FA2519-AL Overview
Document 549 PoE Transformer For National Semiconductor LM5071 & LM5072 PD Controllers The FA2519-AL surface mount flyback transformer was developed specifically for National Semiconductor LM5071 and LM5072 Powered Devices Controllers in 13 Watt Power over Ethernet (PoE) applications. It is designed to operate at 250 kHz with a PoE input voltage of 36 72 Volts. It can also accept a 12 V input from auxiliary sources.