121-1040 NPN Transistor

The 121-1040 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 121-1040 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 121-1040 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 121-1040 transistor as follows.

121-1040 Transistor Specification

Transistor Code		121-1040
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO92
Collector Power Dissipation (Maximum)	PC	0.625W
Collector-Base Voltage (Maximum)	VCB	80V
Collector-Emitter Voltage (Maximum)	VCE	80V
Collector Current (Maximum)	IC	0.5A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	4V
Forward Current Transfer Ratio (hFE Value)		50
Transition Frequency	FT	100MHz

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