This part is a kind of semiconductor called MT4953.

Function of this product has P-Channel Enhancement Mode Field Effect Transistor.

Manufacturers : Mos-tech Semiconductor

Image and pinout :

Some of the text within the PDF file :

茂钿半導體股份有限公司 Mos-Tech Semiconductor Co.,LTD. P-Channel Enhancement Mode Field Effect Transistor MT4953 FEATURES ● Super high dense cell design for low RDS(ON) ● Rugged and reliable ● Simple drive requirement ● SOP-8 package PRODUCT SUMMARY VDSS ID RDS(ON) (mΩ) Typ -30V -5.3A 46@ VGS=-10V 78 @ VGS=-4.5V NOTE：The MT4953 is available in a lead-free package S1 S2 G1 G2 D1 D2 ABSOLUTE MAXIMUM RATINGS（TA=25℃ unless otherwise noted） Parameter Drain-Source Voltage Gate-Source Voltage Drain Current-Continuousª@Tj=125℃ Symbol VDS VGS ID Limit -30 ±20 -5.3 - Pulse d b IDM -24 Drain-source Diode Forward Currentª Maximum Power Dissipationª Operating Junction and Storage Temperature Range IS PD TJ,TSTG -1.7 2.5 -55 to 150 Unit V V A A A W �� [ ... ]

MT4953 PDF Datasheet Download