuit diagram symbol of the HM28S transistor

HM28S Transistor Specification

Transistor Code HM28S
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO92
Collector Power Dissipation (Maximum) PC 0.85W
Collector-Base Voltage (Maximum) VCB 40V
Collector-Emitter Voltage (Maximum) VCE 20V
Collector Current (Maximum) IC 1.25A
Operating Junction Temperature (Maximum) TJ 150°C
Emitter-Base Voltage (Maximum) VEB 6V
Forward Current Transfer Ratio (hFE Value) 300

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