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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 (GBP) 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	Length	Width	Height	Series	Qualification	Packaging
Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-T D STR W/ POE 21033812411 HARTING 1: £23.25 4In Stock 60Expected 16/11/2026	Mfr. Part No. 21033812411 Mouser Part No 617-21033812411	HARTING	Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-T D STR W/ POE Learn More about HARTING m12 magnetics connectors	Datasheet	4In Stock 60Expected 16/11/2026	£23.25 £20.82 £19.92 £19.18 View £18.54 £17.62 £17.28 Quote	Min.: 1 Mult.: 1	PoE Transformers		SMD/SMT	10 MHz to 100 MHz				1.5 kV	- 40 C	+ 85 C	Dual
Audio Transformers / Signal Transformers M12 TRANS 10GBASE-T X STR WITH POE+ 21033812823 HARTING 1: £35.23 20In Stock	Mfr. Part No. 21033812823 Mouser Part No 617-21033812823	HARTING	Audio Transformers / Signal Transformers M12 TRANS 10GBASE-T X STR WITH POE+ Learn More about HARTING m12 magnetics connectors	Datasheet	20In Stock	£35.23 £32.21 £31.10 £30.42 View £27.80 Quote	Min.: 1 Mult.: 1	PoE Transformers		SMD/SMT	10 MHz to 100 MHz				1.5 kV	- 40 C	+ 85 C	Quad
Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-T D ANG W/O POE 21033814420 HARTING 1: £29.31 5In Stock	Mfr. Part No. 21033814420 Mouser Part No 617-21033814420	HARTING	Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-T D ANG W/O POE Learn More about HARTING m12 magnetics connectors	Datasheet	5In Stock	£29.31 £26.23 £25.00 £24.16 View £23.35 £22.07 Quote	Min.: 1 Mult.: 1	PoE Transformers		SMD/SMT	10 MHz to 100 MHz				1.5 kV	- 40 C	+ 85 C	Dual
Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-TD ANG W/ POE+ 21033814421 HARTING 1: £28.49 1In Stock	Mfr. Part No. 21033814421 Mouser Part No 617-21033814421	HARTING	Audio Transformers / Signal Transformers M12 TRANS 10/100 BASE-TD ANG W/ POE+ Learn More about HARTING m12 magnetics connectors	Datasheet	1In Stock	£28.49 £24.97 £23.47 £22.59 View £21.78 £21.34 Quote	Min.: 1 Mult.: 1	PoE Transformers		SMD/SMT	10 MHz to 100 MHz				1.5 kV	- 40 C	+ 85 C	Dual
Audio Transformers / Signal Transformers M12 TRANS 1000BASE-T X ANG W/O POE 21033814820 HARTING 1: £41.84 19In Stock	Mfr. Part No. 21033814820 Mouser Part No 617-21033814820	HARTING	Audio Transformers / Signal Transformers M12 TRANS 1000BASE-T X ANG W/O POE Learn More about HARTING m12 magnetics connectors	Datasheet	19In Stock	£41.84 £37.62 £35.76 £34.61 View £32.70 £32.10 Quote	Min.: 1 Mult.: 1	LAN Transformers		SMD/SMT	10 MHz to 100 MHz				1.5 kV	- 40 C	+ 85 C	Quad
Audio Transformers / Signal Transformers LINE MATCHING TRANS LM-LP-1001L Bourns 1: £2.66 54In Stock 1,008Expected 16/11/2026	Mfr. Part No. LM-LP-1001L Mouser Part No 652-LM-LP-1001L	Bourns	Audio Transformers / Signal Transformers LINE MATCHING TRANS Learn More about Bourns power supply solutions	Datasheet	54In Stock 1,008Expected 16/11/2026	£2.66 £2.17 £2.08 £1.94 View £1.80 £1.75 £1.62 £1.58 £1.56	Min.: 1 Mult.: 1	Signal Transformers	Pin Terminal Transformers	Radial	200 Hz to 3.5 kHz	2.8 H	600 Ohms	600 Ohms		- 10 C	+ 60 C	Single	17.7 mm	17.7 mm	12.6 mm			Tube
Audio Transformers / Signal Transformers 1KHz 90ohm 10% LM-NP-1005L Bourns 1: £5.83 168In Stock	Mfr. Part No. LM-NP-1005L Mouser Part No 652-LM-NP-1005L	Bourns	Audio Transformers / Signal Transformers 1KHz 90ohm 10% Learn More about Bourns power supply solutions	Datasheet	168In Stock	£5.83 £5.26 £4.92 £4.75 View £4.61 £4.54 £4.39 £4.26 Quote	Min.: 1 Mult.: 1	Signal Transformers	Pin Terminal Transformers	Radial	200 Hz to 3.5 kHz		600 Ohms	600 Ohms		- 10 C	+ 60 C	Single	17.7 mm	17.7 mm	12.6 mm			Tube
