Audio Transformers / Signal Transformers

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Transformers

Würth Elektronik Transformers feature power transformers for AC/DC, DC/DC, data/signal, battery management systems (BMS), and interfaces. Additional transformer solutions are gate drive and current sense transformers. These Würth power transformers feature several topologies, including flyback, push-pull, isolated buck, forward, and half-bridge. Würth Elektronik transformers are ideal for power electronics, LED lighting, signal applications, white goods, and more.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) 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 1Port Trnsfmr 10/100 Base-T SMD 7490100161A Wurth Elektronik / Midcom 1: £2.65 851In 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	851In Stock	Cut Tape £2.65 £2.39 £2.30 £2.23 Reel £1.99 View £2.17 £2.07 £1.89 £1.85 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 DP83822 10/100 Base-T 1Port SMD Transfrme 7490120110 Wurth Elektronik / Midcom 1: £3.84 2,300In Stock 1,950Expected 29/01/2027	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	2,300In Stock 1,950Expected 29/01/2027	Cut Tape £3.84 £3.56 £3.24 £2.93 Reel £2.54 £2.30 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: £2.95 2,642In Stock 2,700Expected 06/11/2026	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	2,642In Stock 2,700Expected 06/11/2026	Cut Tape £2.95 £2.73 £2.51 £2.33 Reel £1.75 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 10/100 Base T 1Port SMD Trnsfmr 7490140112 Wurth Elektronik 1: £12.55 221In Stock 200Expected 09/11/2026	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 200Expected 09/11/2026	Cut Tape £12.55 £12.10 £11.43 £10.76 Reel £9.92 £9.25 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 10/100BaseT nonPoE 350uH 2500Vrm 7490140117C Wurth Elektronik 1: £4.48 1,292In Stock	Mfr. Part No. 7490140117C Mouser Part No 710-7490140117C	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 2500Vrm Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	1,292In Stock	Cut Tape £4.48 £3.70 £3.20 Reel £3.03 MouseReel Available	Min.: 1 Mult.: 1 : 750	LAN Transformers	LAN	SMD/SMT		350 uH	2.5 kV	- 40 C	+ 105 C			12.7 mm	8.8 mm	5.7 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: £9.19 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 £9.19 £8.88 £8.37 £7.50 Reel £7.02 £6.78 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 10/100BaseT nonPoE 350uH 4500Vrm 7490140122B Wurth Elektronik 1: £6.89 661In Stock	Mfr. Part No. 7490140122B Mouser Part No 710-7490140122B	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 4500Vrm Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	661In Stock	Cut Tape £6.89 £5.73 £5.21 £4.74 Reel £4.29 MouseReel Available	Min.: 1 Mult.: 1 : 300	LAN Transformers	LAN	SMD/SMT		350 uH	4.5 kV	- 40 C	+ 85 C			17.1 mm	14.75 mm	8.4 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 4500Vrm 7490140123B Wurth Elektronik 1: £8.97 600In Stock	Mfr. Part No. 7490140123B Mouser Part No 710-7490140123B	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10/100BaseT nonPoE 350uH 4500Vrm Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	600In Stock	Cut Tape £8.97 £7.48 £6.80 £6.52 Reel £6.19 MouseReel Available	Min.: 1 Mult.: 1 : 300	LAN Transformers	LAN	SMD/SMT		350 uH	4.5 kV	- 40 C	+ 85 C			17.1 mm	14.75 mm	8.4 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port 749020010A Wurth Elektronik 1: £5.19 3,169In Stock	Mfr. Part No. 749020010A Mouser Part No 710-749020010A	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	3,169In Stock	Cut Tape £5.19 £4.75 £4.39 £4.12 Reel £3.91 £3.75 MouseReel Available	Min.: 1 Mult.: 1 : 400	LAN Transformers	LAN	SMD/SMT		350 uH	1500 Vrms	- 40 C	+ 85 C	4 Channel		17.5 mm	15.24 mm	6.5 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN SMT TRANSFMR 1000BT 1Port PoE+ETR 749022011 Wurth Elektronik 1: £4.85 1,954In Stock 1,200Expected 05/02/2027	Mfr. Part No. 749022011 Mouser Part No 710-749022011	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN SMT TRANSFMR 1000BT 1Port PoE+ETR Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	1,954In Stock 1,200Expected 05/02/2027	Cut Tape £4.85 £4.68 £4.42 £3.93 Reel £3.73 MouseReel Available	Min.: 1 Mult.: 1 : 400	LAN Transformers	LAN	SMD/SMT		350 uH	1.5 kVAC	- 40 C	+ 85 C	Quad		18.3 mm	12.2 mm	6.35 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: £4.46 3,073In Stock 2,000Expected 29/01/2027	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	3,073In Stock 2,000Expected 29/01/2027	Cut Tape £4.46 £4.30 £4.04 £3.81 Reel £3.41 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: £4.85 1,411In Stock 1,280Expected 29/01/2027	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	1,411In Stock 1,280Expected 29/01/2027	Cut Tape £4.85 £4.69 £4.40 £4.14 Reel £3.68 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: £4.85 2,338In 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	2,338In Stock 1,740Expected 20/11/2026	Cut Tape £4.85 £4.69 £4.40 £4.14 Reel £3.68 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 10/100/1000 Base-T SMT Transformer 1 Port 40pin pitch 1.27mm 7490240140 Wurth Elektronik 1: £8.97 218In Stock	Mfr. Part No. 7490240140 Mouser Part