Audio Transformers / Signal Transformers

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Signal Transformers

Würth Elektronik Signal Transformers include LAN, analog, and data communication transformers. These transformers were developed for power over ethernet (PoE), power line communications (PLC), position sensors, DSL, and Internet of Things (IoT). Würth Elektronik Signal Transformers are ideal for routers, switches, building automation, lighting controls, and ultrasonic distance sensors.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Termination Style	Frequency Range	Inductance	Isolation Voltage	Minimum Operating Temperature	Maximum Operating Temperature	Number of Channels	Package/Case	Length	Width	Height	Series	Packaging
Audio Transformers / Signal Transformers WE-LAN AQ SMD Tfrmr 10/100/1000 Base-T 749020310 Wurth Elektronik 1: $7.00 7,399In Stock	Mfr. Part No. 749020310 Mouser Part No 710-749020310	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN AQ SMD Tfrmr 10/100/1000 Base-T Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	7,399In Stock	Cut Tape $7.00 $6.14 $5.48 Reel $4.73 $3.84 MouseReel Available	Min.: 1 Mult.: 1 : 400	LAN Transformers	LAN	SMD/SMT	500 kHz to 100 MHz	350 uH	1.501 kVAC	- 40 C	+ 85 C	Single	17.53 mm x 14.6 mm x 4.5 mm	17.53 mm	16.51 mm	4.5 mm	WE-LANAQ	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MID-PLC ST8500 1 mH 750510231 Wurth Elektronik 1: $2.78 4,609In Stock	Mfr. Part No. 750510231 Mouser Part No 710-750510231	Wurth Elektronik	Audio Transformers / Signal Transformers MID-PLC ST8500 1 mH Learn More about Wurth Elektronik wurth electronics mid plc	Datasheet	4,609In Stock	$2.78 $2.51 $2.42 $2.41 View $2.21 $2.17 $2.09 $2.03 $1.89	Min.: 1 Mult.: 1	Signal Transformers	PLC	Through Hole		1 mH	2 kVAC	- 20 C	+ 80 C	Single		13.97 mm	13.97 mm	13.46 mm	MID-PLC	Tray
Audio Transformers / Signal Transformers WE-PLC EE13/7/4 (EF12.6) THT 750510476 Wurth Elektronik 1: $5.25 407In Stock 1,040Expected 16/04/2027	Mfr. Part No. 750510476 Mouser Part No 710-750510476	Wurth Elektronik	Audio Transformers / Signal Transformers WE-PLC EE13/7/4 (EF12.6) THT Learn More about Wurth Elektronik wurth we plc transformers	Datasheet	407In Stock 1,040Expected 16/04/2027	$5.25 $4.74 $4.55 $4.41 View $4.22 $4.09 $3.96 $3.84	Min.: 1 Mult.: 1	Signal Transformers	PLC	Through Hole		870 uH	4 kVAC	- 40 C	+ 125 C	Single		13.72 mm	19.8 mm	10.16 mm	WE-PLC	Tray
Audio Transformers / Signal Transformers WE-LAN 10/100/1000 1Port ETR Base T SMD 7490220122 Wurth Elektronik 1: $6.98 6,411In Stock 3,480On Order	Mfr. Part No. 7490220122 Mouser Part No 710-7490220122	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10/100/1000 1Port ETR Base T SMD Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	6,411In Stock 3,480On Order	Cut Tape $6.98 $6.73 $6.32 $5.95 Reel $5.30 MouseReel Available	Min.: 1 Mult.: 1 : 290	LAN Transformers	LAN	SMD/SMT	1 MHz to 100 MHz	350 uH	1.5 kVAC	- 40 C	+ 105 C	Quad		18.29 mm	16 mm	8.8 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 1Port Trnsfmr 10/100 Base-T SMD 7490100161A