Wurth Elektronik Surface LAN Ethernet Transformer, 85 °C 18.29 mm, -40 °C 14.7mm 8.8 mm

RS stock no.:: 172-5429
Mfr. Part No.:: 7490220122
Manufacturer:: Wurth Elektronik

Wurth Elektronik Surface LAN Ethernet Transformer, 85 °C 18.29 mm, -40 °C 14.7mm 8.8 mm

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Subtotal (1 reel of 290 units)*

R 27 617,57

(exc. VAT)

R 31 760,22

(inc. VAT)

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Shipping from 04 February 2027

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Units	Per unit	Per Reel*
290 +	R 95.233	R 27,617.57

*price indicative

RS stock no.:: 172-5429
Mfr. Part No.:: 7490220122
Manufacturer:: Wurth Elektronik

Specification

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Wurth Elektronik
	Number of Outputs	1
	Product Type	LAN Ethernet Transformer
	Insertion Loss	-1dB
	Mount Type	Surface
	Depth	8.8mm
	Length	18.29mm
	Width	14.7mm
	Inductance	350μH
	Minimum Operating Temperature	-40°C
	Maximum Operating Temperature	85°C
	Series	WE-LAN
	Turns Ratio	1:1
	Standards/Approvals	IEEE 802.3at, IEEE 802.3ab, IEEE 802.3u, DAP Black per UL 94 V-0, IEE 802.3bt, IEEE 802.3af

	Select all
	Brand Wurth Elektronik
	Number of Outputs 1
	Product Type LAN Ethernet Transformer
	Insertion Loss -1dB
	Mount Type Surface
	Depth 8.8mm
	Length 18.29mm
	Width 14.7mm
	Inductance 350μH
	Minimum Operating Temperature -40°C
	Maximum Operating Temperature 85°C
	Series WE-LAN
	Turns Ratio 1:1
	Standards/Approvals IEEE 802.3at, IEEE 802.3ab, IEEE 802.3u, DAP Black per UL 94 V-0, IEE 802.3bt, IEEE 802.3af

COO (Country of Origin):: CN

Wurth Elektronik WE-LAN Series LAN Ethernet Transformer, 350μH Inductance, 1:1 Turns Ratio - 7490220122

This LAN Ethernet transformer provides common-mode choking and signal coupling for network interfaces in equipment requiring power delivery over data lines. It is designed for surface mounting and supports industry Ethernet speed and PoE standards across typical industrial temperature ranges. The device's construction conforms to flame-retardant DAP black material requirements and maintains low insertion loss to preserve signal integrity in powered and unpowered links.

Features and Benefits:

• 1:1 turns ratio reduces amplitude distortion for balanced signalling
• -1dB insertion loss preserves signal fidelity at high data rates
• 350μH inductance suppresses common-mode noise on transmit pairs
• Surface-mount assembly enables Compact PCB integration
• -40 to 85°C range maintains operation in wide temperature environments

Applications

• Suitable for PoE switches complying with IEEE 802.3at requirements
• Ideal for gigabit links meeting IEEE 802.3ab specifications
• Used with legacy Fast Ethernet systems following IEEE 802.3u standards
• Can be used for PoE deployment under IEEE 802.3af power rules
• Suitable for PoE++ installations aligned to IEEE 802.3bt demands

What material standard governs the external housing?

The component uses DAP black material rated to UL94V-0 for flame retardancy.

How many isolated outputs does it provide?

It provides a single output winding suited to typical magnetics arrangements.

What is the device's performance impact on link transmission?

It exhibits an insertion loss of -1dB which minimises attenuation on Ethernet signals.

Which operating temperatures will it tolerate?

It operates between -40 to 85°C for use in varied thermal environments.