... 3. PFC:67KHz PWM:134KHz 4.12V switching power supply 5.SP-240-48 MODELSP-240-5 SP ... .5V29.5 ~ 35V34.7 ~ 41V57.6 ~ 67.2VProtection type : Shut down o/p voltage, re-power on to recoverOVER TEMPERATURE90 ... oC 5 (5V,7.5V), 85 oC5 (12V,15V, ... 24V,30V,48V) (TSW1 : detect on heatsink of power transistor)Protection type ...