No 710-7490240140	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T SMT Transformer 1 Port 40pin pitch 1.27mm Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	218In Stock	Cut Tape £8.97 £7.48 £6.80 £6.18 Reel £5.83 MouseReel Available	Min.: 1 Mult.: 1 : 200	LAN Transformers	LAN Transformer	SMD/SMT		350 uH	4 kVAC	- 40 C	+ 85 C			28.32 mm	12.7 mm	12.7 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T SMT Transformer 1 Port 1000BASE-T 24pin pitch 1.27mm 7490240142 Wurth Elektronik 1: £8.97 480In Stock 720Expected 13/11/2026	Mfr. Part No. 7490240142 Mouser Part No 710-7490240142	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T SMT Transformer 1 Port 1000BASE-T 24pin pitch 1.27mm Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	480In Stock 720Expected 13/11/2026	Cut Tape £8.97 £7.48 £6.80 £6.18 Reel £5.33 MouseReel Available	Min.: 1 Mult.: 1 : 240	LAN Transformers	LAN Transformer	SMD/SMT		350 uH	4 kVAC	- 40 C	+ 85 C			18.25 mm	15.24 mm	10.02 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port Transformer 749050010A Wurth Elektronik 1: £6.07 435In Stock 400Expected 02/11/2026	Mfr. Part No. 749050010A Mouser Part No 710-749050010A	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port Transformer Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	435In Stock 400Expected 02/11/2026	Cut Tape £6.07 £5.47 £5.25 £5.09 Reel £4.37 View £4.93 £4.15 MouseReel Available	Min.: 1 Mult.: 1 : 400	LAN Transformers	Module	SMD/SMT		200 uH	1.5 kVAC	0 C	+ 70 C						WE-LAN 10G	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port ETR Trnsfmr 749050017 Wurth Elektronik 1: £9.86 489In Stock 450On Order	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	489In Stock 450On Order	Cut Tape £9.86 £8.18 £7.11 £6.43 Reel £6.10 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 ETR Trnsfmr 749050018 Wurth Elektronik 1: £9.86 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 £9.86 £8.18 £7.11 £6.43 Reel £6.10 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-LAN 10GBase-T SMD 1 Port 4PPoE Trnsfmr 749052050 Wurth Elektronik 1: £11.79 839In Stock 870Expected 20/11/2026	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	839In Stock 870Expected 20/11/2026	Cut Tape £11.79 £9.86 £8.54 £7.75 Reel £7.36 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 WE-LAN 2.5G/5G Base-T SMT 1 Port 120uH OCL a. 27mA DC Bias ETR from -40C to +85C 749082010 Wurth Elektronik 1: £11.52 865In Stock	Mfr. Part No. 749082010 Mouser Part No 710-749082010	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 2.5G/5G Base-T SMT 1 Port 120uH OCL a. 27mA DC Bias ETR from -40C to +85C Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	865In Stock	Cut Tape £11.52 £10.58 £9.54 £8.66 Reel £7.53 MouseReel Available	Min.: 1 Mult.: 1 : 290	LAN Transformers	LAN Transformer	SMD/SMT		350 uH	1.5 kV	- 40 C	+ 85 C			18.29 mm	16 mm	8.8 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 1KBsT nonPoE 350uH 1Port 4kVrms 7490240120 Wurth Elektronik 1: £21.07 33In Stock 200Expected 13/11/2026	Mfr. Part No. 7490240120 Mouser Part No 710-7490240120	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 1KBsT nonPoE 350uH 1Port 4kVrms Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	33In Stock 200Expected 13/11/2026	Cut Tape £21.07 £17.56 £15.96 £14.51 Reel £13.08 MouseReel Available	Min.: 1 Mult.: 1 : 200	High Voltager LAN Transformers	LAN	SMD/SMT		350 uH	4 kV	- 40 C	+ 105 C			28.57 mm	12.7 mm	15.49 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-AMT Trnsfmr 30uH .350Ohm 750082154 Wurth Elektronik 1: £0.593 923In Stock 6,000Expected 28/01/2027	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	923In Stock 6,000Expected 28/01/2027	Cut Tape £0.593 £0.59 £0.553 £0.498 £0.443 Reel £0.443 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: £2.73 407In Stock 1,120Expected 02/03/2027	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	407In Stock 1,120Expected 02/03/2027	Cut Tape £2.73 £2.47 £2.37 £2.30 Reel £2.19 View £2.12 £2.03 £1.97 £1.96 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 10/100 Base-TX SMT Transformer 1Port 12pin pitch 2.54mm 4KVrms isolation 7490140141 Wurth Elektronik 1: £4.85 600Expected 19/03/2027	Mfr. Part No. 7490140141 Mouser Part No 710-7490140141	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10/100 Base-TX SMT Transformer 1Port 12pin pitch 2.54mm 4KVrms isolation Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	600Expected 19/03/2027	Cut Tape £4.85 £4.68 £4.42 £4.16 Reel £3.72 MouseReel Available	Min.: 1 Mult.: 1 : 300	LAN Transformers	LAN Transformer	SMD/SMT		350 uH	4 kVAC	- 40 C	+ 85 C			17.1 mm	14.5 mm	8.65 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 1000Base-T 48P Pitch 1.02mm 1.5kVrms Non-PoE 749020020A Wurth Elektronik 1: £4.58 600Expected 30/10/2026 New Product	Mfr. Part No. 749020020A Mouser Part No 710-749020020A New Product	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 1000Base-T 48P Pitch 1.02mm 1.5kVrms Non-PoE Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	600Expected 30/10/2026	Cut Tape £4.58 £4.05 £3.70 £3.46 Reel £2.93 £2.82 MouseReel Available	Min.: 1 Mult.: 1 : 300	Transformers	LAN Transformer	SMD/SMT		350 uH		- 40 C	+ 85 C	8 Channel		27.8 mm	12.2 mm	7.2 mm	WE-LAN	Reel, Cut Tape, MouseReel