Wurth Elektronik / Midcom 1: $3.54 916In Stock	Mfr. Part No. 7490100161A Mouser Part No 710-7490100161A	Wurth Elektronik / Midcom	Audio Transformers / Signal Transformers WE-LAN 1Port Trnsfmr 10/100 Base-T SMD Learn More about Wurth Elektronik / Midcom wurth WE LAN transformers	Datasheet	916In Stock	Cut Tape $3.54 $3.19 $3.07 $2.97 Reel $2.65 View $2.88 $2.76 $2.52 $2.46 MouseReel Available	Min.: 1 Mult.: 1 : 600	LAN Transformers	LAN	SMD/SMT	100 kHz to 100 MHz	350 uH	1.5 kVAC	- 40 C	+ 125 C	Single		12.7 mm	9.4 mm	6.35 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10/100 Base-T SMD Trnsfmr 1 Port 749010310 Wurth Elektronik / Midcom 1: $5.40 1,488In Stock	Mfr. Part No. 749010310 Mouser Part No 710-749010310	Wurth Elektronik / Midcom	Audio Transformers / Signal Transformers WE-LAN 10/100 Base-T SMD Trnsfmr 1 Port Learn More about Wurth Elektronik / Midcom wurth WE LAN transformers	Datasheet	1,488In Stock	Cut Tape $5.40 $4.86 $4.32 $3.96 Reel $3.07 MouseReel Available	Min.: 1 Mult.: 1 : 800	LAN Transformers	LAN	SMD/SMT	500 kHz to 100 MHz	300 uH	1.5 kVAC	- 40 C	+ 85 C	Single		12.7 mm	8.67 mm	4 mm	WE-LANAQ	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN DP83822 10/100 Base-T 1Port SMD Transfrme 7490120110 Wurth Elektronik / Midcom 1: $5.12 1,030In Stock 3,900On Order	Mfr. Part No. 7490120110 Mouser Part No 710-7490120110	Wurth Elektronik / Midcom	Audio Transformers / Signal Transformers WE-LAN DP83822 10/100 Base-T 1Port SMD Transfrme Learn More about Wurth Elektronik / Midcom wurth WE LAN transformers	Datasheet	1,030In Stock 3,900On Order On Order Ship Dates Mfr. No: 7490120110 Stock: 1,030 Can Dispatch Immediately On Order: 1,950 Expected 12/10/2026 1,950 Expected 13/01/2027 Factory Lead Time: 14 Weeks	Cut Tape $5.12 $4.74 $4.31 $3.91 Reel $3.38 $3.07 MouseReel Available	Min.: 1 Mult.: 1 : 650	LAN Transformers	LAN	SMD/SMT	100 kHz to 100 MHz	350 uH	1.5 kVAC	- 40 C	+ 85 C	Single		12.7 mm	9.52 mm	5.6 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10/100 Base-T SMD 1 Port Transfrmr 749013011A Wurth Elektronik / Midcom 1: $3.93 3,118In Stock 3,000Expected 30/10/2026	Mfr. Part No. 749013011A Mouser Part No 710-749013011A	Wurth Elektronik / Midcom	Audio Transformers / Signal Transformers WE-LAN 10/100 Base-T SMD 1 Port Transfrmr Learn More about Wurth Elektronik / Midcom wurth WE LAN transformers	Datasheet	3,118In Stock 3,000Expected 30/10/2026	Cut Tape $3.93 $3.64 $3.34 $3.10 Reel $2.32 MouseReel Available	Min.: 1 Mult.: 1 : 600	LAN Transformers	LAN	SMD/SMT	1 MHz to 1 GHz	350 uH	1.5 kVAC	- 40 C	+ 105 C	Single		12.7 mm	9.4 mm	6.35 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 1Port SMD Trnsfmr 749014010 Wurth Elektronik 1: $7.79 913In Stock	Mfr. Part No. 749014010 Mouser Part No 710-749014010	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 1Port SMD Trnsfmr Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	913In Stock	Cut Tape $7.79 $7.52 $7.10 $6.68 Reel $6.26 $6.05 MouseReel Available	Min.: 1 Mult.: 1 : 300	LAN Transformers	LAN	SMD/SMT	1 MHz to 100 MHz	350 uH	4.5 kVAC	0 C	+ 70 C	Quad	17.1 mm