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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	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 1Ohm 2-Port TX1099NL Pulse Electronics 1: £4.60 38In Stock	Mfr. Part No. TX1099NL Mouser Part No 673-TX1099NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH 1Ohm 2-Port	Datasheet	38In Stock	£4.60 £4.16 £3.90 £3.78 View £3.71 £3.13 £2.83 £2.75 £2.71	Min.: 1 Mult.: 1	ISDN Transformers	Module	SMD/SMT	50 kHz to 3 MHz	800 nH	1.5 kV	- 40 C	+ 85 C	Dual		12.83 mm	9.53 mm	6.22 mm		Tube
Audio Transformers / Signal Transformers WE-LANMX 19in rear mount single port 749699910 Wurth Elektronik 1: £3.46 71In Stock	Mfr. Part No. 749699910 Mouser Part No 710-749699910	Wurth Elektronik	Audio Transformers / Signal Transformers WE-LANMX 19in rear mount single port Learn More about Wurth Elektronik wurth m12 circular connectors integrated magnetics	Datasheet	71In Stock	£3.46 £3.09 £2.73	Min.: 1 Mult.: 1	Accessories													WE-LANMX	Tray
Audio Transformers / Signal Transformers 1:1 75ohms 5-200MHz 10dB ATB3225-75011CT-T001 TDK 1: £1.68 418In Stock 1,000Expected 01/12/2026	Mfr. Part No. ATB3225-75011CT-T001 Mouser Part No 810-ATB3275011CTT001	TDK	Audio Transformers / Signal Transformers 1:1 75ohms 5-200MHz 10dB Learn More about TDK ATB3225trans	Datasheet	418In Stock 1,000Expected 01/12/2026	Cut Tape £1.68 £1.16 £0.882 £0.766 £0.74 Reel £0.74 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Baluns	Module							Single					ATB-CT	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers - ATB3225-75034CT-T000 TDK 1: £1.73 980In Stock	Mfr. Part No. ATB3225-75034CT-T000 Mouser Part No 810-ATB3275034CTT000	TDK	Audio Transformers / Signal Transformers - Learn More about TDK ATB3225trans	Datasheet	980In Stock	Cut Tape £1.73 £1.22 £1.09 £1.00 Reel £0.818 View £0.969 £0.796 £0.78	Min.: 1 Mult.: 1 : 1,000	Baluns	Module							Single					ATB-CT	Reel, Cut Tape
Audio Transformers / Signal Transformers ALANC010G2-EADT ALANC010G2-EADT ABRACON 1: £0.578 54In Stock	Mfr. Part No. ALANC010G2-EADT Mouser Part No 815-ALANC010G2-EADT	ABRACON	Audio Transformers / Signal Transformers ALANC010G2-EADT Learn More about ABRACON ethernet chip transformers	Datasheet	54In Stock	Cut Tape £0.578 £0.523 £0.488 £0.474 Reel £0.395 View £0.455 £0.442 £0.428 £0.384 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Isolation Transformers		SMD/SMT		120 uH		- 40 C	+ 85 C		SMD-6	4.6 mm	3.4 mm	3.5 mm	ALANC010G1	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers LAN 1 Port 10/100 Base-TX T,C ALANS100X1-2F10ET ABRACON 1: £1.04 312In Stock 600Expected 05/02/2027	Mfr. Part No. ALANS100X1-2F10ET Mouser Part No 815-ALANS100X12F10ET	ABRACON	Audio Transformers / Signal Transformers LAN 1 Port 10/100 Base-TX T,C Learn More about ABRACON alans100x1 lan transformer modules	Datasheet	312In Stock 600Expected 05/02/2027	Cut Tape £1.04 £0.943 £0.882 £0.856 Reel £0.788 View £0.818 £0.748 £0.719 £0.707 MouseReel Available	Min.: 1 Mult.: 1 : 600	LAN Transformers	LAN	SMD/SMT	100 kHz to 100 MHz	350 uH		0 C	+ 70 C	Dual		12.8 mm	6.9 mm	5.45 mm	ALANS100X1	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT B78476A8317A003 TDK 1: £3.27 30In Stock 350Expected 16/11/2026	Mfr. Part No. B78476A8317A003 Mouser Part No 871-B78476A8317A3	TDK	Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	30In Stock 350Expected 16/11/2026	Cut Tape £3.27 £2.89 £2.74 £2.60 Reel £2.38 View £2.30 £2.17 £2.08 £2.02 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 C1588 TI LM5070 7uH 5.0 V 1.4 A C1588-ALD Coilcraft 1: £3.71 90In Stock	Mfr. Part No. C1588-ALD Mouser Part No 994-C1588-ALD	Coilcraft	Audio Transformers / Signal Transformers C1588 TI LM5070 7uH 5.0 V 1.4 A Learn More about Coilcraft power magnetics	Datasheet	90In Stock	Cut Tape £3.71 £2.93 £2.83 £2.64 Reel £2.50 View £2.39 £2.36 £2.28 Quote MouseReel Available	Min.: 1 Mult.: 1 : 200	Flyback Transformers	Flyback	SMD/SMT				- 40 C	+ 85 C	Single		12.7 mm	10.5 mm	11 mm	C1588	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers GA3136 SMT Flyback For TI UCC2809 GA3136-BL Coilcraft 1: £6.20 39In Stock	Mfr. Part No. GA3136-BL Mouser Part No 994-GA3136-BL	Coilcraft	Audio Transformers / Signal Transformers GA3136 SMT Flyback For TI UCC2809 Learn More about Coilcraft power magnetics	Datasheet	39In Stock	£6.20 £5.50 £5.28 £5.12 View £4.96 £4.59 £4.43 £4.31 Quote	Min.: 1 Mult.: 1	Flyback Transformers	Flyback	SMD/SMT	150 kHz	35 uH	1.5 kV	- 40 C	+ 125 C	Single		26.75 mm	26 mm	14 mm	GA3136	Tray
