EN-60950-1. Derate output when operating temperature above +71°C. MTBF to MIL-HDBK 217F (+25°C). Stk numbers 706-3922 and 706-3957 have fixed output voltages. R78AAxx-0.5SMD Series. Replacement for R-78Axx-0.5SMD series Non-isolated High efficiency up to 97% Adjustable output voltage Wide input voltage range Thermal shutdown and continuous short circuit protection Remote On/Off control UL94V-0 package material SMD 10 pin package