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MPS4121 PNP Transistor

The MPS4121 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the MPS4121 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The MPS4121 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 MPS4121 transistor as follows.

Circuit diagram symbol of the MPS4121 transistor

MPS4121 Transistor Specification

Transistor Code MPS4121
Transistor Type BJT
Transistor Polarity PNP
Transistor Material Silicon(SI)
Package TO92
Collector Power Dissipation (Maximum) PC 0.35W
Collector-Base Voltage (Maximum) VCB 40V
Collector-Emitter Voltage (Maximum) VCE 40V
Collector Current (Maximum) IC 0.1A
Operating Junction Temperature (Maximum) TJ 150°C
Emitter-Base Voltage (Maximum) VEB 5V
Forward Current Transfer Ratio (hFE Value) 70
Transition Frequency FT 450MHz
Collector Capacitance CC 5pF

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