This part is a kind of semiconductor called 2SK2171.

Function of this product has N-Channel Junction Silicon FET.

Manufacturers : Sanyo Semicon Device

Image and pinout :

Some of the text within the PDF file :

Ordering number:ENN4871 N-Channel Junction Silicon FET 2SK2171 High-Frequency, Low-Frequency Amplifier Analog Switch Applications Features · Adoption of FBET process. · Large | yfs |. · Small Ciss. · High PD allowable power dissipation. Package Dimensions unit:mm 2125 [2SK2171] 4.5 1.6 1.5 1.0 2.5 4.25max Specifications 0.4 0.5 32 1.5 3.0 1 0.75 0.4 1 : Source 2 : Gate 3 : Drain SANYO : PCP (Bottom View) Absolute Maximum Ratings at Ta = 25˚C Parameter Drain-to-Source Voltage Gate-to-Drain Voltage Gate Current Drain Current Symbol VDSX VGDS IG ID Allowable Power Dissipation PD Junction Temperature Storage Temperature Tj Tstg Conditions Mounted on ceramic board (250mm2× 0.8mm) Ratings 40 –40 10 100 400 800 150 –55 to +150 Unit V V mA mA mW mW ˚C ˚C Electrica [ ... ]

2SK2171 PDF Datasheet Download