x 14.75 mm x 8.4 mm	17.1 mm	15.34 mm	8.4 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10/100 Base T 1Port SMD Trnsfmr 7490140112 Wurth Elektronik 1: $16.71 221In Stock	Mfr. Part No. 7490140112 Mouser Part No 710-7490140112	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10/100 Base T 1Port SMD Trnsfmr Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	221In Stock	Cut Tape $16.71 $16.12 $15.22 $14.33 Reel $13.21 $12.33 MouseReel Available	Min.: 1 Mult.: 1 : 200	LAN Transformers	LAN	SMD/SMT		350 uH	6 kVAC	- 40 C	+ 85 C	Dual		24.55 mm	18.25 mm	10.85 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN SMD Extended 1 Port 10/100 Base-T 749014012 Wurth Elektronik 1: $12.24 303In Stock	Mfr. Part No. 749014012 Mouser Part No 710-749014012	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN SMD Extended 1 Port 10/100 Base-T Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	303In Stock	Cut Tape $12.24 $11.82 $11.15 $9.99 Reel $9.35 $9.04 MouseReel Available	Min.: 1 Mult.: 1 : 250	LAN Transformers	LAN	SMD/SMT	500 kHz to 100 MHz	350 uH	4 kVAC	0 C	+ 70 C	Single	24.55 mm x 17 mm x 10.85 mm	24.55 mm	18.25 mm	10.85 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10/100/1000 1Port ETR Base T SMD 7490220120 Wurth Elektronik 1: $5.94 1,903In Stock 3,200On Order	Mfr. Part No. 7490220120 Mouser Part No 710-7490220120	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10/100/1000 1Port ETR Base T SMD Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	1,903In Stock 3,200On Order On Order Ship Dates Mfr. No: 7490220120 Stock: 1,903 Can Dispatch Immediately On Order: 1,200 Expected 16/10/2026 2,000 Expected 29/01/2027 Factory Lead Time: 14 Weeks	Cut Tape $5.94 $5.73 $5.38 $5.07 Reel $4.55 MouseReel Available	Min.: 1 Mult.: 1 : 400	LAN Transformers	LAN	SMD/SMT	1 MHz to 100 MHz	350 uH	1.5 kVAC	- 40 C	+ 105 C	Quad		18.29 mm	16 mm	6.15 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10/100/1000 1Port ETR Base T SMD 7490220121 Wurth Elektronik / Midcom 1: $6.47 1,526In Stock 1,280Expected 13/01/2027	Mfr. Part No. 7490220121 Mouser Part No 710-7490220121	Wurth Elektronik / Midcom	Audio Transformers / Signal Transformers WE-LAN 10/100/1000 1Port ETR Base T SMD Learn More about Wurth Elektronik / Midcom wurth WE LAN transformers	Datasheet	1,526In Stock 1,280Expected 13/01/2027	Cut Tape $6.47 $6.24 $5.86 $5.51 Reel $4.91 MouseReel Available	Min.: 1 Mult.: 1 : 320	LAN Transformers	LAN	SMD/SMT	1 MHz to 100 MHz	350 uH	1.5 kVAC	- 40 C	+ 105 C	Quad		18.29 mm	16 mm	7.2 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN SMD Transfrmr 10/100/1000Base-T 7490220123 Wurth Elektronik 1: $6.47 2,362In Stock 1,740Expected 20/11/2026	Mfr. Part No. 7490220123 Mouser Part No 710-7490220123	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN SMD Transfrmr 10/100/1000Base-T Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	2,362In Stock 1,740Expected 20/11/2026	Cut Tape $6.47 $6.24 $5.86 $5.51 Reel $4.91 MouseReel Available	Min.: 1 Mult.: 1 : 290	LAN Transformers	LAN	SMD/SMT	1 MHz to 100 MHz	180 uH	1.5 kVAC	- 40 C	+ 105 C	Quad		