This part is a kind of semiconductor called 2N40.

Function of this product has N-CHANNEL POWER MOSFET.

Manufacturers : Unisonic Technologies

Image and pinout :

Some of the text within the PDF file :

2N40 UNISONIC TECHNOLOGIES CO., LTD Preliminary 2A, 400V N-CHANNEL POWER MOSFET „ DESCRIPTION The UTC 2N40 is an N-channel mode power MOSFET using UTC’ s advanced technology to provide customers with a minimum on-state resistance, stable off–state characteristics and superior switching performance. It also can withstand high energy pulse in the avalanche. The UTC 2N40 is usually used in general purpose switching applications, motor control circuits and switched mode power supply. „ FEATURES * High switching speed * RDS(ON)=3.4Ω @ VGS=10V * 100% avalanche tested „ SYMBOL 2.Drain Power MOSFET 1.Gate 3.Source „ ORDERING INFORMATION Note: Ordering Number Lead Free Halogen Free 2N40L-TA3-T 2N40G-TA3-T Pin Assignment: G: Gate D: Drain S: Source Package TO-220 Pin Assign [ ... ]

2N40 PDF Datasheet Download