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IT121 NPN Transistor

The IT121 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the IT121 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The IT121 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 IT121 transistor as follows.

Circuit diagram symbol of the IT121 transistor

IT121 Transistor Specification

Transistor Code IT121
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO77
Collector Power Dissipation (Maximum) PC 0.3W
Collector-Base Voltage (Maximum) VCB 45V
Collector-Emitter Voltage (Maximum) VCE 45V
Collector Current (Maximum) IC 0.05A
Operating Junction Temperature (Maximum) TJ 150°C
Emitter-Base Voltage (Maximum) VEB 5V
Forward Current Transfer Ratio (hFE Value) 100
Transition Frequency FT 180MHz
Collector Capacitance CC 2pF

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