This part is a kind of semiconductor called 2SK1588.

Function of this product has N-CHANNEL MOS FET FOR SWITCHING.

Manufacturers : NEC

Image and pinout :

Some of the text within the PDF file :

DATA SHEET MOS FIELD EFFECT TRANSISTOR 2SK1588 N-CHANNEL MOSFET FOR SWITCHING DESCRIPTION The 2SK1588 is an N-channel vertical type MOSFET which can be driven by 2.5 V power supply. As the MOSFET is driven by low voltage and does not require consideration of driving current, it is suitable for appliances including VCR cameras and headphone stereos PACKAGE DRAWING (Unit: mm) 4.5 ±0.1 1.6 ±0.2 1.5 ±0.1 2.5 ±0.1 0.42 ±0.06 which need power saving. FEATURES • Directly driven by ICs having a 3 V power supply. • Low on-state resistance RDS(on)1 = 0.5 Ω MAX. (VGS = 2.5 V, ID = 1.0 A) RDS(on)2 = 0.3 Ω MAX. (VGS = 4.0 V, ID = 1.5 A) 1 0.42 ±0.06 2 3 0.47 ±0.06 1.5 TYP. 3.0 TYP. 0.8 MIN. 4.0 ±0.25 0.41 +0.03 –0.05 ORDERING INFORMATION PART NUMBER 2SK1588 PACKAGE SC-62 [ ... ]

2SK1588 PDF Datasheet Download