This part is a kind of semiconductor called AL60A-048L-050F20.
Function of this product has 120 Watts.
Manufacturers : Astec America
Image and pinout :

Some of the text within the PDF file :
Astec Integrated Power 120 Watts AL60A Total Power: Input Voltages: No. of Outputs: 120 Watts 12V, 24V or 48V Single, Dual Electrical Specs Input Input Range Efficiency 180 to 400 VDC or 36 to 72 VDC 83% typical (5V @ 20A); 85% typical (12V @ 9A) Output Load Regulation Line Regulation Noise/Ripple Remote sense Output Voltage Adjust Range Transient Response Current Share Accuracy Overvoltage Protection Current Limit 0.2% typical down to no load 0.1% typical 75 mV typical (output below 5V) 2% typical (output 5V and over) Up to 0.5V ±10% of nominal output 4% typical deviation with 250µs recovery (25-75% full load) 5% typical 125% nominal Vo 110% Io max Special Features • High efficiency - up to 86% • 500 KHz fixed frequency • 100°C baseplate operating tempe [ ... ]
AL60A-048L-050F20 PDF Datasheet Download
