GS121D PNP Transistor

The GS121D is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the GS121D transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The GS121D transistor symbol shows an arrow from the emitter into the base. This means that the current flows from emitter to collector terminal.

Circuit diagram symbol of the GS121D transistor as follows.

GS121D Transistor Specification

Transistor Code		GS121D
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Germanium(GE)
Package		TO39
Collector Power Dissipation (Maximum)	PC	0.15W
Collector-Base Voltage (Maximum)	VCB	20V
Collector Current (Maximum)	IC	0.1A
Operating Junction Temperature (Maximum)	TJ	90°C
Forward Current Transfer Ratio (hFE Value)		90

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