Audio Transformers / Signal Transformers HA4018 for GreenMode 5 V, -15 V 0.05 A HA4018-AL Coilcraft 1: £5.11 30In Stock	Mfr. Part No. HA4018-AL Mouser Part No 994-HA4018-AL	Coilcraft	Audio Transformers / Signal Transformers HA4018 for GreenMode 5 V, -15 V 0.05 A Learn More about Coilcraft power magnetics	Datasheet	30In Stock	Cut Tape £5.11 £4.20 Reel £3.57 £3.37 £3.26 View £3.15 £3.13 MouseReel Available	Min.: 1 Mult.: 1 : 100	Flyback Transformers	Flyback	Through Hole	50 kHz	2.2 mH	3 kV	- 40 C	+ 85 C	Single		20.9 mm	20.9 mm	12 mm	HA4018	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers HA4061 For LT 3751 500V 5A HA4061-AL Coilcraft 1: £5.29 1In Stock	Mfr. Part No. HA4061-AL Mouser Part No 994-HA4061-AL	Coilcraft	Audio Transformers / Signal Transformers HA4061 For LT 3751 500V 5A Learn More about Coilcraft power magnetics	Datasheet	1In Stock	£5.29 £4.70 £4.50 £4.37 View £4.23 £3.97 £3.84 £3.73 £3.68	Min.: 1 Mult.: 1	Flyback Transformers	Flyback	Through Hole	100 kHz	125 uH	3 kV	- 40 C	+ 85 C	Single		29.8 mm	27.9 mm	25.3 mm	HA4061	Tray
Audio Transformers / Signal Transformers KA4823 Flyback 220 Vac 10.5A KA4823-CL Coilcraft 1: £12.97 19In Stock	Mfr. Part No. KA4823-CL Mouser Part No 994-KA4823-CL	Coilcraft	Audio Transformers / Signal Transformers KA4823 Flyback 220 Vac 10.5A	Datasheet	19In Stock	£12.97 £11.41 £11.05 £10.83 View £10.43 £9.94 £9.65	Min.: 1 Mult.: 1	Flyback Transformers	Flyback	Through Hole	150 kHz	28 uH	3 kV	- 40 C	+ 85 C	Single		45.72 mm	47.72 mm	30.48 mm	KA4823	Tray
Audio Transformers / Signal Transformers NA5743 12W 0.012Ohms For LT8584 NA5743-ALD Coilcraft 1: £3.89 360In Stock 400Expected 05/01/2027	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	360In Stock 400Expected 05/01/2027	Cut Tape £3.89 £3.08 £2.98 £2.77 Reel £2.63 View £2.51 £2.48 £2.39 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 NA6223 10W 0.33Ohms For TPS23753A NA6223-ALD Coilcraft 1: £3.98 67In Stock	Mfr. Part No. NA6223-ALD Mouser Part No 994-NA6223-ALD	Coilcraft	Audio Transformers / Signal Transformers NA6223 10W 0.33Ohms For TPS23753A Learn More about Coilcraft power magnetics	Datasheet	67In Stock	Cut Tape £3.98 £3.14 £3.03 £2.83 Reel £2.68 View £2.57 £2.53 £2.44 Quote MouseReel Available	Min.: 1 Mult.: 1 : 175		Flyback	SMD/SMT	1 kHz	180 uH	1.5 kV	- 40 C	+ 85 C	Single		13.46 mm	13 mm	12.7 mm	NA6223	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers POE13P Flyback PoE 13uH 12 V 1.08 A POE13P-12LD Coilcraft 1: £2.73 721In 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	721In Stock 19,425On Order On Order Ship Dates Mfr. No: POE13P-12LD Stock: 721 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 POE13P Flyback PoE 13uH 3.3 V 4.0 A POE13P-33LD Coilcraft 1: £4.23 138In Stock	Mfr. Part No. POE13P-33LD Mouser Part No 994-POE13P-33LD	Coilcraft	Audio Transformers / Signal Transformers POE13P Flyback PoE 13uH 3.3 V 4.0 A Learn More about Coilcraft poexp flyback transformers	Datasheet	138In Stock	Cut Tape £4.23 £3.29 £3.16 £3.06 Reel £2.79 View £2.96 £2.71 £2.61 £2.60 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 Flyback PoE 22W 21uH 5V 6.2A POE22PR-50ED Coilcraft 1: £4.80 184In Stock	Mfr. Part No. POE22PR-50ED Mouser Part No 994-POE22PR-50ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 22W 21uH 5V 6.2A Learn More about Coilcraft flyback forward poe transformers	Datasheet	184In