This part is a kind of semiconductor called 2N3819.

Function of this product has N-Channel RF Amplifier.

Manufacturers : NTE

Image and pinout :

Some of the text within the PDF file :

2N3819 N−Channel RF Amplifier TO−92 Type Package Description: The 2N3819 is a N−Channel RF Amplifier transistor designed for RF amplifier and mixer applications operating up to 450Mhz, and for analog switching requiring low capacitance. Absolute Maximum Ratings: (TC = +25C, Note 1 unless otherwise specified) Drain−Gate Voltage, VDG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V Gate−Source Voltage, VGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −25V Drain Current, ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA Forward Gate Current, IGF . [ ... ]

2N3819 PDF Datasheet Download