This part is a kind of semiconductor called MTP1013C3.

Function of this product has -20V P-CHANNEL Enhancement Mode MOSFET.

Manufacturers : CYStech Electronics

Image and pinout :

Some of the text within the PDF file :

CYStech Electronics Corp. -20V P-CHANNEL Enhancement Mode MOSFET Spec. No. : C698C3 Issued Date : 2012.07.06 Revised Date : 2012.10.05 Page No. : 1/ 8 MTP1013C3 Features BVDSS ID RDSON@VGS=-4.5V, ID=-500mA RDSON@VGS=-2.5V, ID=-300mA RDSON@VGS=-1.8V, ID=-150mA -20V -500mA 0.63Ω(typ) 1.1Ω(typ) 1.7Ω(typ) • Very low level gate drive requirements allowing direct operation in 3V circuits. VGS(th)<1.2V. • Compact industrial standard SOT-523 surface mount package. • Pb-free package. Equivalent Circuit MTP1013C3 Outline SOT-523 D G：Gate S：Source D：Drain G S Absolute Maximum Ratings (Tj=25°C, unless otherwise noted) Parameter Drain-Source Voltage Gate-Source Voltage Continuous Drain Current @ TA=25°C, VGS=-4.5V Continuous Drain Current @ TA=70°C, VGS=-4.5V Pulsed Drain C [ ... ]

MTP1013C3 PDF Datasheet Download