This part is a kind of semiconductor called K241.

Function of this product has 2SK241.

Manufacturers : Toshiba

Image and pinout :

Some of the text within the PDF file :

TOSHIBA Field Effect Transistor Silicon N Channel MOS Type 2SK241 2SK241 FM Tuner, VHF and RF Amplifier Applications Unit: mm • Low reverse transfer capacitance: Crss = 0.035 pF (typ.) • Low noise figure: NF = 1.7dB (typ.) • High power gain: GPS = 28dB (typ.) • Recommend operation voltage: 5~15 V Maximum Ratings (Ta = 25°C) Characteristics Drain-source voltage Gate-source voltage Drain current Drain power dissipation Channel temperature Storage temperature range Symbol VDS VGS ID PD Tch Tstg Rating 20 ±5 30 200 125 −55~125 Unit V V mA mW °C °C Electrical Characteristics (Ta = 25°C) JEDEC ― JEITA ― TOSHIBA 2-4E1D Weight: 0.13 g (typ.) Characteristics Symbol Test Condition Min Typ. Max Unit Gate leakage current Drain-source voltage Drain current Gate- [ ... ]

K241 PDF Datasheet Download