POE13W3X3.3-R is a 13-watt configurable flyback transformer designed for Power-over-Ethernet (PoE) and Power Delivery (PD) applications compliant with IEEE 802.3af standards. The transformer operates with an input voltage range of 29.5 V to 60.0 V, features a 250 kHz switching frequency, and provides three 3.3V outputs at 0.135A each with a primary inductance of 13 µH and secondary inductance of 0.250 O. It incorporates 1500 Vac isolation between primary and secondary windings, low leakage inductance of 0.032 µH, and a ferrite core material with an 11.0 V feedback winding at 0.10 A. The transformer is suitable for VoIP phones, wireless LAN access points, network cameras, building access systems, and other PoE-powered devices requiring reliable power conversion in temperature ranges from -40°C to +125°C.