... No.InputOutputR&NEffi.SD-25A-59.2V~18V5V, 0~5.0A100mV71%SD-25A-129.2V~18V12V, 0~2.1A120mV72%SD ... 18V24V, 0~1.1A150mV75%SD-25B-519V~36V5V, 0~5.0A100mV72%SD-25B-1219V~36V12V, 0~2.1A120mV75%SD-25B ... 36V24V, 0~1.1A150mV78%SD-25C-536V~72V5V, 0~5.0A100mV74%SD-25C-1236V~72V12V, 0~2.1A120mV78%SD-25C ... , 4, 6, 8;ENV50204, EN55024, light industry level, criteria A 5. OTHERSMTBF374.3K hrs min.(SD-25A) 365.9K hrs min ...