This part is a kind of semiconductor called AM1001-9R.

Function of this product has 50 Watt DC-DC and AC-DC Converters.

Manufacturers : Power-One

Image and pinout :

Some of the text within the PDF file :

® 39 1.54" 8 TE 111 4.37" 3U 168 6.6" M Series Data Sheet 50 Watt DC-DC and AC-DC Converters Features • Extremly wide operating input voltage ranges from 8 to 385 VDC and 85 to 264 VAC, 47 to 440 Hz • RoHS lead-solder exemption compliant • Class I equipment • Input over- and undervoltage lockout • 1, 2, or 3 individually isolated and controlled outputs up to 64 V • Outputs: SELV, no load, overload, short-circuit proof, rectangular current limiting characteristic • Adjustable output voltages with remote on/off • Immunity according to IEC/EN 61000-4-2, -3, -4, -5, -6 • Emissions according to EN 55011/55022 • PCBs protected by lacquer • Very high reliability • Battery charger models available Safety according to IEC/EN 60950-1 and UL/CSA 60950-1 Description The M [ ... ]

AM1001-9R PDF Datasheet Download