BTD1857A3 NPN Transistor

The BTD1857A3 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BTD1857A3 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BTD1857A3 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 BTD1857A3 transistor as follows.

BTD1857A3 Transistor Specification

Transistor Code		BTD1857A3
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO92
Transistor SMD Code		D1857
Collector Power Dissipation (Maximum)	PC	0.75W
Collector-Base Voltage (Maximum)	VCB	180V
Collector-Emitter Voltage (Maximum)	VCE	180V
Collector Current (Maximum)	IC	1.5A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		180
Transition Frequency	FT	140MHz
Collector Capacitance	CC	18pF

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