Wurth Elektronik PCB LAN Ethernet Transformer, 85 °C 16.2 mm, -40 °C 13.5mm

RS Stock No.:: 134-9188
Mfr. Part No.:: 74990101212
Brand:: Wurth Elektronik

Wurth Elektronik PCB LAN Ethernet Transformer, 85 °C 16.2 mm, -40 °C 13.5mm

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Subtotal (1 tube of 30 units)*

Kr. 1 989,18

(exc. VAT)

Kr. 2 486,46

(inc. VAT)

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Units	Per unit	Per Tube*
30 - 60	Kr. 66,306	Kr. 1 989,18
90 +	Kr. 57,288	Kr. 1 718,64

*price indicative

RS Stock No.:: 134-9188
Mfr. Part No.:: 74990101212
Brand:: Wurth Elektronik

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Wurth Elektronik
	Product Type	LAN Ethernet Transformer
	Number of Outputs	1
	Insertion Loss	-1dB
	Mount Type	PCB
	Length	16.2mm
	Inductance	350μH
	Width	13.5mm
	Minimum Operating Temperature	-40°C
	Maximum Operating Temperature	85°C
	Standards/Approvals	IEEE 802.3u
	Maximum Operating Frequency	100MHz
	Minimum Operating Frequency	1MHz
	Turns Ratio	1:1
	Termination Type	Solder

	Select all
	Brand Wurth Elektronik
	Product Type LAN Ethernet Transformer
	Number of Outputs 1
	Insertion Loss -1dB
	Mount Type PCB
	Length 16.2mm
	Inductance 350μH
	Width 13.5mm
	Minimum Operating Temperature -40°C
	Maximum Operating Temperature 85°C
	Standards/Approvals IEEE 802.3u
	Maximum Operating Frequency 100MHz
	Minimum Operating Frequency 1MHz
	Turns Ratio 1:1
	Termination Type Solder

COO (Country of Origin):: CN

Wurth Elektronik LAN Ethernet Transformer, 350μH Inductance, 1:1 Turns Ratio - 74990101212

This LAN Ethernet Transformer provides magnetic isolation and signal conditioning for network interfaces on PCB‑mounted designs. It operates across a wide high‑frequency range suitable for IEEE 802.3u environments, offering a single‑output configuration and solder termination for straightforward assembly. The component is intended for applications requiring controlled insertion loss and robust temperature tolerance.

Features and Benefits:

• 1MHz to 100MHz frequency range supports high‑frequency Ethernet signalling
• -1dB insertion loss preserves signal integrity during transmission
• 350 μH inductance reduces common‑mode noise for cleaner links
• 1:1 turns ratio maintains balanced transmission for differential pairs
• Solder termination enables reliable PCB connection under vibration

Applications

• Suitable for integration into switch and router PHY interfaces
• Used with magnetics modules in Ethernet port designs
• Ideal for board‑level isolation in industrial Ethernet equipment
• Can be used for retrofit of 100BASE‑TX network interfaces

What operating temperature limits apply to this component?

It is rated to function from -40°C up to 85°C.

How is the part terminated for PCB mounting?

It uses solder termination designed for direct PCB attachment.

What standards environment is this intended for?

It is suitable for applications conforming to IEEE 802.3u signalling.

How many outputs does the transformer provide?

The device offers a single‑output configuration.