... -in testFixed switching frequency at 83KHzLow costHigh reliability♦100W DC-DC Power Supply SPECIFICATION: Model No. Input Output R&N Effi ... , 0~20A100mV75%SD-100B-1219V~36V12V, 0~8.5A120mV77%SD-100B-2419V~36V24V, 0~4.2A150mV81 ... 72V5V, 0~20A100mV76%SD-100C-1236V~72V12V, 0~8.5A120mV80%SD-100C-2436V~72V24V, 0~4.2A150mV83 ... refer to EN61000-4-2,3,4,6,8;ENV50204,EN55024,light industry level,criteria AOTHERS ...