Audio Transformers / Signal Transformers LAN xfmr,10/100/1000 BASE-T,IEEE,AEC-Q SM453229A-381N7Y Bourns 1: £0.465 104In Stock 22,000On Order	Mfr. Part No. SM453229A-381N7Y Mouser Part No 652-SM453229A-381N7Y	Bourns	Audio Transformers / Signal Transformers LAN xfmr,10/100/1000 BASE-T,IEEE,AEC-Q Learn More about Bourns automotive grade chip lan transformer	Datasheet	104In Stock 22,000On Order On Order Ship Dates Mfr. No: SM453229A-381N7Y Stock: 104 Can Dispatch Immediately On Order: 10,000 Expected 25/01/2027 6,000 Expected 17/02/2027 6,000 Expected 04/03/2027 Factory Lead Time: 22 Weeks	Cut Tape £0.465 £0.424 £0.396 £0.382 Reel £0.317 View £0.366 £0.354 £0.349 £0.297 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	LAN Transformers	LAN	SMD/SMT	1 MHz to 100 MHz					- 40 C	+ 105 C	Single	4.7 mm	3.3 mm	2.9 mm		AEC-Q200	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers LAN xfmr,10GbE,PoE+,IEEE SM453230-121N7YP Bourns 1: £1.03 1,278In Stock 4,000On Order	Mfr. Part No. SM453230-121N7YP Mouser Part No 652-SM453230-121N7YP	Bourns	Audio Transformers / Signal Transformers LAN xfmr,10GbE,PoE+,IEEE Learn More about Bourns sm453230 x1n7yp transformers	Datasheet	1,278In Stock 4,000On Order On Order Ship Dates Mfr. No: SM453230-121N7YP Stock: 1,278 Can Dispatch Immediately On Order: 2,000 Expected 21/01/2027 2,000 Expected 28/04/2027 Factory Lead Time: 22 Weeks	Cut Tape £1.03 £0.863 £0.759 £0.716 Reel £0.533 View £0.688 £0.667 £0.646 £0.523 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	LAN Transformers	LAN	SMD/SMT	1 MHz to 500 MHz					- 40 C	+ 85 C	Single	4.7 mm	3.3 mm	2.9 mm	SM453230-xxxN7YP		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Chip LAN xfmr,1 /2.5/5G,4.7x3.2x2.9mm SM453230-181N7Y Bourns 1: £0.458 1,226In Stock	Mfr. Part No. SM453230-181N7Y Mouser Part No 652-SM453230-181N7Y	Bourns	Audio Transformers / Signal Transformers Chip LAN xfmr,1 /2.5/5G,4.7x3.2x2.9mm Learn More about Bourns sm453230 1x1n7y transformers	Datasheet	1,226In Stock	Cut Tape £0.458 £0.388 £0.366 £0.353 Reel £0.292 View £0.331 £0.325 £0.32 £0.278 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	LAN Transformers	LAN	SMD/SMT	1 MHz to 100 MHz					- 40 C	+ 85 C	Single	4.7 mm	3.3 mm	2.9 mm	SM453230-181N7Y		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers LAN xfmr,1/2.5/5GbE,PoE+,IEEE SM453230-231N7YP Bourns 1: £0.465 2,044In Stock	Mfr. Part No. SM453230-231N7YP Mouser Part No 652-SM453230-231N7YP	Bourns	Audio Transformers / Signal Transformers LAN xfmr,1/2.5/5GbE,PoE+,IEEE Learn More about Bourns sm453230 x1n7yp transformers	Datasheet	2,044In Stock	Cut Tape £0.465 £0.404 £0.378 £0.366 Reel £0.332 View £0.354 £0.347 £0.265 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	LAN Transformers	LAN	SMD/SMT	1 MHz to 100 MHz					- 40 C	+ 85 C	Single	4.7 mm	3.3 mm	2.9 mm	SM453230-xxxN7YP		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers FLYBACK XFMER SM91047EL Bourns 1: £3.14 1,832In Stock	Mfr. Part No. SM91047EL Mouser Part No 652-SM91047EL	Bourns	Audio Transformers / Signal Transformers FLYBACK XFMER Learn More about Bourns power supply solutions	Datasheet	1,832In Stock	Cut Tape £3.14 £2.85 £2.65 £2.50 Reel £2.07 View £2.42 £2.12 £2.02 MouseReel Available	Min.: 1 Mult.: 1 : 900	Flyback Transformers	Flyback	SMD/SMT	50 kHz	5 mH				- 40 C	+ 125 C	Single	17.8 mm	13.5 mm	12.7 mm	SM9		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL, SIN, 2.,5GD, 3KV, 1:1, HF, SMD, T&R HB4011HLT Pulse Electronics 1: £4.55 1,400In Stock	