# 750310742 (Component) ## Description Power over Ethernet (PoE) Flyback Transformer – Surface-mount flyback transformer optimized for Power over Ethernet (PoE) powered devices, isolated DC-DC converters, industrial Ethernet equipment, IP cameras, wireless access points, IoT gateways, and embedded networking applications. Part of the Würth Elektronik WE-PoE+ Series, it is specifically designed for use with the Analog Devices LT4276 PoE PD controller and supports IEEE 802.3at (PoE+) power conversion. Features 38 µH primary inductance (100 kHz), 37 V to 57 V primary input, 12.5 V auxiliary winding at 30 mA, 1,500 Vrms isolation voltage, and operation over a 250 kHz to 400 kHz switching frequency. Built in a compact surface-mount package (13.46 × 15.00 × 12.70 mm), it is specified for −40°C to +125°C operation, making it ideal for high-efficiency isolated PoE power supplies in demanding industrial and embedded environments. #WurthElektronik #750310742 #WEPoEPlus #PoETransformer #FlybackTransformer #PowerOverEthernet #IEEE8023at #LT4276 #DCDCConverter #IndustrialEthernet #EmbeddedPower #EmbeddedSystems ## Component Details - **Owner:** silicon-yard - **Created:** 8/4/2026 - **Last Updated:** 8/4/2026 - **Visibility:** Public - **Manufacturer Name:** Würth - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/17a9870ec66d75e1edbaa2d13fd9bab90f315908c9a201b9c9c69a36598096ec.pdf - **Symbol Style:** parametric-v1 - **Part Type:** Ethernet - **Manufacturer Part Number:** 750310742 - **Part Type:** Other - **Manufacturer:** Würth - **MPN:** 750310742 - **Mount Type:** Surface Mount - **Package / Case Code:** TO - **Pin Count:** 10 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | 05 | | | 2 | 04 | | | 3 | 3 | | | 4 | 2 | | | 5 | 1 | | | 6 | 10_ | | | 7 | 09 | | | 8 | 8 | | | 9 | 7 | | | 10 | 6 | | --- *Generated from [https://www.flux.ai/silicon-yard/750310742](https://www.flux.ai/silicon-yard/750310742)*