The SPA01B-05 is a 1W isolated module DC/DC converter with built-in EMI filter without external components. It accepts 18 to 36 VDC input and offers output voltage 5V. This converter has short circuit and overload protection. Dimensions of this converter are: 0.69" L x 0.31" W x 0.44" H (17.4mm x 7.8mm x 11.1mm). Operating temperature range is from -40°C to 90°C (with derating).