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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 VOIP MODULE 1CT:1CT SHARE CMC ROHS TOPPER S558-5500-25-F Bel Magnetic Solutions 1: $2.10 44,549In Stock 57,600Expected 18/12/2026	Mfr. Part No. S558-5500-25-F Mouser Part No 530-S558-5500-25-F	Bel Magnetic Solutions	Audio Transformers / Signal Transformers VOIP MODULE 1CT:1CT SHARE CMC ROHS TOPPER	Datasheet	44,549In Stock 57,600Expected 18/12/2026	Cut Tape $2.10 $1.91 $1.78 $1.73 Reel $1.51 View $1.66 $1.56 $1.44 $1.42 MouseReel Available	Min.: 1 Mult.: 1 : 900	LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH				0 C	+ 70 C	Single		12.32 mm	7.24 mm	5.71 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Transformer S558-5999-U7-F Bel Magnetic Solutions 1: $2.16 53,784In Stock	Mfr. Part No. S558-5999-U7-F Mouser Part No 530-S558-5999-U7-F	Bel Magnetic Solutions	Audio Transformers / Signal Transformers Transformer Learn More about Bel Magnetic Solutions bel magnetic s558 10gb xx	Datasheet	53,784In Stock	Cut Tape $2.16 $1.96 $1.83 $1.77 Reel $1.48 View $1.70 $1.60 $1.44 $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 900	LAN Transformers	Module	SMD/SMT	300 kHz to 100 MHz	350 uH				- 40 C	+ 85 C	Single		12.32 mm	7.24 mm	5.72 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers LAN 10/100 Tin Potted PT61017PEL Bourns 1: $1.57 23,117In Stock	Mfr. Part No. PT61017PEL Mouser Part No 652-PT61017PEL	Bourns	Audio Transformers / Signal Transformers LAN 10/100 Tin Potted Learn More about Bourns power supply solutions	Datasheet	23,117In Stock	Cut Tape $1.57 $1.43 $1.33 $1.29 Reel $0.955 View $1.24 $0.929 $0.925 $0.895 MouseReel Available	Min.: 1 Mult.: 1 : 600	LAN Transformers	Module	SMD/SMT	30 MHz to 100 MHz	350 uH			1.5 kVAC	0 C	+ 70 C	Dual	SMD-16	12.8 mm	6.9 mm	5.65 mm	PT61017PEL	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 350uHmin. .50uHmax. OP -40C to +85C PT61020EL Bourns 1: $2.69 14,992In Stock	Mfr. Part No. PT61020EL Mouser Part No 652-PT61020EL	Bourns	Audio Transformers / Signal Transformers 350uHmin. .50uHmax. OP -40C to +85C Learn More about Bourns power supply solutions	Datasheet	14,992In Stock	Cut Tape $2.69 $2.44 $2.27 $2.19 Reel $1.96 View $2.08 $1.87 $1.82 $1.78 MouseReel Available	Min.: 1 Mult.: 1 : 700	LAN Transformers		SMD/SMT	300 kHz to 100 MHz	350 uH			1.5 kVAC	- 40 C	+ 85 C	Quad		17.62 mm	12.2 mm	6 mm	PT61020EL	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 600uH 7.36mm SMT Line Matching SM-LP-5001E Bourns 1: $2.39 21,448In Stock 1,600On Order	Mfr. Part No. SM-LP-5001E Mouser Part No 652-SM-LP-5001E	Bourns	Audio Transformers / Signal Transformers 600uH 7.36mm SMT Line Matching Learn More about Bourns power supply solutions	Datasheet	21,448In Stock 1,600On Order	Cut Tape $2.39 $2.16 $2.02 $1.95 Reel $1.74 View $1.94 $1.64 $1.59 $1.57 MouseReel Available	Min.: 1 Mult.: 1 : 400	Line Matching Transformers		SMD/SMT	200 Hz to 4 kHz	6 mH	600 Ohms	600 Ohms	2 kV	- 20 C	+ 85 C	Single	SMT-6	12.8 mm	9 mm	7.5 mm	SM-LP-5001	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers LAN 10/100 BASE-T XFMR +85C SM13126PEL Bourns 1: $1.97 25,553In Stock 12,600Expected 22/02/2027	Mfr. Part No. SM13126PEL Mouser Part No 652-SM13126PEL	Bourns	Audio Transformers / Signal Transformers LAN 10/100 BASE-T