This part is a kind of semiconductor called 2N4401.

Function of this product has SMALL SIGNAL TRANSISTORS NPN.

Manufacturers : General Semiconductor

Image and pinout :

Some of the text within the PDF file :

ADVANCED INFORMATION ADVANCED INFORMATION 2N4401 SMALL SIGNAL TRANSISTORS (NPN) TO-92 0.181 (4.6) min. 0.492 (12.5) 0.181 (4.6) 0.142 (3.6) FEATURES ¨ NPN Silicon Epitaxial Planar Transistor for switching and amplifier applications. ¨ As complementary type, the PNP transistor 2N4403 is recommended. ¨ On special request, this transistor is also manufactured in the pin configuration TO-18. ¨ This transistor is also available in the SOT-23 case with the type designation MMBT4401 max. Æ 0.022 (0.55) 0.098 (2.5) E C B MECHANICAL DATA Case: TO-92 Plastic Package Weight: approx. 0.18g Dimensions in inches and (millimeters) MAXIMUM RATINGS AND THERMAL CHARACTERISTICS Ratings at 25¡C ambient temperature unless otherwise specified SYMBOL VALUE UNIT Collector-Base Voltage Collecto [ ... ]

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