Mfr. Part No. HB4011HLT Mouser Part No 673-HB4011HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL, SIN, 2.,5GD, 3KV, 1:1, HF, SMD, T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	1,400In Stock	Cut Tape £4.55 £4.11 £3.95 £3.83 Reel £3.50 View £3.70 £3.49 £3.38 £2.90 MouseReel Available	Min.: 1 Mult.: 1 : 350	LAN Transformers	LAN Discrete Modules	SMD/SMT					1.5 kVrms	0 C	+ 70 C	Single	17.6 mm	15.9 mm	6 mm	HB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL, SIN, 2.5GPP,1:1, HF, SMD, T&R HB4013HLT Pulse Electronics 1: £3.41 1,247In Stock	Mfr. Part No. HB4013HLT Mouser Part No 673-HB4013HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL, SIN, 2.5GPP,1:1, HF, SMD, T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	1,247In Stock	Cut Tape £3.41 £3.09 £2.87 £2.79 Reel £2.64 View £2.60 £2.55 £2.17 £2.12 MouseReel Available	Min.: 1 Mult.: 1 : 350	LAN Transformers	LAN Discrete Modules with PoE	SMD/SMT					1.5 kVrms	0 C	+ 70 C	Single	17.6 mm	15.9 mm	6 mm	HB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL, SIN, 2.5GPP,1:1, HF, SMD, T&R HB4015HLT Pulse Electronics 1: £3.88 1,400In Stock	Mfr. Part No. HB4015HLT Mouser Part No 673-HB4015HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL, SIN, 2.5GPP,1:1, HF, SMD, T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	1,400In Stock	Cut Tape £3.88 £3.50 £3.36 £3.26 Reel £3.05 View £3.22 £2.94 £2.85 £2.46 MouseReel Available	Min.: 1 Mult.: 1 : 350	LAN Transformers	LAN Discrete Modules with PoE	SMD/SMT					1.5 kVrms	0 C	+ 70 C	Single	17.6 mm	15.9 mm	6 mm	HB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL, DUAL,2,5GPP, 1:1,EXT. HF, SMD,T&R HB4018HLT Pulse Electronics 1: £5.96 700In Stock	Mfr. Part No. HB4018HLT Mouser Part No 673-HB4018HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL, DUAL,2,5GPP, 1:1,EXT. HF, SMD,T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	700In Stock	Cut Tape £5.96 £5.39 £5.17 £5.00 Reel £4.57 View £4.85 £4.52 £3.88 £3.84 MouseReel Available	Min.: 1 Mult.: 1 : 350	LAN Transformers	LAN Discrete Modules with PoE	SMD/SMT					1.5 kVrms	0 C	+ 70 C	Dual	27.8 mm	15.2 mm	7.2 mm	HB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL, SIN, 1GD,1:1, HF, SMD, T&R HB5004HLT Pulse Electronics 1: £4.43 1,560In Stock	Mfr. Part No. HB5004HLT Mouser Part No 673-HB5004HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL, SIN, 1GD,1:1, HF, SMD, T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	1,560In Stock	Cut Tape £4.43 £3.75 £3.53 £3.35 Reel £2.42 View £3.20 £3.03 £2.07 £2.03 MouseReel Available	Min.: 1 Mult.: 1 : 780	LAN Transformers	LAN Discrete Modules	SMD/SMT					1.5 kVrms	0 C	+ 70 C	Single	15.1 mm	10 mm	4 mm	HB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL, SIN, 1GD,1:1, HF, SMD, T&R HB5009HLT Pulse Electronics 1: £4.16 1,225In Stock	Mfr. Part No. HB5009HLT Mouser Part No 673-HB5009HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL, SIN, 1GD,1:1, HF, SMD, T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	1,225In Stock	Cut Tape £4.16 £3.13 £2.83 £2.72 Reel £2.42 View £2.61 £2.50 £2.08 £2.04 MouseReel Available	Min.: 1 Mult.: 1 : 780	LAN Transformers	LAN Discrete Modules	SMD/SMT					1.5 kVrms	0 C	+ 70 C	Single	15.1 mm	10 mm	4 mm	HB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL, DUAL, 1GD, 1:1, HF, SMD, T&R HB5014HLT Pulse Electronics 1: £4.67 1,048In Stock	Mfr. Part No. HB5014HLT Mouser Part No 673-HB5014HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL, DUAL, 1GD, 1:1, HF, SMD, T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	1,048In Stock	Cut Tape £4.67 £4.22 £4.05 £3.93 Reel £3.59 View £3.80 £3.58 £3.47 £3.01 MouseReel Available	Min.: 1 Mult.: 1 : 350	LAN Transformers	LAN Discrete Modules	SMD/SMT					4 kVrms	0 C	+ 70 C	Dual	27.8 mm	15.2 mm	7.2 mm	HB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL, SIN, 5GD, 1:1, HF, SMD, T&R HB5G007HLT Pulse Electronics 1: £3.97 1,050In Stock	Mfr. Part No. HB5G007HLT Mouser Part No 673-HB5G007HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL, SIN, 5GD, 1:1, HF, SMD, T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	1,050In Stock	Cut Tape £3.97 £3.59 £3.45 £3.34 Reel £3.06 View £3.24 £3.03 £2.92 £2.56 MouseReel Available	Min.: 1 Mult.: 1 : 350	LAN Transformers	LAN Discrete Modules	SMD/SMT					4 kVrms	0 C	+ 70 C	Single	17.6 mm	15.9 mm	6 mm	HB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL, SIN, 5GD, 1:1, HF, SMD, T&R HB5G009HLT Pulse Electronics 1: £3.97 1,050In Stock	Mfr. Part No. HB5G009HLT Mouser Part No 673-HB5G009HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL, SIN, 5GD, 1:1, HF, SMD, T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	1,050In Stock	Cut Tape £3.97 £3.59 £3.45 £3.34 Reel £3.06 View £3.24 £3.03 £2.92 £2.55 MouseReel Available	Min.: 1 Mult.: 1 : 350	LAN Transformers	LAN Discrete Modules	SMD/SMT					4 kVrms	0 C	+ 70 C	Single	17.6 mm	15.9 mm	6 mm	HB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL,DUAL, 5GD, 1:1, HF, SMD, T&R HB5G015HLT Pulse Electronics 1: £5.94 700In Stock	Mfr. Part No. HB5G015HLT Mouser Part No 673-HB5G015HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL,DUAL, 5GD, 1:1, HF, SMD, T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	700In Stock	Cut Tape £5.94 £5.36 £5.14 £4.98 Reel £4.70 View £4.87 £4.65 £3.88 £3.83 MouseReel Available	Min.: 1 Mult.: 1 : 350	LAN Transformers	LAN Discrete Modules	SMD/SMT					1.5 kVrms	0 C	+ 70 C	Dual	27.8 mm	15.2 mm	7.2 mm	HB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL,DUAL, 5GPP, 1:1, HF, SMD, T&R HB5G016HLT Pulse Electronics 1: £6.92 700In Stock	Mfr. Part No. HB5G016HLT Mouser Part No 673-HB5G016HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL,DUAL, 5GPP, 1:1, HF, SMD, T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	700In Stock	Cut Tape £6.92 £6.25 £5.99 £5.81 Reel £5.32 View £5.62 £5.25 £4.58 MouseReel Available	Min.: 1 Mult.: 1 : 350	LAN Transformers	LAN Discrete Modules with PoE	SMD/SMT					1.5 kVrms	0 C	+ 70 C	Dual	27.8 mm	15.2 mm	7.2 mm	HB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL,DUAL, 5GD, 1:1, HF, SMD, T&R HB5G018HLT Pulse Electronics 1: £7.11 600In Stock	Mfr. Part No. HB5G018HLT Mouser Part No 673-HB5G018HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL,DUAL, 5GD, 1:1, HF, SMD, T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	600In Stock	Cut Tape £7.11 £6.31 £5.89 £5.67 Reel £5.20 View £5.50 £4.91 £4.30 £4.25 MouseReel Available	Min.: 1 Mult.: 1 : 300	LAN Transformers	LAN Discrete Modules	SMD/SMT					4 kVrms	0 C	+ 70 C	Dual	32.8 mm	17.6 mm	7.3 mm	HB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers MDL,DUAL, 5GPP, 1:1, HF, SMD, T&R HB5G019HLT Pulse Electronics 1: £7.11 600In Stock	Mfr. Part No. HB5G019HLT Mouser Part No 673-HB5G019HLT	Pulse Electronics	Audio Transformers / Signal Transformers MDL,DUAL, 5GPP, 1:1, HF, SMD, T&R Learn More about Pulse Electronics hb hxb discrete lan transformers	Datasheet	600In Stock	Cut Tape £7.11 £6.31 £5.89 £5.67 Reel £5.20 View £5.50 £4.91 £4.30 £4.25 MouseReel Available	Min.: 1 Mult.: 1 : 300	LAN Transformers	LAN Discrete Modules with PoE	SMD/SMT					4 kVrms	0 C	+ 70 C	Dual	32.8 mm	17.6 mm	7.3 mm	HB		Reel, Cut Tape, MouseReel