This part is a kind of semiconductor called DTC144ES3.

Function of this product has General Purpose PNP Digital Transistors.

Manufacturers : Cystech Electonics

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CYStech Electronics Corp. General Purpose PNP Digital Transistors (Built-in Resistors) Spec. No. : C272S3 Issued Date : 2002.06.01 Revised Date : 2002.11.02 Page No. : 1/4 DTA144ES3 Features • Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see equivalent circuit). • The bias resistors consist of thin-film resistors with complete isolation to allow negative biasing of the input. They also have the advantage of almost completely eliminating parasitic effects. • Only the on/off conditions need to be set for operation, making device design easy. • Complements the DTC144ES3 Equivalent Circuit DTA144ES3 SOT-323 R1=47kΩ , R2=47 kΩ IN(B) : Base OUT(C) : Collector GND(E) : Emitter Absolute Ma [ ... ]

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