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Audio Transformers / Signal Transformers

Audio Transformers & Signal Transformers are available at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many signal and audio transformer manufacturers including Bourns, Coilcraft, HALO, Mini-Circuits, Pulse, Triad, Wurth, Xicon & more. Please view our large selection of audio transformers and signal transformers below.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	Product	Type	Termination Style	Frequency Range	Inductance	Primary Impedance	Secondary Impedance	Isolation Voltage	Minimum Operating Temperature	Maximum Operating Temperature	Number of Channels	Package/Case	Length	Width	Height	Series	Packaging
Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Por TX1089NL Pulse Electronics 1: €4.97 447In Stock	Mfr. Part No. TX1089NL Mouser Part No 673-TX1089NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Por	Datasheet	447In Stock	€4.97 €4.50 €4.22 €4.09 View €4.01 €3.81 €3.75 €3.11 €3.09	Min.: 1 Mult.: 1		ISDN Transformers	Module	SMD/SMT		1.2 mH, 1.2 mH	1 Ohms		1.5 kV	- 40 C	+ 85 C	Dual		12.83 mm	7.11 mm	6.22 mm		Tube
Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Port TX1089NLT Pulse Electronics 1: €4.97 400In Stock	Mfr. Part No. TX1089NLT Mouser Part No 673-TX1089NL673-T	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Port	Datasheet	400In Stock	Cut Tape €4.97 €4.50 €4.32 €4.13 Reel €3.32 View €3.96 €3.19 €3.15 MouseReel Available	Min.: 1 Mult.: 1 : 600		ISDN Transformers	Module	SMD/SMT			700 mOhms, 700 mOhms		1.5 kV	- 40 C	+ 85 C	Dual		12.83 mm	7.11 mm	6.22 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .8Ohms 1-Por TX1315NL Pulse Electronics 1: €4.64 553In Stock	Mfr. Part No. TX1315NL Mouser Part No 673-TX1315NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .8Ohms 1-Por	Datasheet	553In Stock	€4.64 €4.20 €4.02 €3.77 View €3.66 €3.59 €3.48 €3.11 €3.10	Min.: 1 Mult.: 1		ISDN Transformers	Module	SMD/SMT		1.2 mH	1 Ohms		1.5 kV	- 40 C	+ 85 C	Single		7.62 mm	7 mm	6.35 mm		Tube
Audio Transformers / Signal Transformers X-1569T iNRCORE 1: €15.79 233In Stock	Mfr. Part No. X-1569T Mouser Part No 673-X-1569T	iNRCORE	Audio Transformers / Signal Transformers	Datasheet	233In Stock	Cut Tape €15.79 €14.20 €13.64 €13.21 View Reel €11.98 €12.80 €12.00 €11.98 Quote MouseReel Available	Min.: 1 Mult.: 1 : 400		Gate Drive Transformers		SMD/SMT	50 kHz	3.3 mH			1.5 kVDC	- 55 C	+ 130 C			9.01 mm	8.63 mm	7.62 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN DP83822 SMT Transfrmr 100BT 1 Port ETR 749013011 Wurth Elektronik 1: €2.11 2,224In Stock 3,000Expected 19/11/2026	Mfr. Part No. 749013011 Mouser Part No 710-749013011	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN DP83822 SMT Transfrmr 100BT 1 Port ETR Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	2,224In Stock 3,000Expected 19/11/2026	Cut Tape €2.11 €2.06 Reel €1.74 MouseReel Available	Min.: 1 Mult.: 1 : 750		LAN Transformers	LAN	SMD/SMT		350 uH			1.5 kVAC	- 40 C	+ 85 C	Dual		12.95 mm	7.11 mm	5.33 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers LAN XFRMR 10/100 ALAN-101-T ABRACON 1: €2.34 4,634In Stock	Mfr. Part No. ALAN-101-T Mouser Part No 815-ALAN-101-T	ABRACON	Audio Transformers / Signal Transformers LAN XFRMR 10/100	Datasheet	4,634In Stock	Cut Tape €2.34 €1.80 €1.57 €1.56 Reel €1.50 View €1.31 €1.28 €1.24 MouseReel Available	Min.: 1 Mult.: 1 : 600		LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz					