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Single Pair Ethernet Signal Transformers

Würth Elektronik Single Pair Ethernet (SPE) Signal Transformers feature the super small WE-STST series with transformers that measure only 4.7mm x 3.22mm x 2.9mm (L x W x H). These transformers are manufactured by machine and offer 1.5kV isolation voltage and 350µH open-circuit inductance (OCL) as per IEEE 802.3. The modules have an operating temperature range of -40°C to +105°C. Typical applications for Würth Elektronik WE-STST transformers include Ethernet 10/100/1000 Base-T, Ethernet 2.5/5G and 10G Base-T, SPE, ultrasonic sensors, and G.fast.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Product	Type	Termination Style	Inductance	Isolation Voltage	Minimum Operating Temperature	Maximum Operating Temperature	Number of Channels	Package / Case	Length	Width	Height	Series	Packaging
	Audio Transformers / Signal Transformers WE-STST 4532 110uH PoE 74930130 Wurth Elektronik 1: $2.569 3.802In Stock	Mfr. Part # 74930130 Mouser Part # 710-74930130	Wurth Elektronik	Audio Transformers / Signal Transformers WE-STST 4532 110uH PoE Learn More about Wurth Elektronik wurth single pair ethernet signal transformers	Datasheet	3.802In Stock	Cut Tape $2.569 $2.394 $2.295 $2.229 View Reel $1.438 $1.998 $1.899 $1.823 $1.735 $1.438 MouseReel Available	Min.: 1 Mult.: 1 : 2.000			PoE Transformers	LAN	SMD/SMT	110 uH	1.5 kV	- 40 C	+ 105 C	Single	1812 (4532 metric)	4.7 mm	3.22 mm	2.9 mm	WE-STST	Reel, Cut Tape, MouseReel
	Audio Transformers / Signal Transformers WE-STST 4532 110uH PoE+ 74930120 Wurth Elektronik 1: $2.372 1.934In Stock	Mfr. Part # 74930120 Mouser Part # 710-74930120	Wurth Elektronik	Audio Transformers / Signal Transformers WE-STST 4532 110uH PoE+ Learn More about Wurth Elektronik wurth single pair ethernet signal transformers	Datasheet	1.934In Stock	Cut Tape $2.372 $1.954 $1.603 Reel $1.515 MouseReel Available	Min.: 1 Mult.: 1 : 2.000			PoE Transformers	LAN	SMD/SMT	110 uH	1.5 kV	- 40 C	+ 105 C	Single	1812 (4532 metric)	4.7 mm	3.22 mm	2.9 mm	WE-STST	Reel, Cut Tape, MouseReel
	Audio Transformers / Signal Transformers WE-STST 4532 300uH 1Ch Sgl Pair Ether 749302010 Wurth Elektronik 1: $2.789 1.735In Stock	Mfr. Part # 749302010 Mouser Part # 710-749302010	Wurth Elektronik	Audio Transformers / Signal Transformers WE-STST 4532 300uH 1Ch Sgl Pair Ether Learn More about Wurth Elektronik wurth single pair ethernet signal transformers	Datasheet	1.735In Stock	Cut Tape $2.789 $2.668 Reel $2.525 MouseReel Available	Min.: 1 Mult.: 1 : 2.000			Signal Transformers		SMD/SMT	300 uH		- 40 C	+ 105 C	Single		4.7 mm	2.9 mm	2.9 mm	WE-STST	Reel, Cut Tape, MouseReel
	Audio Transformers / Signal Transformers WE-STST 4532 2KuH 1Ch Sgl Pair Ether 749302011 Wurth Elektronik 1: $3.030 1.851In Stock	Mfr. Part # 749302011 Mouser Part # 710-749302011	Wurth Elektronik	Audio Transformers / Signal Transformers WE-STST 4532 2KuH 1Ch Sgl Pair Ether Learn More about Wurth Elektronik wurth single pair ethernet signal transformers	Datasheet	1.851In Stock	Cut Tape $3.030 $2.899 $2.778 $2.712 $2.679 Reel $2.668 MouseReel Available	Min.: 1 Mult.: 1 : 2.000			Signal Transformers	LAN	SMD/SMT	2 mH		- 40 C	+ 105 C	Single		4.7 mm	3.22 mm	2.9 mm	WE-STST	Reel, Cut Tape, MouseReel
	Audio Transformers / Signal Transformers WE-LAN DP83822 10/100 Base-T SMT Tr ansformer 1 Port 74930000 Wurth Elektronik 1: $1.416 12.020In Stock 56.000Expected 10/9/2026	Mfr. Part # 74930000 Mouser Part # 710-74930000	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN DP83822 10/100 Base-T SMT Tr ansformer 1 Port Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	12.020In Stock 56.000Expected 10/9/2026	Cut Tape $1.416 $1.372 Reel $1.296 MouseReel Available	Min.: 1 Mult.: 1 : 2.000			Signal Transformers	LAN	SMD/SMT	350 uH		- 40 C	+ 105 C	Single		4.7 mm	3.22 mm	2.9 mm	WE-STST	Reel, Cut Tape, MouseReel
	Audio Transformers / Signal Transformers WE-STST 4532 120uH 1Ch Sgl Pair Ether 74930100 Wurth Elektronik 1: $1.702 8.167In Stock	Mfr. Part # 74930100 Mouser Part # 710-74930100	Wurth Elektronik	Audio Transformers / Signal Transformers WE-STST 4532 120uH 1Ch Sgl Pair Ether Learn More about Wurth Elektronik wurth single pair ethernet signal transformers	Datasheet	8.167In Stock	Cut Tape $1.702 $1.636 Reel $1.548 MouseReel Available	Min.: 1 Mult.: 1 : 2.000			Signal Transformers	LAN	SMD/SMT	120 uH	1.5 kV	- 40 C	+ 105 C	Single		4.7 mm	3.22 mm	2.9 mm	WE-STST	Reel, Cut Tape, MouseReel
	Audio Transformers / Signal Transformers WE-STST ADIN1110 4532 350uH PoE 74930030 Wurth Elektronik 1: $2.372 355In Stock 14.000On Order	Mfr. Part # 74930030 Mouser Part # 710-74930030	Wurth Elektronik	Audio Transformers / Signal Transformers WE-STST ADIN1110 4532 350uH PoE Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	355In Stock 14.000On Order On Order Ship Dates Mfr. #: 74930030 Stock: 355 Can Ship Immediately On Order: 6.000 Expected 10/30/2026 8.000 Expected 1/22/2027 Factory Lead-Time: 35 Weeks	Cut Tape $2.372 $1.954 $1.603 Reel $1.515 MouseReel Available	Min.: 1 Mult.: 1 : 2.000			PoE Transformers	LAN	SMD/SMT	350 uH	1.5 kV	- 40 C	+ 105 C	Single	1812 (4532 metric)	4.7 mm	3.22 mm	2.9 mm	WE-STST	Reel, Cut Tape, MouseReel