18.29 mm	16 mm	8.8 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port ETR Trnsfmr 749050017 Wurth Elektronik 1: $13.13 495In Stock 450Expected 30/10/2026	Mfr. Part No. 749050017 Mouser Part No 710-749050017	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port ETR Trnsfmr Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	495In Stock 450Expected 30/10/2026	Cut Tape $13.13 $10.90 $9.47 $8.56 Reel $8.13 MouseReel Available	Min.: 1 Mult.: 1 : 450	LAN Transformers	LAN	SMD/SMT	100 kHz to 500 MHz	120 uH	1.5 kVAC	- 40 C	+ 85 C	1 Channel		13.97 mm	15.11 mm	6.6 mm	WE-LAN 10G	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port 4PPoE Trnsfmr 749052050 Wurth Elektronik 1: $15.71 849In Stock 870Expected 06/11/2026	Mfr. Part No. 749052050 Mouser Part No 710-749052050	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port 4PPoE Trnsfmr Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	849In Stock 870Expected 06/11/2026	Cut Tape $15.71 $13.13 $11.37 $10.32 Reel $9.80 MouseReel Available	Min.: 1 Mult.: 1 : 290	LAN Transformers	Module	SMD/SMT	100 kHz to 500 MHz	180 uH	1.5 kVAC	0 C	+ 70 C	Single		18.29 mm	16 mm	8.8 mm	WE-LAN 10G	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MID-PLC ST8500 1 mH - 750510730 Wurth Elektronik 1: $4.27 1,076In Stock 1,260Expected 24/12/2026	Mfr. Part No. 750510730 Mouser Part No 710-750510730	Wurth Elektronik	Audio Transformers / Signal Transformers MID-PLC ST8500 1 mH - Learn More about Wurth Elektronik wurth electronics mid plc	Datasheet	1,076In Stock 1,260Expected 24/12/2026	Cut Tape $4.27 $3.86 $3.71 $3.59 Reel $2.91 View $2.82 $2.70 $2.66 $2.51 MouseReel Available	Min.: 1 Mult.: 1 : 140	Signal Transformers		SMD/SMT		1 mH	1.5 kVAC	- 20 C	+ 80 C	Single		13.97 mm	15.4 mm	13.2 mm	MID-PLC	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port ETR Trnsfmr 749050018 Wurth Elektronik 1: $13.13 539In Stock	Mfr. Part No. 749050018 Mouser Part No 710-749050018	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port ETR Trnsfmr Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	539In Stock	Cut Tape $13.13 $10.90 $9.47 $8.56 Reel $8.13 MouseReel Available	Min.: 1 Mult.: 1 : 450	LAN Transformers	Module	SMD/SMT	100 kHz to 500 MHz	120 uH	1.5 kVAC	- 40 C	+ 85 C	Single		13.97 mm	15.11 mm	6.6 mm	WE-LAN 10G	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-AMT Trnsfmr 30uH .350Ohm 750082154 Wurth Elektronik 1: $0.79 1,423In Stock 6,000Expected 24/12/2026	Mfr. Part No. 750082154 Mouser Part No 710-750082154	Wurth Elektronik	Audio Transformers / Signal Transformers WE-AMT Trnsfmr 30uH .350Ohm Learn More about Wurth Elektronik wurth electronics signal transformers	Datasheet	1,423In Stock 6,000Expected 24/12/2026	Cut Tape $0.79 $0.786 $0.736 $0.663 $0.589 Reel $0.589 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Signal Transformers		SMD/SMT		30 uH	3.75 kVAC			Single	4.39 mm x 9.14 mm x 1.98 mm	4.39 mm	9.14 mm	1.98 mm	MID-DAA	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MID-PLC ST7540 1 mH - 750510682 Wurth Elektronik 1: $3.64 409In Stock	Mfr. Part No. 750510682 Mouser