- 40 C	+ 85 C	Single		11.43 mm	9.24 mm	5.37 mm	101	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT B78476A8065A003 TDK 1: €1.66 10,382In Stock	Mfr. Part No. B78476A8065A003 Mouser Part No 871-B78476A8065A3	TDK	Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	10,382In Stock	Cut Tape €1.66 €1.51 €1.40 €1.36 Reel €1.24 View €1.31 €1.20 €1.15 €1.14 MouseReel Available	Min.: 1 Mult.: 1 : 500		LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	- 40 C	+ 85 C	Single		12.7 mm	7.11 mm	5.6 mm	B78476A	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT B78476A8135A003 TDK 1: €3.53 647In Stock 2,000Expected 25/11/2026	Mfr. Part No. B78476A8135A003 Mouser Part No 871-B78476A8135A3	TDK	Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	647In Stock 2,000Expected 25/11/2026	Cut Tape €3.53 €3.19 €2.98 €2.88 Reel €2.61 View €2.71 €2.50 €2.47 MouseReel Available	Min.: 1 Mult.: 1 : 400		LAN Transformers	Module	SMD/SMT	100 kHz	350 uH		1 Ohms		- 40 C	+ 85 C	Single		13.8 mm	15.2 mm	5.72 mm	B78476A	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 10/100 BASE-T -40C+85C 1-PORT B78476A8247A003 TDK 1: €2.06 6,243In Stock	Mfr. Part No. B78476A8247A003 Mouser Part No 871-B78476A8247A3	TDK	Audio Transformers / Signal Transformers 10/100 BASE-T -40C+85C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	6,243In Stock	Cut Tape €2.06 €1.87 €1.74 €1.69 Reel €1.56 View €1.62 €1.48 €1.46 €1.41 MouseReel Available	Min.: 1 Mult.: 1 : 500		LAN Transformers	Module	SMD/SMT	100 kHz	350 uH	1 Ohms	1 Ohms		- 40 C	+ 85 C	Single		12.7 mm	6.9 mm	5.6 mm	B78476A	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT B78476A8249A003 TDK 1: €3.53 694In Stock	Mfr. Part No. B78476A8249A003 Mouser Part No 871-B78476A8249A3	TDK	Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	694In Stock	Cut Tape €3.53 €3.19 €3.13 €2.94 Reel €2.78 View €2.69 €2.48 €2.38 €2.31 MouseReel Available	Min.: 1 Mult.: 1 : 350		LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single		17.6 mm	12.1 mm	5.8 mm	B78476A	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT B78476A8251A003 TDK 1: €3.53 3,761In Stock	Mfr. Part No. B78476A8251A003 Mouser Part No 871-B78476A8251A3	TDK	Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	3,761In Stock	Cut Tape €3.53 €3.19 €2.98 €2.88 Reel €2.73 View €2.63 €2.48 €2.38 MouseReel Available	Min.: 1 Mult.: 1 : 350		LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	- 40 C	+ 85 C	Single		17.6 mm	12.1 mm	5.8 mm	B78476A	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 2-PORT B78476A8252A003 TDK 1: €5.13 453In Stock	Mfr. Part No. B78476A8252A003 Mouser Part No 871-B78476A8252A3	TDK	Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 2-PORT Learn More about TDK epcos b78476 modules	Datasheet	453In Stock	Cut Tape €5.13 €4.64 €4.45 €4.31 Reel €3.95 View €4.17 €3.81 €3.66 €3.47 MouseReel Available	Min.: 1 Mult.: 1 : 350		LAN Transformers	Module	SMD/SMT		350 uH				- 40 C	+ 85 C	Dual		27.69 mm	7.29 mm	8.41 mm	B78476A	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers DA2032 Cap Chrgr For Linear LT3750 DA2032-ALD Coilcraft 1: €5.87 3,468In Stock	Mfr. Part No. DA2032-ALD Mouser Part No 994-DA2032-ALD	Coilcraft	Audio Transformers / Signal Transformers DA2032 Cap Chrgr For Linear LT3750 Learn More about Coilcraft power magnetics	Datasheet	3,468In Stock	Cut Tape €5.87 €4.57 €4.39 €4.25 Reel €3.87 View €4.10 €3.74 €3.61 €3.59 MouseReel Available	Min.: 1 Mult.: 1 : 200		Flyback Transformers	Flyback	SMD/SMT	