7491199312

$4.60

Description：XFMR POE DC/DC CONV 40UH SMD
Series：WE-PoE
Mfr：Würth Elektronik
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:a5ba3a9ab069 Category: Switching Converter, SMPS Transformers Brand: Würth Elektronik

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Product introduction

Product Detailed Parameters

Description：XFMR POE DC/DC CONV 40UH 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：LM5070, LM5071, LM5072, LTC4267, TPS23750, TPS23770
Chipset Manufacturer：-
Voltage - Primary：36 ~ 57V
Voltage - Auxiliary：-
Voltage - Isolation：1500Vrms
Inductance @ Frequency：40µH @ 100kHz
Frequency：200kHz
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Size / Dimension：0.530" L x 0.591" W (13.46mm x 15.00mm)
Height - Seated (Max)：0.500" (12.70mm)
Footprint：0.530" L x 0.713" W (13.46mm x 18.10mm)
Style：-
Grade：-
Qualification：-

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7491199312

Overview

The Würth Elektronik part number 7491199312 is a Power-Over-Ethernet (PoE) transformer designed for surface-mount technology applications. It features an ER13 core size and provides 1500Vrms isolation voltage to ensure safety and signal integrity in networked systems. The component has an inductance of 40uH and a DC resistance of 0.11ohm, operating at a frequency of 200kHz. These specifications make it suitable for integration into compact electronic designs requiring reliable PoE power delivery.

Feature Summary

Provides integrated Power-Over-Ethernet functionality for simultaneous data and power transmission
Features high-voltage isolation capability to protect downstream circuitry
Designed for surface-mount assembly to facilitate automated manufacturing processes

Applications

DC/DC converter modules
SMPS transformer implementations
Power-Over-Ethernet network interfaces

Procurement Notes

Verify the specific manufacturer datasheet to confirm mechanical dimensions and thermal characteristics before finalizing the design. Ensure that the selected footprint matches the surface-mount requirements specified by Würth Elektronik. Cross-reference the isolation ratings with system safety standards to guarantee compliance with relevant regulatory frameworks for network equipment.

Selection Notes

Select this component when a compact solution for PoE power delivery is required within space-constrained designs. The ER13 form factor offers a balance between power handling and physical size. Consider the 200kHz operating frequency and low DC resistance for efficiency optimization in switching power supply architectures where electromagnetic interference management is critical.

Part Context

This component belongs to the Würth Elektronik portfolio of magnetics and passive components. It supports the company's focus on providing complete solutions for industrial and communication applications. The product line emphasizes reliability and technical expertise, helping engineers reduce integration risks while maintaining high performance standards in modern electronic systems.