Part No 710-750510682	Wurth Elektronik	Audio Transformers / Signal Transformers MID-PLC ST7540 1 mH - Learn More about Wurth Elektronik wurth electronics mid plc	Datasheet	409In Stock	Cut Tape $3.64 $3.29 $3.16 $3.06 Reel $2.92 View $2.83 $2.71 $2.63 $2.62 MouseReel Available	Min.: 1 Mult.: 1 : 140	Signal Transformers		SMD/SMT		1 mH	1.5 kVAC	- 20 C	+ 80 C	Single		13.97 mm	15.4 mm	13.2 mm	MID-PLC	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN Design Kit LAN Transformers 749010 Wurth Elektronik 1: $313.14 Non-Stocked Lead-Time 19 Weeks	Mfr. Part No. 749010 Mouser Part No 710-749010	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN Design Kit LAN Transformers Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	Non-Stocked Lead-Time 19 Weeks	$313.14	Min.: 1 Mult.: 1	Design Kits		SMD/SMT	500 kHz to 100 MHz	350 uH	1.5 kVAC	- 40 C	+ 85 C			12.95 mm	7.11 mm	5.33 mm	WE-LAN	Bulk
Audio Transformers / Signal Transformers WE-LAN 1Port SMD Trnsfmr 749014011 Wurth Elektronik 1: $12.25 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. 749014011 Mouser Part No 710-749014011	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 1Port SMD Trnsfmr Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape $12.25 $11.82 $11.17 $9.99 Reel $9.35 $9.04 MouseReel Available	Min.: 1 Mult.: 1 : 250	LAN Transformers	LAN	SMD/SMT		350 uH	4 kVAC	0 C	+ 70 C	Quad	24.55 mm x 18.25 mm x 10.85 mm	24.55 mm	18.25 mm	10.85 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10/100 Base-T 1Port SMD Transfrme 749014018 Wurth Elektronik 1,200: $10.50 Non-Stocked	Mfr. Part No. 749014018 Mouser Part No 710-749014018	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10/100 Base-T 1Port SMD Transfrme Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	Non-Stocked	Cut Tape $10.50	Min.: 1,200 Mult.: 300 : 300	LAN Transformers	LAN	SMD/SMT	100 kHz to 100 MHz	350 uH	4 kVAC	0 C	+ 70 C	Single		17.1 mm	15.34 mm	8.4 mm	WE-LAN	Reel
Audio Transformers / Signal Transformers WE-LAN SMD Extended 1 Port 10G Base-T 749050010U Wurth Elektronik 450: $7.75 Non-Stocked	Mfr. Part No. 749050010U Mouser Part No 710-749050010U	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN SMD Extended 1 Port 10G Base-T Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	Non-Stocked	Reel $7.75 $6.46	Min.: 450 Mult.: 450 : 450	LAN Transformers	LAN	SMD/SMT	100 kHz to 500 MHz	200 uH	1.5 kVAC	0 C	+ 70 C	1 Channel		13.97 mm	15.11 mm	6.6 mm	WE-LAN 10G	Reel
Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port 4PPoE Trnsfmr 749052011 Wurth Elektronik / Midcom 320: $8.21 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. 749052011 Mouser Part No 710-749052011	Wurth Elektronik / Midcom	Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port 4PPoE Trnsfmr Learn More about Wurth Elektronik / Midcom wurth WE LAN transformers	Datasheet	Non-Stocked Lead-Time 18 Weeks	Reel $8.21	Min.: 320 Mult.: 320 : 320	LAN Transformers	Module	SMD/SMT	100 kHz to 500 MHz	120 uH	1.5 kVAC	0 C	+ 70 C	1 Channel		18.29 mm	16 mm	7.2 mm	WE-LAN 10G	Reel

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