XFMR +85C Learn More about Bourns sm13126pel transformers	Datasheet	25,553In Stock 12,600Expected 22/02/2027	Cut Tape $1.97 $1.79 $1.66 $1.61 Reel $1.29 View $1.43 $1.20 $1.18 MouseReel Available	Min.: 1 Mult.: 1 : 600	PoE Transformers		SMD/SMT	1 MHz to 100 MHz					- 40 C	+ 85 C	Dual		12.8 mm	6.9 mm	5.65 mm	SM13126PEL	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers XFMR LAN 10/100/1000 BASE-T 1000B-5003FX iNRCORE 1: $72.09 27In Stock	Mfr. Part No. 1000B-5003FX Mouser Part No 673-1000B-5003FX	iNRCORE	Audio Transformers / Signal Transformers XFMR LAN 10/100/1000 BASE-T	Datasheet	27In Stock	$72.09 $64.29 $57.34 $56.57	Min.: 1 Mult.: 1		Ethernet Transformers	SMD/SMT		350 uH			1500 Vrms	- 55 C	+ 125 C	2 Channel		27.94 mm	10.54 mm	8.64 mm		Tube
Audio Transformers / Signal Transformers 1000B-5003X iNRCORE 1: $71.64 242In Stock	Mfr. Part No. 1000B-5003X Mouser Part No 673-1000B-5003X	iNRCORE	Audio Transformers / Signal Transformers	Datasheet	242In Stock	$71.64 $65.05 $63.21 View Quote	Min.: 1 Mult.: 1																1000B	Tube
Audio Transformers / Signal Transformers XFMR MDL,SGL,1000B,1:1,SMT 1000B-5012XT iNRCORE 1: $54.79 397In Stock	Mfr. Part No. 1000B-5012XT Mouser Part No 673-1000B-5012XT	iNRCORE	Audio Transformers / Signal Transformers XFMR MDL,SGL,1000B,1:1,SMT	Datasheet	397In Stock	Cut Tape $54.79 $49.75 $47.90 Reel $47.90 View Quote MouseReel Available	Min.: 1 Mult.: 1 : 350			SMD/SMT					1500 Vrms	- 55 C	+ 125 C	1 Channel		15.49 mm	13.46 mm	6.48 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers EXTMP XFMR 100BT SMG COM EXM 100B-1003XNLT iNRCORE 1: $23.75 1,324In Stock	Mfr. Part No. 100B-1003XNLT Mouser Part No 673-100B-1003XNLT	iNRCORE	Audio Transformers / Signal Transformers EXTMP XFMR 100BT SMG COM EXM	Datasheet	1,324In Stock	Cut Tape $23.75 $21.39 $20.50 $19.86 View Reel $17.69 $19.23 $18.43 $17.69 Quote MouseReel Available	Min.: 1 Mult.: 1 : 600																100B	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 200uH LAN 1000 Base 1:1 Surface Mount TC1000 Pulse Electronics 1: $2.40 1,926In Stock	Mfr. Part No. TC1000 Mouser Part No 673-TC1000	Pulse Electronics	Audio Transformers / Signal Transformers 200uH LAN 1000 Base 1:1 Surface Mount Learn More about Pulse Electronics pulse pulsechip transformers	Datasheet	1,926In Stock	Cut Tape $2.40 $1.70 $1.51 $1.40 View Reel $0.991 $1.34 $1.20 $0.991 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	LAN Transformers	LAN	SMD/SMT	1 MHz to 100 MHz	200 uH			1.5 kV	- 40 C	+ 85 C	Single	4.7 mm x 3.4 mm x 3.04 mm	4.7 mm	3.4 mm	3.04 mm	TC	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 120uH LAN 10G PoE 1:1 Surface Mount TC10000P Pulse Electronics 1: $2.46 2,000In Stock	Mfr. Part No. TC10000P Mouser Part No 673-TC10000P	Pulse Electronics	Audio Transformers / Signal Transformers 120uH LAN 10G PoE 1:1 Surface Mount Learn More about Pulse Electronics pulse pulsechip transformers	Datasheet	2,000In Stock	Cut Tape $2.46 $1.89 $1.71 $1.64 Reel $1.35 View $1.58 $1.41 $1.15 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	LAN Transformers	LAN	SMD/SMT	1 MHz to 400 MHz	120 uH			1.5 kV	- 40 C	+ 85 C	Single	4.7 mm x 3.4 mm x 3.04 mm	4.7 mm	3.4 mm	3.04 mm	TC	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 180uH LAN 2.5G 1:1 Surface Mount TC2500 Pulse