TDK-Lambda PXD DC-DC Converter, 5V dc/ 4A Output, 9, 18 V dc Input, 20W, Through Hole, +105°C Max Temp -55°C Min Temp

The TDK-Lambda PXD20-xxDxx dual output series offers 20 watts of output power from a 2 x 1 x 0.4 inch package. This series has a 2:1 wide input voltage of 9-18, 18-36, or 36-75VDC , and features 1600VDC of isolation, short-circuit , and over-voltage protection.

https://product.tdk.com/info/en/catalog/datasheets/pxd_e.pdf