.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 4,536

Applied Filters:

Manufacturer

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

Qualification

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

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	Package/Case	Length	Width	Height	Series	Qualification	Packaging
Audio Transformers / Signal Transformers MDL SIN 1GD 1:1 5K FUNCTUNIONAL SMD H5187NL Pulse Electronics 1: £6.67 280In Stock	Mfr. Part No. H5187NL Mouser Part No 673-H5187NL	Pulse Electronics	Audio Transformers / Signal Transformers MDL SIN 1GD 1:1 5K FUNCTUNIONAL SMD Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	280In Stock	£6.67 £6.01 £5.76 £5.58 View £4.95 £4.76 £4.72 £4.66 Quote	Min.: 1 Mult.: 1	Signal Transformers		SMD/SMT		350 uH			5 kV	0 C	+ 70 C	Single		18.5 mm	15.34 mm	9.77 mm			Tube
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-port HX5004ENL Pulse Electronics 1: £5.50 1,366In Stock	Mfr. Part No. HX5004ENL Mouser Part No 673-HX5004ENL	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-port Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	1,366In Stock	£5.50 £4.71 £4.52 £4.37 View £4.06 £3.57 £3.49 £3.35	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	- 40 C	+ 85 C	Single		17.5 mm	12.2 mm	5.72 mm	1000Base-T		Tube
Audio Transformers / Signal Transformers SMD T3/DS3/E3/STS-1 19uH 1-Port PE-65968NL Pulse Electronics 1: £4.11 549In Stock	Mfr. Part No. PE-65968NL Mouser Part No 673-PE-65968NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T3/DS3/E3/STS-1 19uH 1-Port	Datasheet	549In Stock	£4.11 £3.75 £3.62 £3.51 View £3.41 £3.20	Min.: 1 Mult.: 1	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			Tube
Audio Transformers / Signal Transformers SMD T3/DS3/E3/STS-1 100uH 1-Port T3001NL Pulse Electronics 1: £5.69 461In Stock	Mfr. Part No. T3001NL Mouser Part No 673-T3001NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T3/DS3/E3/STS-1 100uH 1-Port	Datasheet	461In Stock	£5.69 £5.14 £4.93 £4.71 View £4.70 £4.36 £3.59 £3.57	Min.: 1 Mult.: 1	Telecom Transformers	Module	SMD/SMT		100 uH	1 Ohms	1 Ohms	1.5 kV	- 40 C	+ 85 C	Single		7.62 mm	7 mm	6.35 mm			Tube
Audio Transformers / Signal Transformers - ATB3225-50011CT-T000 TDK 1: £1.68 1,805In Stock	Mfr. Part No. ATB3225-50011CT-T000 Mouser Part No 810-ATB3250011CTT000	TDK	Audio Transformers / Signal Transformers - Learn More about TDK ATB3225trans	Datasheet	1,805In Stock	Cut Tape £1.68 £1.16 £0.882 £0.766 Reel £0.676 View £0.689 £0.586	Min.: 1 Mult.: 1 : 1,000	Baluns	Module									Single					ATB-CT		Reel, Cut Tape
Audio Transformers / Signal Transformers FA2732 SMT Flyback For Si3401, Si3402 FA2732-ALD Coilcraft 1: £2.79 940In Stock	Mfr. Part No. FA2732-ALD Mouser Part No 994-FA2732-ALD	Coilcraft	Audio Transformers / Signal Transformers FA2732 SMT Flyback For Si3401, Si3402 Learn More about Coilcraft power magnetics	Datasheet	940In Stock	Cut Tape £2.79 £2.27 £2.17 £2.04 Reel £1.96 View £1.90 £1.82 £1.76 £1.71 MouseReel Available	Min.: 1 Mult.: 1 : 200	Flyback Transformers	Flyback	SMD/SMT	400 kHz	40 uH			1.5 kV	- 40 C	+ 85 C	Single		12.7 mm	10.5 mm	11 mm	FA2732		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers PWB Wideband RF 1:1 0.0035-125 MHz PWB1010LC Coilcraft 1: £3.25 1,850In Stock 2,750Expected 