This part is a kind of semiconductor called BF244A.

Function of this product has JFET VHF/UHF AMPLIFIER.

Manufacturers : Motorola

Image and pinout :

Some of the text within the PDF file :

BF244,A,B,C CASE 29-02, STYLE 22 TO-92 (TO-226AA) MAXIMUM RATINGS Rating Drain-Source Voltage Drain-Gate Voltage Gate-Source Voltage Drain Current Forward Gate Current @Total Device Dissipation Ta = 25°C Derate above 25°C Storage Channel Temperature Range Symbol VDS vdg vgs id 'G(f) PD Tstq Value ±30 30 30 100 10 360 2.88 -65 to +150 Unit Vdc Vdc Vdc mAdc mAdc mW mW/°C °C ELECTRICAL CHARACTERISTICS

BF244A PDF Datasheet Download