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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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.	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 Isolation Xfmr 100uH .3Ohms 1-Port PE-65728NL Pulse Electronics 1: $4.62 622In Stock	Mfr. Part No. PE-65728NL Mouser Part No 673-PE-65728NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD Isolation Xfmr 100uH .3Ohms 1-Port	Datasheet	622In Stock	$4.62 $4.18 $3.81 $3.73 View $3.67 $3.56 $2.97 $2.94 Quote	Min.: 1 Mult.: 1	Telecom Transformers	Module	SMD/SMT	100 kHz	100 uH			2 kV	0 C	+ 70 C	Single		12.7 mm	9.4 mm	5.08 mm		Tube
Audio Transformers / Signal Transformers SMD 10BaseT Islation 140uH .3Ohms 1-Port PE-65745NL Pulse Electronics 1: $4.14 1,086In Stock	Mfr. Part No. PE-65745NL Mouser Part No 673-PE-65745NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD 10BaseT Islation 140uH .3Ohms 1-Port	Datasheet	1,086In Stock	$4.14 $3.52 $3.29 $3.28 View $3.20 $3.11 $2.49	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	100 kHz	140 uH			1.5 kV	0 C	+ 70 C	Dual		12.7 mm	9.4 mm	5.08 mm		Tube
Audio Transformers / Signal Transformers THT T1/CEPT/ISDN-Pri 1200uH 1Ohm 1-Port PE-65778NL Pulse Electronics 1: $5.54 1,080In Stock	Mfr. Part No. PE-65778NL Mouser Part No 673-PE-65778NL	Pulse Electronics	Audio Transformers / Signal Transformers THT T1/CEPT/ISDN-Pri 1200uH 1Ohm 1-Port	Datasheet	1,080In Stock	$5.54 $5.01 $4.81 $4.61 View $4.44 $3.72 $3.58 $3.47	Min.: 1 Mult.: 1	ISDN Transformers	Module	Through Hole		1.2 mH			1.5 kV	- 40 C	+ 85 C	Dual	12.7 mm x 8.89 mm x 6.35 mm	12.7 mm	8.89 mm	6.35 mm		Tube
Audio Transformers / Signal Transformers SMD Digital Audio 2500uH 1-Port PE-65812NLT Pulse Electronics 1: $4.62 1,609In Stock	Mfr. Part No. PE-65812NLT Mouser Part No 673-PE-65812NLT	Pulse Electronics	Audio Transformers / Signal Transformers SMD Digital Audio 2500uH 1-Port	Datasheet	1,609In Stock	Cut Tape $4.62 $4.18 $3.89 $3.61 Reel $3.43 View $3.29 $3.24 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	Telecom Transformers	Module	SMD/SMT	100 kHz to 55 MHz	2.5 mH			2 kV	0 C	+ 70 C	Single		12.06 mm	15.24 mm	8.64 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers SMD T3/DS3/E3/STS-1 19uH 1-Port PE-65968NLT Pulse Electronics 1: $6.61 764In Stock	Mfr. Part No. PE-65968NLT Mouser Part No 673-PE-65968NLT	Pulse Electronics	Audio Transformers / Signal Transformers SMD T3/DS3/E3/STS-1 19uH 1-Port	Datasheet	764In Stock	Cut Tape $6.61 $6.37 $6.12 $5.93 Reel $5.27 View $5.74 $5.45 $4.50 $4.48 MouseReel Available	Min.: 1 Mult.: 1 : 500	Telecom Transformers	Module	SMD/SMT	250 kHz to 500 MHz	60 nH			1.5 kV	0 C	+ 70 C	Single		7.62 mm	9.91 mm	6.35 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers THT CommonMode Choke 140uH .6Ohms PE-67531NL Pulse Electronics 1: $5.58 1,033In Stock	Mfr. Part No. PE-67531NL Mouser Part No 673-PE-67531NL	Pulse Electronics	Audio Transformers / Signal Transformers THT CommonMode Choke 140uH .6Ohms	Datasheet	1,033In Stock	$5.58 $4.59 $4.25 $4.00 View $3.77 $3.51	Min.: 1 Mult.: 1	Telecom Transformers	Module	Through Hole					500 V	0 C	+ 70 C	Single		10.16 mm				Tube
Audio Transformers / Signal Transformers 100Base-T SMD NonPoE .6Ohms 1-Port PE-68515LNL Pulse Electronics 1: $7.34 385In Stock	Mfr. Part No. PE-68515LNL Mouser Part No 673-PE-68515LNL	Pulse Electronics	Audio Transformers / Signal Transformers 100Base-T SMD NonPoE .6Ohms 1-Port	Datasheet	385In Stock	$7.34 $5.95 $5.77 $5.67 View $5.46 $5.33 $4.68	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz		100 Ohms		1.5 kV	0 C	+ 70 C	Single		25.4 mm	8.89 mm	9.4 mm		Tube
Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Por PE-68678NL Pulse Electronics 1: $5.78 818In Stock	Mfr. Part No. PE-68678NL Mouser Part No 673-PE-68678NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Por Learn More about Pulse Electronics pulsetelecom	Datasheet	818In Stock	$5.78 $5.23 $4.91 $4.75 View $4.66 $4.48 $4.02 $3.90 $3.59	Min.: 1 Mult.: 1	ISDN Transformers	Module	SMD/SMT	1 MHz to 100 MHz				1.5 kV	0 C	+ 70 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 PE-68678NLT Pulse Electronics 1: $5.60 789In Stock	Mfr. Part No. PE-68678NLT Mouser Part No 673-PE-68678NLT	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Port	Datasheet	789In Stock	Cut Tape $5.60 $5.23 $5.02 $4.86 Reel $4.34 View $4.68 $4.44 $4.11 $3.62 MouseReel Available	Min.: 1 Mult.: 1 : 600	ISDN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	600 nH			1.5 kV	0 C	+ 70 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 .7Ohm 2-Port T1094NL Pulse Electronics 1: $5.78 550In Stock	Mfr. Part No. T1094NL Mouser Part No 673-T1094NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohm 2-Port	Datasheet	550In Stock	$5.78 $5.23 $4.91 $4.75 View $4.66 $4.45 $4.36 $3.79 $3.76	Min.: 1 Mult.: 1	ISDN Transformers	Module	SMD/SMT		1.2 mH, 1.2 mH	1 Ohms, 1 Ohms	1 Ohms, 2 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 1000uH 2Ohms 2-Port T1144NL Pulse Electronics 1: $5.78 871In Stock	Mfr. Part No. T1144NL Mouser Part No 673-T1144NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1000uH 2Ohms 2-Port	Datasheet	871In Stock	$5.78 $5.23 $4.91 $4.75 View $4.66 $4.45 $4.36 $3.76 $3.73	Min.: 1 Mult.: 1	ISDN Transformers	Module	SMD/SMT	50 kHz to 3 MHz	800 nH			1.5 kV	0 C	+ 70 C	Dual		12.83 mm	9.53 mm	6.22 mm		Tube
Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Por TX1089NL Pulse Electronics 1: $5.78 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	$5.78 $5.23 $4.91 $4.75 View $4.66 $4.43 $4.36 $3.62 $3.59	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: $5.78 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 $5.78 $5.23 $5.02 $4.80 Reel $3.86 View $4.61 $3.71 $3.66 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: $5.39 543In 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	543In Stock	$5.39 $4.88 $4.68 $4.38 View $4.25 $4.17 $4.05 $3.62 $3.60	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: $18.36 233In Stock	Mfr. Part No. X-1569T Mouser Part No 673-X-1569T	iNRCORE	Audio Transformers / Signal Transformers	Datasheet	233In Stock	Cut Tape $18.36 $16.51 $15.86 $15.36 Reel $13.81 View $14.88 $13.95 $13.80 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: $2.45 1,499In Stock 7,500On Order	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	1,499In Stock 7,500On Order On Order Ship Dates Mfr. No: 749013011 Stock: 1,499 Can Dispatch Immediately On Order: 3,000 Expected 13/11/2026 4,500 Expected 16/11/2026 Factory Lead Time: 6 Weeks	Cut Tape $2.45 $2.39 Reel $2.09 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: $2.72 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 $2.72 $2.09 $1.82 $1.81 Reel $1.74 View $1.52 $1.49 $1.44 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: $1.93 9,587In 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	9,587In Stock	Cut Tape $1.93 $1.75 $1.63 $1.58 Reel $1.44 View $1.52 $1.39 $1.34 $1.32 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: $4.10 2,647In Stock	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	2,647In Stock	Cut Tape $4.10 $3.71 $3.46 $3.35 Reel $3.04 View $3.15 $2.91 $2.87 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: $2.39 6,236In 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	6,236In Stock	Cut Tape $2.39 $2.17 $2.02 $1.96 Reel $1.81 View $1.88 $1.72 $1.70 $1.67 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: $4.10 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 $4.10 $3.71 $3.64 $3.42 Reel $3.23 View $3.13 $2.88 $2.77 Quote 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: $4.10 3,721In 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	3,721In Stock	Cut Tape $4.10 $3.71 $3.46 $3.35 Reel $3.17 View $3.06 $2.88 Quote 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: $5.96 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 $5.96 $5.39 $5.17 $5.01 Reel $4.59 View $4.85 $4.43 $4.25 $4.03 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: $6.83 3,394In 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	3,394In Stock	Cut Tape $6.83 $5.31 $5.10 $4.94 Reel $4.50 View $4.77 $4.35 $4.20 $4.18 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: $8.85 1,687In 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	1,687In Stock	Cut Tape $8.85 $7.99 $7.66 $7.42 Reel $6.62 View $7.19 $6.84 $6.44 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