This part is a kind of semiconductor called 9971GM.

Function of this product has AP9971GM.

Manufacturers : Advanced Power Electronics

Image and pinout :

Some of the text within the PDF file :

AP9971GM RoHS-compliant Product Advanced Power Electronics Corp. ▼ Low On-resistance ▼ Single Drive Requirement ▼ Surface Mount Package D1 G2 S2 D2 D2 D1 N-CHANNEL ENHANCEMENT MODE POWER MOSFET BVDSS RDS(ON) ID 60V 50mΩ 5A D2 SO-8 S1 G1 Description Advanced Power MOSFETs from APEC provide the designer with the best combination of fast switching, ruggedized device design, ultra low on-resistance and cost-effectiveness. G1 D1 G2 S1 S2 Absolute Maximum Ratings Symbol VDS VGS ID@TA=25℃ Parameter Drain-Source Voltage Gate-Source Voltage Continuous Drain Current3, VGS @ 10V Continuous Drain Current , VGS @ 10V Pulsed Drain Current 1,2 3 Rating 60 +25 5 3.2 30 2 0.016 -55 to 150 -55 to 150 Units V V A A A W W/ ℃ ℃ ℃ ID@TA=100℃ IDM PD@TA=25℃ TS [ ... ]

9971GM PDF Datasheet Download