Electronics 1: $2.39 2,000In Stock	Mfr. Part No. TC2500 Mouser Part No 673-TC2500	Pulse Electronics	Audio Transformers / Signal Transformers 180uH LAN 2.5G 1:1 Surface Mount Learn More about Pulse Electronics pulse pulsechip transformers	Datasheet	2,000In Stock	Cut Tape $2.39 $1.69 $1.51 $1.39 Reel $1.14 View $1.34 $1.20 $0.986 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	LAN Transformers	LAN	SMD/SMT	1 MHz to 125 MHz	180 uH			1.5 kV	- 40 C	+ 85 C	Single	4.7 mm x 3.4 mm x 3.04 mm	4.7 mm	3.4 mm	3.04 mm	TC	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 180uH LAN 2.5G PoE 1:1 Surface Mount TC2500P Pulse Electronics 1: $2.51 2,000In Stock	Mfr. Part No. TC2500P Mouser Part No 673-TC2500P	Pulse Electronics	Audio Transformers / Signal Transformers 180uH LAN 2.5G PoE 1:1 Surface Mount Learn More about Pulse Electronics pulse pulsechip transformers	Datasheet	2,000In Stock	Cut Tape $2.51 $1.78 $1.58 $1.46 Reel $1.20 View $1.40 $1.25 $1.03 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	LAN Transformers	LAN	SMD/SMT	1 MHz to 125 MHz	180 uH			1.5 kV	- 40 C	+ 85 C	Single	4.7 mm x 3.4 mm x 3.04 mm	4.7 mm	3.4 mm	3.04 mm	TC	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 180uH LAN 5G 1:1 Surface Mount TC5000 Pulse Electronics 1: $2.43 1,999In Stock	Mfr. Part No. TC5000 Mouser Part No 673-TC5000	Pulse Electronics	Audio Transformers / Signal Transformers 180uH LAN 5G 1:1 Surface Mount Learn More about Pulse Electronics pulse pulsechip transformers	Datasheet	1,999In Stock	Cut Tape $2.43 $1.72 $1.53 $1.41 View Reel $1.00 $1.36 $1.22 $1.00 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	LAN Transformers	LAN	SMD/SMT	1 MHz to 250 MHz	180 uH			1.5 kV	- 40 C	+ 85 C	Single	4.7 mm x 3.4 mm x 3.04 mm	4.7 mm	3.4 mm	3.04 mm	TC	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port ETR 749020011A Wurth Elektronik 1: $6.92 4,689In Stock 400Expected 20/11/2026	Mfr. Part No. 749020011A Mouser Part No 710-749020011A	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port ETR Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	4,689In Stock 400Expected 20/11/2026	Cut Tape $6.92 $6.32 $5.85 $5.49 Reel $5.21 $4.99 MouseReel Available	Min.: 1 Mult.: 1 : 400	LAN Transformers	LAN	SMD/SMT		350 uH			1500 Vrms	- 40 C	+ 85 C	Single		17.5 mm	15.24 mm	6.5 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 1000Base-T 350uH 1Port 1500Vrms 749020023A Wurth Elektronik 1: $5.97 12,219In Stock 42,400Expected 04/12/2026	Mfr. Part No. 749020023A Mouser Part No 710-749020023A	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 1000Base-T 350uH 1Port 1500Vrms Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	12,219In Stock 42,400Expected 04/12/2026	Cut Tape $5.97 $4.94 $4.15 $3.78 Reel $3.40 MouseReel Available	Min.: 1 Mult.: 1 : 800	LAN Transformers	LAN	SMD/SMT		350 uH			1.5 kV	- 40 C	+ 85 C			15.1 mm	7.1 mm	4.25 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN Transformer 1000BT 1/2 Port ETR 749020100A Wurth Elektronik 1: $6.56 15,052In Stock	Mfr. Part No. 749020100A Mouser Part No 710-749020100A	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN Transformer 1000BT 1/2 Port ETR Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	15,052In Stock	Cut Tape $6.56 $5.67 $5.01 $4.66 $4.16 Reel $3.80 MouseReel Available	Min.: 1 Mult.: 1 : 1,200	LAN Transformers	LAN	SMD/SMT		350 uH			1500 Vrms	- 40 C	+ 105 C	Single		12.7 mm	9.5 mm	3 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port 749020111A Wurth Elektronik 1: $3.96 11,459In Stock	Mfr. Part No. 749020111A Mouser Part No 710-749020111A	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	11,459In Stock	Cut Tape $3.96 $3.72 $3.51 $3.42 Reel $3.24 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	LAN Transformers	LAN	SMD/SMT		350 uH			1500 Vrms	0 C	+ 70 C	Single		16.5 mm	9.7 mm	2.35 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers WE-LAN 1KBaseT 4PPoE 350uH 1Port 1500Vrms 7490220115 Wurth Elektronik 1: $13.31 1,672In Stock	Mfr. Part No. 7490220115 Mouser Part No 710-7490220115	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 1KBaseT 4PPoE 350uH 1Port 1500Vrms Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	1,672In Stock	Cut Tape $13.31 $11.00 $9.48 Reel $8.98 MouseReel Available	Min.: 1 Mult.: 1 : 400	LAN Transformers	LAN	SMD/SMT		350 uH			1.5 kV	- 40 C	+ 85 C			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 7490220122 Wurth Elektronik 1: $6.98 9,869In Stock	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	9,869In Stock	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 10/100/1000 Base-T SMT 24P pitch 1.27mm 1.5KVrms isolation. PoE 350mA 749023113C Wurth Elektronik 1: $8.33 6,938In Stock	Mfr. Part No. 749023113C Mouser Part No 710-749023113C	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T SMT 24P pitch 1.27mm 1.5KVrms isolation. PoE 350mA Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	6,938In Stock	Cut Tape $8.33 $7.65 $6.90 $6.26 Reel $5.44 MouseReel Available	Min.: 1 Mult.: 1 : 1,200	LAN Transformers	LAN Transformer	SMD/SMT		350 uH			1.5 kV	- 40 C	+ 85 C			16.5 mm	9.6 mm	2.4 mm	WE-LAN	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 4.5-3000MHz IL 2dB Impedance Ratio 1:1 ETC1-1-13TR MACOM 1: $3.37 56,721In Stock	Mfr. Part No. ETC1-1-13TR Mouser Part No 937-ETC1-1-13TR	MACOM	Audio Transformers / Signal Transformers 4.5-3000MHz IL 2dB Impedance Ratio 1:1 Learn More about MACOM etc1 1 13 transformer	Datasheet	56,721In Stock	Cut Tape $3.37 $2.52 $1.92 $1.69 Reel $1.37 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	RF Transformers		SMD/SMT	4.5 MHz to 3 GHz		50 Ohms			- 40 C	+ 85 C	Single	SM-22-5	3.81 mm	3.81 mm	2.67 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers .1-200MHz IL 1.5dB Impedance Ratio 1:1 ETC1-1T-2TR MACOM 1: $3.11 13,472In Stock	Mfr. Part No. ETC1-1T-2TR Mouser Part No 937-ETC1-1T-2	MACOM	Audio Transformers / Signal Transformers .1-200MHz IL 1.5dB Impedance Ratio 1:1	Datasheet	13,472In Stock	Cut Tape $3.11 $2.82 $2.63 $2.55 Reel $1.68 View $2.44 $2.37 $2.29 $1.58 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	RF Transformers		SMD/SMT	100 kHz to 200 MHz		50 Ohms			- 40 C	+ 85 C	Single	SM-22-5	3.81 mm	3.81 mm	2.67 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Balun,1:2TxLine,20-4000MHz,Ceramic,SM22 MABA-011100 MACOM 1: $8.18 5,334In Stock 4,000On Order	Mfr. Part No. MABA-011100 Mouser Part No 937-MABA-011100	MACOM	Audio Transformers / Signal Transformers Balun,1:2TxLine,20-4000MHz,Ceramic,SM22	Datasheet	5,334In Stock 4,000On Order	$8.18 $5.78 $5.46 $4.93 View $4.74 $4.56 $4.02	Min.: 1 Mult.: 1	Baluns		SMD/SMT