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Product Detailed Parameters
- Description：XFMR POE DC/DC CONV 65UH SMD
- Series：WE-PoE+
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：For DC/DC Converters
- Applications：Power Over Ethernet (PoE)
- Intended Chipset：-
- Chipset Manufacturer：-
- Voltage - Primary：36 ~ 72V
- Voltage - Auxiliary：15V @ 20mA
- Voltage - Isolation：1500Vrms
- Inductance @ Frequency：65µH @ 100kHz
- Frequency：250 ~ 400kHz
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Size / Dimension：-
- Height - Seated (Max)：0.455" (11.56mm)
- Footprint：0.910" L x 1.145" W (23.11mm x 29.08mm)
- Style：-
- Grade：-
- Qualification：-
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Overview
The Würth Elektronik 749119450 is a Power over Ethernet (PoE) transformer from the WE-PoE+ series, designed for board-mount applications. It features a single primary winding rated at 36 V to 72 V and a single secondary winding rated at 5 V. The component provides 1500 Vrms isolation and supports switching frequencies between 250 kHz and 400 kHz. With an inductance of 65 µH at 100 kHz and a power rating of 30 W, it is suitable for DC/DC converter topologies. The device measures 23.11 mm in length, 29.08 mm in width, and 11.43 mm in height, operating within a temperature range of -40°C to 125°C.
Feature Summary
- Provides robust 1500 Vrms electrical isolation for safety compliance in PoE systems.
- Engineered for high-frequency operation between 250 kHz and 400 kHz to support efficient SMPS designs.
- Features a compact surface-mount form factor optimized for space-constrained PCB layouts.
Applications
- Power over Ethernet (PoE) powered devices
- DC/DC converter modules
- Switching Mode Power Supply (SMPS) transformers
Procurement Notes
Verify that the specific order matches the manufacturer part number 749119450 to ensure correct electrical specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to assembly. Cross-reference datasheet revisions to ensure design compatibility with latest manufacturing standards.
Selection Notes
Select this component when a 30 W PoE transformer with 1500 Vrms isolation is required. Ensure the input voltage range of 36 V to 72 V aligns with the system architecture. Verify that the 65 µH inductance value meets the specific DC/DC converter design criteria.
Part Context
This component belongs to the WE-PoE+ series by Würth Elektronik, which specializes in Power over Ethernet transformers. The series focuses on providing reliable magnetic solutions for networked devices requiring integrated power delivery alongside data transmission capabilities.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult official distributor databases or manufacturer cross-reference tools for potential alternatives if this specific model is unavailable.
