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Transformers Audio & Signal

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Transformers for Audio Applications

Audio transformers can used to step up or step down a signal voltage, increase or decrease the impedance of a circuit, convert a circuit from unbalanced to balanced and vice versa, block DC current in a circuit while allowing AC current to flow, or electrically isolate one audio device from another. Learn More

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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.	RoHS	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 FA2805 SMT Flyback For Si341, Si3402 FA2805-CLD Coilcraft 1: £3.89 1,356In Stock 1,400Expected 23/11/2026	Mfr. Part No. FA2805-CLD Mouser Part No 994-FA2805-CLD	Coilcraft	Audio Transformers / Signal Transformers FA2805 SMT Flyback For Si341, Si3402 Learn More about Coilcraft power magnetics	Datasheet	1,356In Stock 1,400Expected 23/11/2026	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 : 175		Flyback Transformers	Flyback	SMD/SMT	200 kHz	40 uH			1.5 kV	- 40 C	+ 85 C	Single		13.46 mm	13 mm	12.7 mm	FA2805	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 5.0 V 6 A POE300F-50LD Coilcraft 1: £5.61 464In 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	464In 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 WBC SMT Mini Wdebnd 1:9 0.300-500 MHz WBC9-1LC Coilcraft 1: £4.96 533In 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	533In 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 Flyback PoE 24W 21uH 12V 6.3A POE24PR-12ED Coilcraft 1: £4.80 1,275In 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	1,275In 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 DA2033 Cap Chrgr For Linear LT3750/51 DA2033-ALD Coilcraft 1: £5.22 2,605In Stock 1,000Expected 09/11/2026	Mfr. Part No. DA2033-ALD Mouser Part No 994-DA2033-ALD	Coilcraft	Audio Transformers / Signal Transformers DA2033 Cap Chrgr For Linear LT3750/51 Learn More about Coilcraft power magnetics	Datasheet	2,605In Stock 1,000Expected 09/11/2026	Cut Tape £5.22 £4.45 £4.28 £4.15 Reel £3.65 View £3.84 £3.51 £3.40 MouseReel Available	Min.: 1 Mult.: 1 : 200		Flyback Transformers	Flyback	SMD/SMT	100 kHz	10 uH			1.5 kV	- 40 C	+ 125 C			18 mm	17 mm	9.78 mm	DA2033	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers PoE Plus 850uH DCR=0.24mOhms 1.9A HPX2126LD Coilcraft 1: £7.70 532In Stock	Mfr. Part No. HPX2126LD Mouser Part No 994-HPX2126LD	Coilcraft	Audio Transformers / Signal Transformers PoE Plus 850uH DCR=0.24mOhms 1.9A Learn More about Coilcraft high power poe single path magnetics	Datasheet	532In Stock	Cut Tape £7.70 £6.81 £6.49 £6.36 Reel £5.92 View £6.17 £5.72 £5.54 MouseReel Available	Min.: 1 Mult.: 1 : 300		PoE Transformers	Isolated	SMD/SMT	100 kHz	850 uH			1.5 kV	- 40 C	+ 85 C	Single		15.75 mm	14.22 mm	10.8 mm	HPX2126L	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers POE70P Flyback 7uH 5.0 V 1.4 A POE70P-50LD Coilcraft 1: £3.32 1,948In Stock	Mfr. Part No. POE70P-50LD Mouser Part No 994-POE70P-50LD	Coilcraft	Audio Transformers / Signal Transformers POE70P Flyback 7uH 5.0 V 1.4 A Learn More about Coilcraft poexp flyback transformers	Datasheet	1,948In Stock	Cut Tape £3.32 £2.62 £2.53 £2.36 Reel £2.23 View £2.14 £2.10 £2.03 £1.94 MouseReel Available	Min.: 1 Mult.: 1 : 200		PoE Transformers	Flyback	SMD/SMT	250 kHz					- 40 C	+ 85 C	Single		12.7 mm	10.5 mm	11 mm	POE70P	Reel, Cut Tape, MouseReel