100 kHz	10 uH			1.5 kV	- 40 C	+ 125 C	Single		17.2 mm	14.98 mm	8.89 mm	DA2032	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers ETH1 PoE+ Magnetics 2-pair cabling @30W ETH1-230LD Coilcraft 1: €7.61 1,738In Stock	Mfr. Part No. ETH1-230LD Mouser Part No 994-ETH1-230L	Coilcraft	Audio Transformers / Signal Transformers ETH1 PoE+ Magnetics 2-pair cabling @30W Learn More about Coilcraft eth1 xl transformers	Datasheet	1,738In Stock	Cut Tape €7.61 €6.87 €6.59 €6.38 Reel €5.69 View €6.18 €5.88 €5.54 MouseReel Available	Min.: 1 Mult.: 1 : 400		LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	- 40 C	+ 85 C	Dual		17.65 mm	15.75 mm	8.26 mm	ETH1	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers GA3459 for LT3751 500V 20A GA3459-BL Coilcraft 1: €8.52 2,132In Stock	Mfr. Part No. GA3459-BL Mouser Part No 994-GA3459-BL	Coilcraft	Audio Transformers / Signal Transformers GA3459 for LT3751 500V 20A Learn More about Coilcraft power magnetics	Datasheet	2,132In Stock	€8.52 €7.53 €7.18 €7.04 View €6.83 €6.54 €6.34 €6.14	Min.: 1 Mult.: 1		Flyback Transformers	Flyback	SMD/SMT	50 kHz	5 uH			1.5 kV	- 40 C	+ 125 C	Single		26.75 mm	26 mm	14 mm	GA3459	Tray
Audio Transformers / Signal Transformers NA5743 12W 0.012Ohms For LT8584 NA5743-ALD Coilcraft 1: €4.46 600In Stock	Mfr. Part No. NA5743-ALD Mouser Part No 994-NA5743-ALD	Coilcraft	Audio Transformers / Signal Transformers NA5743 12W 0.012Ohms For LT8584 Learn More about Coilcraft power magnetics	Datasheet	600In Stock	Cut Tape €4.46 €3.53 €3.41 €3.17 Reel €3.01 View €2.88 €2.84 €2.74 Quote MouseReel Available	Min.: 1 Mult.: 1 : 200			Flyback	SMD/SMT	150 kHz					- 40 C	+ 125 C	Single		12.7 mm	10.5 mm	11.43 mm	NA5743	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers NA5920 12W 0.013Ohms For LT8586 NA5920-ALD Coilcraft 1: €4.33 1,026In Stock	Mfr. Part No. NA5920-ALD Mouser Part No 994-NA5920-ALD	Coilcraft	Audio Transformers / Signal Transformers NA5920 12W 0.013Ohms For LT8586 Learn More about Coilcraft power magnetics	Datasheet	1,026In Stock	Cut Tape €4.33 €3.41 €3.29 €3.07 Reel €2.92 View €2.80 €2.74 €2.65 Quote MouseReel Available	Min.: 1 Mult.: 1 : 200			Flyback	SMD/SMT	140 kHz	4 uH			1.5 kV	- 40 C	+ 85 C	Single		12.7 mm	10.5 mm	11.43 mm	NA5920	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers POE13F Flyback PoE 13uH 12 V 1.1 A POE13F-12LD Coilcraft 1: €4.58 1,164In Stock 2,800On Order	Mfr. Part No. POE13F-12LD Mouser Part No 994-POE13F-12LD	Coilcraft	Audio Transformers / Signal Transformers POE13F Flyback PoE 13uH 12 V 1.1 A Learn More about Coilcraft poexf flyback transformers	Datasheet	1,164In Stock 2,800On Order On Order Ship Dates Mfr. No: POE13F-12LD Stock: 1,164 Can Dispatch Immediately On Order: 1,200 Pending 1,600 Expected 28/10/2026 Factory Lead Time: 10 Weeks	Cut Tape €4.58 €3.63 €3.49 €3.26 Reel €3.09 View €2.96 €2.91 €2.81 Quote MouseReel Available	Min.: 1 Mult.: 1 : 200		PoE Transformers	Flyback	SMD/SMT	250 kHz					- 40 C	+ 125 C	Single		17.2 mm	14.98 mm	8.51 mm	POE13F	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 12 V 2.5 A POE300F-12LD Coilcraft 1: €6.43 652In Stock	Mfr. Part No. POE300F-12LD Mouser Part No 994-POE300F-12LD	Coilcraft	Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 12 V 2.5 A Learn More about Coilcraft poe300f flyback transformers	Datasheet	652In Stock	Cut Tape €6.43 €5.50 €5.27 €5.11 Reel €4.50 View €4.74 €4.33 €4.21 MouseReel Available	Min.: 1 Mult.: 1 : 175		PoE Transformers	Flyback	SMD/SMT	250 kHz					