21/12/2026	Mfr. Part No. PWB1010LC Mouser Part No 994-PWB1010LC	Coilcraft	Audio Transformers / Signal Transformers PWB Wideband RF 1:1 0.0035-125 MHz	Datasheet	1,850In Stock 2,750Expected 21/12/2026	Cut Tape £3.25 £2.58 Reel £2.19 £2.10 £2.07 View £2.00 £1.90 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 Flyback PoE 24W 21uH 12V 6.3A POE24PR-12ED Coilcraft 1: £4.80 1,290In Stock 450Expected 23/11/2026	Mfr. Part No. POE24PR-12ED Mouser Part No 994-POE24PR-12ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 24W 21uH 12V 6.3A Learn More about Coilcraft flyback forward poe transformers	Datasheet	1,290In Stock 450Expected 23/11/2026	Cut Tape £4.80 £3.73 £3.57 £3.47 Reel £3.16 View £3.35 £3.06 £2.95 £2.93 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	200 kHz	21 uH				- 40 C	+ 125 C	Single		14.5 mm	13 mm	14 mm	POE21PR		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers POE13P Flyback PoE 13uH 12 V 1.08 A POE13P-12LD Coilcraft 1: £2.73 3,561In Stock 19,425On Order	Mfr. Part No. POE13P-12LD Mouser Part No 994-POE13P-12LD	Coilcraft	Audio Transformers / Signal Transformers POE13P Flyback PoE 13uH 12 V 1.08 A Learn More about Coilcraft poexp flyback transformers	Datasheet	3,561In Stock 19,425On Order On Order Ship Dates Mfr. No: POE13P-12LD Stock: 3,561 Can Dispatch Immediately On Order: 8,925 Expected 20/11/2026 10,500 Expected 28/12/2026 Factory Lead Time: 10 Weeks	Cut Tape £2.73 £2.22 £2.13 £2.00 Reel £1.91 View £1.87 £1.78 £1.73 £1.67 MouseReel Available	Min.: 1 Mult.: 1 : 175	PoE Transformers	Flyback	SMD/SMT	250 kHz					- 40 C	+ 85 C	Single		13.46 mm	13 mm	12.7 mm	POE13P		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 5.0 V 6 A POE300F-50LD Coilcraft 1: £5.61 570In Stock	Mfr. Part No. POE300F-50LD Mouser Part No 994-POE300F-50LD	Coilcraft	Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 5.0 V 6 A Learn More about Coilcraft poe300f flyback transformers	Datasheet	570In Stock	Cut Tape £5.61 £4.80 £4.60 £4.46 Reel £3.93 View £4.14 £3.78 £3.68 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 1:4 0.150-500 MHz PWB-4-ALC Coilcraft 1: £2.25 1,046In Stock	Mfr. Part No. PWB-4-ALC Mouser Part No 994-PWB-4-ALC	Coilcraft	Audio Transformers / Signal Transformers PWB Wideband RF 1:4 0.150-500 MHz	Datasheet	1,046In Stock	Cut Tape £2.25 £1.86 Reel £1.58 £1.54 £1.47 View £1.42 £1.37 MouseReel Available	Min.: 1 Mult.: 1 : 250	RF Transformers		SMD/SMT	150 kHz to 500 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 1:9 0.300-500 MHz WBC9-1LC Coilcraft 1: £4.96 544In Stock	Mfr. Part No. WBC9-1LC Mouser Part No 994-WBC9-1LC	Coilcraft	Audio Transformers / Signal Transformers WBC SMT Mini Wdebnd 1:9 0.300-500 MHz	Datasheet	544In Stock	Cut Tape £4.96 £4.23 £3.62 Reel £3.27 £3.26 MouseReel Available	Min.: 1 Mult.: 1 : 750	RF Transformers		SMD/SMT	300 kHz to 500 MHz	81 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 CJ5143 for NCP5080 350V 1.2A SMT CJ5143-ALC Coilcraft 1: £4.46 2,194In Stock 16,500On Order	Mfr. Part No. CJ5143-ALC Mouser Part No 994-CJ5143-ALC	Coilcraft	Audio Transformers / Signal Transformers CJ5143 for NCP5080 350V 1.2A SMT Learn More about Coilcraft power magnetics	Datasheet	2,194In Stock 16,500On Order On Order Ship Dates Mfr. No: CJ5143-ALC Stock: 2,194 Can Dispatch Immediately