2SD121H NPN Transistor

The 2SD121H is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2SD121H transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SD121H 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 2SD121H transistor as follows.

2SD121H Transistor Specification

Transistor Code		2SD121H
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO39
Collector Power Dissipation (Maximum)	PC	1W
Collector-Base Voltage (Maximum)	VCB	150V
Collector-Emitter Voltage (Maximum)	VCE	100V
Collector Current (Maximum)	IC	1.5A
Operating Junction Temperature (Maximum)	TJ	150°C
Forward Current Transfer Ratio (hFE Value)		15
Transition Frequency	FT	1MHz

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