Transformer Part Audit

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I’ll audit the part metadata, source the official manufacturer documentation if needed, then verify the symbol, footprint, and pin descriptions and correct the Datasheet property if it is missing.

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Audit completed against Würth Elektronik’s official 750310742 datasheet.
  • Identity: MPN and 10-pin EP13 package are correct. The description matches the WE‑PoE+ 25 W flyback transformer.
  • Key specs: 38 µH ±10%, 2:1:1.1 turns ratio, 3.5 A typical saturation current, 0.47 µH maximum leakage, 1500 VAC primary/secondary isolation, −40 to +125 °C.
  • Symbol: Pin count and winding assignments are consistent: N1 = 5–6, N2 = 3–2, N3 = 10–1; pins 4 and 7–9 are unused.
  • Datasheet: A datasheet URL was already populated, so no property update was required. Official source: https://www.we-online.com/components/products/datasheet/750310742.pdf
  • Flagged metadata: Part Type is incorrectly/generalized as Ethernet rather than Transformer, package metadata is not explicitly populated, and all pin types are Unspecified with no pin descriptions.
  • Flagged footprint: Pad placement is close but not an exact transcription—2.48 mm versus 2.50 mm pitch and 1.143 mm versus 1.27 mm pad width. The footprint should be corrected to the manufacturer’s recommended land pattern before production.
Fix footprint and metadata
Correct footprint
Update pin metadata
Fix part properties
Run validation
3
Pin Number
3
09
Pin Number
7
05
Pin Number
1
10_
Pin Number
6
8
Pin Number
8
04
Pin Number
2
2
Pin Number
4
6
Pin Number
10
1
Pin Number
5
7
Pin Number
9
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750310742

750310742 thumbnail
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

Properties

750310742

Würth

Ethernet

we-online.com/catalog/datasheet/750310742.pdf

T

parametric-v1

Pricing & Availability

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