On Order: 7,250 Expected 23/11/2026 9,250 Expected 15/01/2027 Factory Lead Time: 10 Weeks	Cut Tape £4.46 £3.47 Reel £2.95 £2.85 £2.76 £2.74 MouseReel Available	Min.: 1 Mult.: 1 : 250	Flyback Transformers	Flyback	SMD/SMT	100 kHz	15 uH			1 kV	- 40 C	+ 125 C	Single		6.8 mm	6.2 mm	4.6 mm	CJ5143		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1812WBT SMT Wideband 1:1 4-200 MHz 1812WBT-3LC Coilcraft 1: £2.49 3,098In Stock	Mfr. Part No. 1812WBT-3LC Mouser Part No 994-1812WBT-3LC	Coilcraft	Audio Transformers / Signal Transformers 1812WBT SMT Wideband 1:1 4-200 MHz Learn More about Coilcraft 1812WBT	Datasheet	3,098In Stock	Cut Tape £2.49 £2.01 £1.94 £1.81 Reel £1.69 View £1.75 £1.62 £1.57 £1.52 MouseReel Available	Min.: 1 Mult.: 1 : 600	RF Transformers		SMD/SMT	4 MHz to 200 MHz	1.25 uH			50 V	- 40 C	+ 85 C	Single	1812 (4532 metric)	4.52 mm	3.81 mm	3.43 mm	1812WBT		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers DA2032 Cap Chrgr For Linear LT3750/51 DA2034-ALD Coilcraft 1: £4.91 1,752In Stock 1,050Expected 07/12/2026	Mfr. Part No. DA2034-ALD Mouser Part No 994-DA2034-ALD	Coilcraft	Audio Transformers / Signal Transformers DA2032 Cap Chrgr For Linear LT3750/51 Learn More about Coilcraft power magnetics	Datasheet	1,752In Stock 1,050Expected 07/12/2026	Cut Tape £4.91 £4.20 £4.02 £3.90 Reel £3.44 View £3.62 £3.31 £3.21 MouseReel Available	Min.: 1 Mult.: 1 : 175	Flyback Transformers	Flyback	SMD/SMT						- 40 C	+ 125 C	Single		20.57 mm	21 mm	9.78 mm	DA2034		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 12uH 3KV 1:2CT:1 2% AEC-Q200 BX6150NL Pulse Electronics 1: £3.82 793In Stock	Mfr. Part No. BX6150NL Mouser Part No 673-BX6150NL	Pulse Electronics	Audio Transformers / Signal Transformers 12uH 3KV 1:2CT:1 2% AEC-Q200 Learn More about Pulse Electronics bm bmu bx transformers	Datasheet	793In Stock	£3.82 £3.03 £2.92 £2.71 View £2.40 £2.11 Quote	Min.: 1 Mult.: 1	Power Line Communication Transformers	PLC	SMD/SMT						- 40 C	+ 125 C	Single		14.48 mm	13.64 mm	6.22 mm	BX	AEC-Q200	Tube
Audio Transformers / Signal Transformers HDBase-T SMD PoE+ 180uH 1-Port HD8004FNL Pulse Electronics 1: £5.76 265In Stock	Mfr. Part No. HD8004FNL Mouser Part No 673-HD8004FNL	Pulse Electronics	Audio Transformers / Signal Transformers HDBase-T SMD PoE+ 180uH 1-Port Learn More about Pulse Electronics pulse hdbaset transformers	Datasheet	265In Stock	£5.76 £5.28 £5.04 £4.91 View £4.80 £4.64 £4.59 Quote	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 500 MHz	180 uH			1.5 kV	0 C	+ 70 C	Single		15 mm	13.7 mm	5.72 mm	HD		Tube
Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port HX1148NLT Pulse Electronics 1: £6.54 1,094In Stock	Mfr. Part No. HX1148NLT Mouser Part No 673-HX1148NLT	Pulse Electronics	Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	1,094In Stock	Cut Tape £6.54 £5.90 £5.67 £5.49 Reel £5.05 View £5.32 £4.46 £4.29 £4.09 MouseReel Available	Min.: 1 Mult.: 1 : 300	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH	1 Ohms	1 Ohms	1.5 kV	- 40 C	+ 85 C	Single		25.4 mm	9.91 mm	6.22 mm	HX		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers SMD Digital Audio 3000uH .5Ohms 1-Port PE-65848NLT Pulse Electronics 1: £5.76 975In Stock	Mfr. Part No. PE-65848NLT Mouser Part No 673-PE-65848NLT	Pulse Electronics	Audio Transformers / Signal Transformers SMD Digital Audio 3000uH .5Ohms 1-Port	Datasheet	975In Stock	Cut Tape £5.76 £5.12 £4.91 £4.76 Reel £4.60 View £4.61 £3.81 £3.62 £3.50 MouseReel Available	Min.: 1 Mult.: 1 : 250	Telecom Transformers	Module	SMD/SMT					1.5 kV	0 C	+ 70 C	Single		0.475 in	0.46 in	0.34 in			Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Por TX1287NL Pulse Electronics 1: £3.52 560In Stock	Mfr. Part No. TX1287NL Mouser Part No 673-TX1287NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Por	Datasheet	560In Stock	£3.52 £3.18 £2.92 £2.87 View £2.76 £2.70 £2.67	Min.: 1 Mult.: 1	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			Tube
Audio Transformers / Signal Transformers WE-LAN 1KBsT nonPoE 350uH 2Port 1500Vrms 749020022A Wurth Elektronik 1: £12.84 355In Stock	Mfr. Part No. 749020022A Mouser Part No 710-749020022A	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LAN 1KBsT nonPoE 350uH 2Port 1500Vrms Learn More about Wurth Elektronik wurth WE LAN transformers	Datasheet	355In Stock	Cut Tape £12.84 £10.61 £9.14 Reel £8.67 MouseReel Available	Min.: 1 Mult.: 1 : 330	LAN Transformers	LAN	SMD/SMT		350 uH			1.5 kV	- 40 C	+ 85 C			27.7 mm	7.5 mm	8.5 mm	WE-LAN		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers LAN 1 Port 10/100/1000 Base-T T,C,S ALANS10001-3J41DT ABRACON 1: £2.39 1,337In Stock	Mfr. Part No. ALANS10001-3J41DT Mouser Part No 815-ALANS100013J41DT	ABRACON	Audio Transformers / Signal Transformers LAN 1 Port 10/100/1000 Base-T T,C,S Learn More about ABRACON alans10001 lan transformer modules	Datasheet	1,337In Stock	Cut Tape £2.39 £1.84 £1.75 Reel £1.53 £1.32 View £1.26 £1.24 MouseReel Available	Min.: 1 Mult.: 1 : 400	LAN Transformers	LAN	SMD/SMT	100 kHz to 100 MHz	350 uH				- 40 C	+ 85 C	Dual		18.4 mm	12.4 mm	6.5 mm	ALANS100X1		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 275uH 10% 1:1 DCR=1.2Ohms AEC-Q200 WA8478-BEC Coilcraft 1: £5.11 1,094In Stock	Mfr. Part No. WA8478-BEC Mouser Part No 994-WA8478-BEC	Coilcraft	Audio Transformers / Signal Transformers 275uH 10% 1:1 DCR=1.2Ohms AEC-Q200 Learn More about Coilcraft wa8478 flyback transformers	Datasheet	1,094In Stock	Cut Tape £5.11 £4.36 £4.18 £4.05 Reel £3.56 View £3.76 £3.43 £3.33 MouseReel Available	Min.: 1 Mult.: 1 : 175		Flyback	SMD/SMT					2.25 kV	- 40 C	+ 125 C	Single		7.85 mm	7.25 mm	7 mm	WA8478	AEC-Q200	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-Port H5084FNL Pulse Electronics 1: £4.05 1,538In Stock	Mfr. Part No. H5084FNL Mouser Part No 673-H5084FNL	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-Port	Datasheet	1,538In Stock	£4.05 £3.66 £3.48 £3.37 View £3.27 £2.87 £2.65 £2.59	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single		15.24 mm	10.29 mm	4.14 mm			Tube
Audio Transformers / Signal Transformers 1000Base-T SMD PoE 350uH .65Ohms 1-Port H6062FNLT Pulse Electronics 1: £4.58 438In Stock	Mfr. Part No. H6062FNLT Mouser Part No 673-H6062FNLT	Pulse Electronics	Audio Transformers / Signal Transformers 1000Base-T SMD PoE 350uH .65Ohms 1-Port Learn More about Pulse Electronics pulse poe solutions	Datasheet	438In Stock	Cut Tape £4.58 £3.91 £3.75 £3.63 Reel £3.01 View £3.31 £2.92 £2.78 £2.67	Min.: 1 Mult.: 1 : 300	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Single		17.5 mm	15.24 mm	5.72 mm			Reel, Cut Tape