2SC4257 NPN Transistor

The 2SC4257 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2SC4257 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SC4257 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 2SC4257 transistor as follows.

2SC4257 Transistor Specification

Transistor Code		2SC4257
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO220
Collector Power Dissipation (Maximum)	PC	1.75W
Collector-Base Voltage (Maximum)	VCB	1500V
Collector-Emitter Voltage (Maximum)	VCE	1200V
Collector Current (Maximum)	IC	0.03A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		10
Transition Frequency	FT	6MHz
Collector Capacitance	CC	2pF

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