This part is a kind of semiconductor called K1341.

Function of this product has 2SK1341.

Manufacturers : Hitachi Semiconductor

Image and pinout :

Some of the text within the PDF file :

2SK1341 Silicon N-Channel MOS FET Application High speed power switching Features • Low on-resistance • High speed switching • Low drive current • No secondary breakdown • Suitable for switching regulator and DC-DC converter Outline TO-3P D G1 2 3 1. Gate 2. Drain (Flange) S 3. Source 2SK1341 Absolute Maximum Ratings (Ta = 25°C) Item Drain to source voltage Gate to source voltage Drain current Drain peak current Body to drain diode reverse drain current Channel dissipation Channel temperature Storage temperature Notes: 1. PW ≤ 10 µs, duty cycle ≤ 1% 2. Value at TC = 25°C Symbol VDSS VGSS ID I *1 D(pulse) I DR Pch*2 Tch Tstg Ratings 900 ±30 6 15 6 100 150 –55 to +150 Unit V V A A A W °C °C 2 2SK1341 Electrical Characteristics (Ta = 25°C) Item Symbol Min Dr [ ... ]

K1341 PDF Datasheet Download