Stock	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 Flyback PoE 30W 48uH 5V 3.6A POE30PR-50ED Coilcraft 1: £4.80 142In Stock	Mfr. Part No. POE30PR-50ED Mouser Part No 994-POE30PR-50ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 30W 48uH 5V 3.6A Learn More about Coilcraft flyback forward poe transformers	Datasheet	142In Stock	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	48 uH		- 40 C	+ 125 C	Single		14.5 mm	13 mm	14 mm	POE21PR	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Forward PoE 35W 128uH 5V 15% POE35PR-50ED Coilcraft 1: £4.80 233In Stock 300Expected 12/11/2026	Mfr. Part No. POE35PR-50ED Mouser Part No 994-POE35PR-50ED	Coilcraft	Audio Transformers / Signal Transformers Forward PoE 35W 128uH 5V 15% Learn More about Coilcraft flyback forward poe transformers	Datasheet	233In Stock 300Expected 12/11/2026	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		SMD/SMT	200 kHz	128 uH		- 40 C	+ 125 C	Single		14.5 mm	13 mm	14 mm	POE21PR	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 48V 3.7A POE40Q-48ED Coilcraft 1: £4.88 68In Stock	Mfr. Part No. POE40Q-48ED Mouser Part No 994-POE40Q-48ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 48V 3.7A Learn More about Coilcraft high power poe transformers	Datasheet	68In Stock	Cut Tape £4.88 £3.79 £3.64 £3.53 Reel £3.21 View £3.40 £3.11 £3.00 £2.99 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	27.8 uH		- 40 C	+ 125 C	Single		14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 24V 4.7A POE51Q-24ED Coilcraft 1: £4.88 65In Stock 450On Order	Mfr. Part No. POE51Q-24ED Mouser Part No 994-POE51Q-24ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 24V 4.7A Learn More about Coilcraft high power poe transformers	Datasheet	65In Stock 450On Order On Order Ship Dates Mfr. No: POE51Q-24ED Stock: 65 Can Dispatch Immediately On Order: 300 Expected 05/01/2027 150 Expected 15/01/2027 Factory Lead Time: 10 Weeks	Cut Tape £4.88 £3.79 £3.64 £3.53 Reel £3.21 View £3.40 £3.11 £3.00 £2.99 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	22.2 uH		- 40 C	+ 125 C	Single		14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 48V 4.7A POE51Q-48ED Coilcraft 1: £4.88 151In Stock	Mfr. Part No. POE51Q-48ED Mouser Part No 994-POE51Q-48ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 48V 4.7A Learn More about Coilcraft high power poe transformers	Datasheet	151In Stock	Cut Tape £4.88 £3.79 £3.64 £3.53 Reel £3.21 View £3.40 £3.11 £3.00 £2.99 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	22.2 uH		- 40 C	+ 125 C	Single		14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers PWB Wideband RF 1:1.5 0.030-300 MHz PWB-1.5-ALC Coilcraft 1: £2.97 300In Stock	Mfr. Part No. PWB-1.5-ALC Mouser Part No 994-PWB-1.5-ALC	Coilcraft	Audio Transformers / Signal Transformers PWB Wideband RF 1:1.5 0.030-300 MHz	Datasheet	300In Stock	Cut Tape £2.97 £2.44 Reel £2.08 £2.02 £1.93 View £1.87 £1.81 MouseReel Available	Min.: 1 Mult.: 1 : 250	RF Transformers													PWB	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers PWB Wideband RF 1:4 0.140-700 MHz PWB-4-BLC Coilcraft 1: £3.13 392In Stock	Mfr. Part No. PWB-4-BLC Mouser Part No 994-PWB-4-BLC	Coilcraft	Audio Transformers / Signal Transformers PWB Wideband RF 1:4 0.140-700 MHz	Datasheet	392In Stock	Cut Tape £3.13 £2.48 Reel £2.11 £2.02 £1.99 View £1.92 £1.82 MouseReel Available	Min.: 1 Mult.: 1 : 250	RF Transformers		SMD/SMT	140 kHz to 700 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 0.03-250 MHz PWB1010-1LC Coilcraft 1: £2.92 495In Stock	Mfr. Part No. PWB1010-1LC Mouser Part No 994-PWB1010-1LC	Coilcraft	Audio Transformers / Signal Transformers PWB Wideband RF 1:1 0.03-250 MHz	Datasheet	495In Stock	Cut Tape £2.92 £2.41 Reel £2.05 £2.00 £1.90 View £1.84 £1.79 MouseReel Available	Min.: 1 Mult.: 1 : 250	RF Transformers		SMD/SMT	300 kHz to 250 MHz	95 uH, 95 uH	300 V	- 40 C	+ 85 C	Single		6.77 mm	6.48 mm	4.45 mm	PWB	Reel, Cut Tape, MouseReel