- 40 C	+ 125 C	Single		21 mm	20.57 mm	11.43 mm	POE300F	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers PWB Wideband RF 1:1 0.130-425 MHz PWB-1-BLC Coilcraft 1: €3.37 929In Stock	Mfr. Part No. PWB-1-BLC Mouser Part No 994-PWB-1-BLC	Coilcraft	Audio Transformers / Signal Transformers PWB Wideband RF 1:1 0.130-425 MHz	Datasheet	929In Stock	Cut Tape €3.37 €2.78 Reel €2.37 €2.30 €2.19 View €2.12 €2.06 MouseReel Available	Min.: 1 Mult.: 1 : 250		RF Transformers		SMD/SMT	130 kHz to 425 MHz					- 40 C	+ 85 C	Single		6.77 mm	6.48 mm	4.45 mm	PWB	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers PWB Wideband RF 1:1 0.0035-125 MHz PWB3010LC Coilcraft 1: €5.07 2,508In Stock 6,750On Order	Mfr. Part No. PWB3010LC Mouser Part No 994-PWB3010LC	Coilcraft	Audio Transformers / Signal Transformers PWB Wideband RF 1:1 0.0035-125 MHz	Datasheet	2,508In Stock 6,750On Order On Order Ship Dates Mfr. No: PWB3010LC Stock: 2,508 Can Dispatch Immediately On Order: 4,250 Expected 30/11/2026 2,500 Expected 06/01/2027 Factory Lead Time: 11 Weeks	Cut Tape €5.07 €3.94 €3.93 Reel €3.35 €3.23 View €3.12 €3.10 MouseReel Available	Min.: 1 Mult.: 1 : 250		RF Transformers		SMD/SMT	3.5 kHz to 125 MHz					- 40 C	+ 85 C	Single		6.77 mm	6.48 mm	4.45 mm	PWB	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WBC SMT Mini Wdebnd 1:2 0.200-500 MHz WBC2-1TLC Coilcraft 1: €4.97 1,761In Stock 5,250Expected 20/11/2026	Mfr. Part No. WBC2-1TLC Mouser Part No 994-WBC2-1TLC	Coilcraft	Audio Transformers / Signal Transformers WBC SMT Mini Wdebnd 1:2 0.200-500 MHz	Datasheet	1,761In Stock 5,250Expected 20/11/2026	Cut Tape €4.97 €4.61 €4.52 €4.45 Reel €3.79 View €4.37 €3.94 €3.87 €3.78 MouseReel Available	Min.: 1 Mult.: 1 : 750		RF Transformers		SMD/SMT	200 kHz to 500 MHz	20 uH			300 V	- 40 C	+ 85 C		4.45 mm x 4.19 mm x 3.05 mm	4.45 mm	4.19 mm	3.05 mm	WBC	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WBC SMT Mini Wdebnd 1:4 0.300-700 MHz WBC4-6TLC Coilcraft 1: €4.64 721In Stock 1,500Expected 30/11/2026	Mfr. Part No. WBC4-6TLC Mouser Part No 994-WBC4-6TLC	Coilcraft	Audio Transformers / Signal Transformers WBC SMT Mini Wdebnd 1:4 0.300-700 MHz	Datasheet	721In Stock 1,500Expected 30/11/2026	Cut Tape €4.64 €3.66 €3.53 €3.29 Reel €2.94 View €3.12 €2.99 €2.85 Quote MouseReel Available	Min.: 1 Mult.: 1 : 750		RF Transformers		SMD/SMT	300 kHz to 700 MHz	36 uH			300 V	- 40 C	+ 85 C		4.45 mm x 4.19 mm x 3.05 mm	4.45 mm	4.19 mm	3.05 mm	WBC	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers XFMR LAN 10/100/1000 BASE-T 1000B-5001FXT iNRCORE 1: €36.46 452In Stock 900Expected 02/12/2026	Mfr. Part No. 1000B-5001FXT Mouser Part No 673-1000B-5001FXT	iNRCORE	Audio Transformers / Signal Transformers XFMR LAN 10/100/1000 BASE-T	Datasheet	452In Stock 900Expected 02/12/2026	Cut Tape €36.46 €32.81 €31.45 €30.45 View Reel €28.00 €29.78 €28.00 Quote MouseReel Available	Min.: 1 Mult.: 1 : 300	No	LAN Transformers		SMD/SMT		350 uH			1500 Vrms	- 55 C	+ 125 C	1 Channel		17.53 mm	12.19 mm	5.72 mm	1000B	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1000BASE-T1 SPE ISOLATION ISOLATION MODULE HALO Electronics TG1G-T3L8LF TG1G-T3L8LF HALO Electronics 1: €6.21 185In Stock New Product	Mfr. Part No. TG1G-T3L8LF Mouser Part No 493-TG1G-T3L8LF New Product	HALO Electronics	Audio Transformers / Signal Transformers 1000BASE-T1 SPE ISOLATION ISOLATION MODULE	Datasheet	185In Stock	€6.21 €4.01 €3.27 €2.65 View €2.21 €1.90 €1.83 €1.78	Min.: 1 Mult.: 1																		Tube