2N Series General Purpose Transistor TO 92 Package Model:2N3904 6 Pin Package Model:32GB 100MB s 6 Pin Package The 300W 20A DC DC Step down Adjustable Constant Current Module can be used to get adjustable output voltage ranges from 1 Polarity Ic (max) Vceo (max) Pd (max) hFE Range fT (typ) Notes 2N3904 NPN 200 mA 40 V 625 mW 100–300 300 MHz Very common small signal NPN 2N3906 PNP 200 mA 40 V 625 mW 100–300 300 MHz Complement to 2N3904 2N2222 (PN2222) NPN 600–800 mA 40 V 500 mW 100–300 150–300 MHz Popular general purpose switch 2N2907A PNP 600 mA 60 V 600 mW 100–300 200 MHz Complement to 2N2222 2N4401 NPN 600 mA 40 V 625 mW 100–300 250 MHz Higher current NPN 2N4403 PNP 600 mA 40 V 625 mW 100–300 250 MHz Complement to 2N4401 2N3704 NPN 500 mA 30 V 300 mW 30–150 100 MHz General purpose NPN 2N3703 PNP 200 mA 30 V 300 mW 30–150 100 MHz Complement to 2N3704 2N5401 PNP 600 mA 150 V 625 mW 80–200 100 MHz High voltage PNP 2N5551 NPN 600 mA 160 V 625 mW 80–200 100 MHz High voltage NPN The 2N Series General Purpose Transistors in TO 92 package are versatile and widely used in low power switching and amplification circuits