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 1,844In 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	1,844In 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 BALUN RF SGL RAC 1:1CT CX2041ANLT Pulse Electronics 1: £2.65 1,713In Stock	Mfr. Part No. CX2041ANLT Mouser Part No 673-CX2041ANLT	Pulse Electronics	Audio Transformers / Signal Transformers BALUN RF SGL RAC 1:1CT		1,713In Stock	Cut Tape £2.65 £2.15 £1.71 £1.55 Reel £1.26 View £1.50 £1.49 £1.48 £1.24	Min.: 1 Mult.: 1 : 2,000		RF Transformers		SMD/SMT						- 40 C	+ 85 C	Single		3.81 mm	3.81 mm	2.79 mm	CX	Reel, Cut Tape
Audio Transformers / Signal Transformers 10GBase-T SMD NonPoE 200uH 1-Port H7008NL Pulse Electronics 1: £7.11 355In Stock	Mfr. Part No. H7008NL Mouser Part No 673-H7008NL	Pulse Electronics	Audio Transformers / Signal Transformers 10GBase-T SMD NonPoE 200uH 1-Port	Datasheet	355In Stock	£7.11 £6.42 £6.07 £5.88 View £4.96 £4.79 £4.69 £4.61 Quote	Min.: 1 Mult.: 1		LAN Transformers	Module	SMD/SMT	1 MHz to 500 MHz	200 uH	1 Ohms	1 Ohms	1.5 kV	0 C	+ 70 C	Single		13.7 mm	12.2 mm	5.72 mm		Tube
Audio Transformers / Signal Transformers THT T3/DS3/E3/STS-1 40uH 1-Port PE-68629NL Pulse Electronics 1: £6.30 1,901In Stock	Mfr. Part No. PE-68629NL Mouser Part No 673-PE-68629NL	Pulse Electronics	Audio Transformers / Signal Transformers THT T3/DS3/E3/STS-1 40uH 1-Port	Datasheet	1,901In Stock	£6.30 £5.68 £5.45 £5.23 View £5.07 £4.86 £4.18 £3.89 £3.83	Min.: 1 Mult.: 1		Telecom Transformers	Module	Through Hole	500 MHz	100 nH			3 kV	0 C	+ 70 C	Single		12.7 mm	8.89 mm	6.35 mm		Tube
Audio Transformers / Signal Transformers SMD ISDN S-Interface 22mH 4.2Ohms 2-Port T5007NLT Pulse Electronics 1: £7.68 400In Stock	Mfr. Part No. T5007NLT Mouser Part No 673-T5007NL673-T	Pulse Electronics	Audio Transformers / Signal Transformers SMD ISDN S-Interface 22mH 4.2Ohms 2-Port	Datasheet	400In Stock	Cut Tape £7.68 £6.78 £6.46 £6.35 Reel £5.89 View £6.15 £5.71 £5.53 MouseReel Available	Min.: 1 Mult.: 1 : 200		ISDN Transformers	Module	SMD/SMT			2.4 Ohms	4.2 Ohms	2 kV	0 C	+ 70 C	Dual		24.13 mm	14.73 mm	7.37 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers V263 E6.3 SMD TRANSFORMER B78304B1032A003 TDK 1: £4.98 782In Stock	Mfr. Part No. B78304B1032A003 Mouser Part No 871-B78304B1032A3	TDK	Audio Transformers / Signal Transformers V263 E6.3 SMD TRANSFORMER	Datasheet	782In Stock	Cut Tape £4.98 £4.62 £3.95 £3.92 Reel £3.51 View £3.62 £3.54 £3.51 £2.96 MouseReel Available	Min.: 1 Mult.: 1 : 900														8 mm	7 mm	5.7 mm	B78304B	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers PWB Wideband RF 1:4 0.150-500 MHz PWB-4-ALC Coilcraft 1: £2.25 986In 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	986In 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 1000BaseT SMD NonPoE 350uH 1-Port H5084FNL Pulse Electronics 1: £4.05 1,438In Stock	Mfr. Part No. H5084FNL Mouser Part No 673-H5084FNL	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-Port	Datasheet	1,438In Stock	£4.05 £3.66 £3.47 £3.37 View £3.27 £2.75 £2.55 £2.46 £2.44	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 £2.90 View £3.25 £2.82 £2.61 £2.57	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
Audio Transformers / Signal Transformers 10/100Base-T SMD 1-Port HX1178NL Pulse Electronics 1: £6.08 357In Stock	Mfr. Part No. HX1178NL Mouser Part No 673-HX1178NL	Pulse Electronics	Audio Transformers / Signal Transformers 10/100Base-T SMD 1-Port Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	357In Stock	£6.08 £5.33 £4.91 £4.53 View £4.28 £4.07 £4.05 £3.98 £3.96	Min.: 1 Mult.: 1		LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	- 40 C	+ 85 C	Single		25.4 mm	12.83 mm	6.22 mm		Tube
Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 1-Port HX2260FNLT Pulse Electronics 1: £3.08 934In Stock	Mfr. Part No. HX2260FNLT Mouser Part No 673-HX2260FNLT	Pulse Electronics	Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 1-Port Learn More about Pulse Electronics pulse poe solutions	Datasheet	934In Stock	Cut Tape £3.08 £2.79 £2.60 £2.07 Reel £2.01 View £2.02 £1.78 £1.75	Min.: 1 Mult.: 1 : 600		LAN Transformers	Module	SMD/SMT	1 MHz to 125 MHz					- 40 C	+ 85 C	Single		12.7 mm	9.09 mm	5.99 mm	HX	Reel, Cut Tape
Audio Transformers / Signal Transformers 100Base-T SMD NonPoE .6Ohms 1-Port PE-68515LNLT Pulse Electronics 1: £5.51 1,759In Stock	Mfr. Part No. PE-68515LNLT Mouser Part No 673-PE-68515LNLT	Pulse Electronics	Audio Transformers / Signal Transformers 100Base-T SMD NonPoE .6Ohms 1-Port	Datasheet	1,759In Stock	Cut Tape £5.51 £4.98 £4.78 £4.63 Reel £4.16 View £4.39 £4.07 £3.49 MouseReel Available	Min.: 1 Mult.: 1 : 160		LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz				1.5 kV	0 C	+ 70 C	Single		25.4 mm	12.95 mm	9.4 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Telecom Transformer 1CT:1CT 24Term SMD 1000B-5012X iNRCORE 1: £41.00 352In Stock	Mfr. Part No. 1000B-5012X Mouser Part No 673-1000B-5012X	iNRCORE	Audio Transformers / Signal Transformers Telecom Transformer 1CT:1CT 24Term SMD Learn More about iNRCORE pulser 1000 base t transformers	Datasheet	352In Stock	£41.00 £37.23 £35.85 View Quote	Min.: 1 Mult.: 1	No	Telecom Transformers		SMD/SMT	100 kHz to 100 MHz	350 uH			1.5 kV	- 55 C	+ 125 C	Quad		15.11 mm	13.16 mm	6.12 mm	1000B	Tube
Audio Transformers / Signal Transformers 10/100BASE-TX SMD Ultra 16P 1-Port TG110-S055N2LFTR HALO Electronics 1: £1.97 4,876In Stock	Mfr. Part No. TG110-S055N2LFTR Mouser Part No 493-TG110-S055N2LFTR	HALO Electronics	Audio Transformers / Signal Transformers 10/100BASE-TX SMD Ultra 16P 1-Port Learn More about HALO Electronics halo 10 100base tx transformers	Datasheet	4,876In Stock	Cut Tape £1.97 £1.89 £1.83 £1.78 Reel £1.33 View £1.64 £1.51 £1.32 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		LAN Isolation Transformers	Module	SMD/SMT		400 nH			1.5 kV	0 C	+ 70 C	Single	SMD-16	12.7 mm	7.11 mm	5.08 mm	TG110	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers TRANSFORMER AUDIO & SIGNAL CX2039LNLT Pulse Electronics 1: £3.18 1,953In Stock	Mfr. Part No. CX2039LNLT Mouser Part No 673-CX2039LNLT	Pulse Electronics	Audio Transformers / Signal Transformers TRANSFORMER AUDIO & SIGNAL	Datasheet	1,953In Stock	Cut Tape £3.18 £2.51 £1.88 £1.75 £1.59 Reel £1.48	Min.: 1 Mult.: 1 : 2,000		RF Transformers		SMD/SMT	1.5 MHz to 4.5 MHz					- 40 C	+ 85 C	Single	SMD-5	3.81 mm	3.81 mm	2.79 mm	CX	Reel, Cut Tape
Audio Transformers / Signal Transformers Wideband RF 75 Ohm 1:1CT 50-450MHz SMD CX2041NL Pulse Electronics 1: £3.03 3,422In Stock	Mfr. Part No. CX2041NL Mouser Part No 673-CX2041NL	Pulse Electronics	Audio Transformers / Signal Transformers Wideband RF 75 Ohm 1:1CT 50-450MHz SMD	Datasheet	3,422In Stock	£3.03 £2.27 £1.69 £1.46 £1.43	Min.: 1 Mult.: 1		RF Transformers		SMD/SMT	50 kHz to 450 MHz		75 Ohms			- 40 C	+ 85 C	Single		3.81 mm	3.81 mm	2.79 mm	CX20xxNL/LNL	Tray
Audio Transformers / Signal Transformers XFMR,RF,SGL,RAC,1:4CT, T&R NPB CX2047LANLT Pulse Electronics 1: £2.43 1,540In Stock	Mfr. Part No. CX2047LANLT Mouser Part No 673-CX2047LANLT	Pulse Electronics	Audio Transformers / Signal Transformers XFMR,RF,SGL,RAC,1:4CT, T&R NPB	Datasheet	1,540In Stock	Cut Tape £2.43 £1.96 £1.51 £1.34 £1.26 Reel £1.13	Min.: 1 Mult.: 1 : 2,000		RF Transformers		SMD/SMT						- 40 C	+ 85 C			3.81 mm	3.81 mm	2.79 mm		Reel, Cut Tape