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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.	Product	Type	Termination Style	Frequency Range	Inductance	Isolation Voltage	Minimum Operating Temperature	Maximum Operating Temperature	Number of Channels	Package/Case	Length	Width	Height	Series	Qualification	Packaging
Audio Transformers / Signal Transformers 1812WBT SMT Wideband 1:1 4-200 MHz 1812WBT-3LC Coilcraft 1: £2.48 3,123In 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	3,123In Stock	Cut Tape £2.48 £1.87 £1.78 £1.67 Reel £1.48 View £1.59 £1.53 £1.42 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 458In Stock 2,450On Order	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	458In Stock 2,450On Order On Order Ship Dates Mfr. No: DA2034-ALD Stock: 458 Can Dispatch Immediately On Order: 1,400 Expected 06/11/2026 1,050 Expected 07/12/2026 Factory Lead Time: 10 Weeks	Cut Tape £4.91 £3.81 £3.66 £3.54 Reel £3.29 View £3.43 £3.19 £3.08 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 FA2470 Flyback For STMicro STLC3075 FA2470-ALD Coilcraft 1: £3.17 801In Stock	Mfr. Part No. FA2470-ALD Mouser Part No 994-FA2470-ALD	Coilcraft	Audio Transformers / Signal Transformers FA2470 Flyback For STMicro STLC3075 Learn More about Coilcraft power magnetics	Datasheet	801In Stock	Cut Tape £3.17 £2.39 £2.28 £2.14 Reel £1.89 View £2.03 £1.96 £1.83 MouseReel Available	Min.: 1 Mult.: 1 : 450	Flyback Transformers	Flyback	SMD/SMT	10 kHz			- 40 C	+ 85 C	Single		10.92 mm	8.6 mm	9.02 mm	FA2470		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port H1112NL Pulse Electronics 1: £4.02 441In Stock	Mfr. Part No. H1112NL Mouser Part No 673-H1112NL	Pulse Electronics	Audio Transformers / Signal Transformers 100BaseTX SMD NonPoE 1-Port Learn More about Pulse Electronics pulselantrans	Datasheet	441In Stock	£4.02 £3.55 £3.28 £3.20 View £3.15 £3.09 £3.03 £2.80 £2.78	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	100 kHz to 100 MHz	350 uH	1.5 kV	0 C	+ 70 C	Single		14.81 mm	14.73 mm	4.88 mm	H1112		Tube
Audio Transformers / Signal Transformers 1000Base-T SMD PoE 350uH .65Ohms 1-Port H6062FNLT Pulse Electronics 1: £4.57 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 £4.57 £3.60 £3.46 £3.34 Reel £2.80 View £3.16 £2.73 £2.49 £2.48	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 417In 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	417In Stock	£6.08 £5.19 £4.85 £4.48 View £4.22 £4.04 £4.02 £3.96 £3.95	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 £2.53 £2.44 Reel £2.00 View £2.14 £2.07 £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 £4.72 £4.53 £4.39 Reel £4.07 View £4.26 £3.88 £3.43 £3.42 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 SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Port PE-68678NLT Pulse Electronics 1: £4.34 789In Stock	Mfr. Part No. PE-68678NLT Mouser Part No 673-PE-68678NLT	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Port	Datasheet	789In Stock	Cut Tape £4.34 £3.68 £3.53 £3.41 Reel £2.83 View £3.31 £3.18 £2.76 £2.65 MouseReel Available	Min.: 1 Mult.: 1 : 600	ISDN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	600 nH	1.5 kV	0 C	+ 70 C	Dual		12.83 mm	7.11 mm	6.22 mm			Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 10GBase-T SMD PoE 120uH 1-Port H7029FNL Pulse Electronics 1: £8.28 266In Stock	Mfr. Part No. H7029FNL Mouser Part No 673-H7029FNL	Pulse Electronics	Audio Transformers / Signal Transformers 10GBase-T SMD PoE 120uH 1-Port Learn More about Pulse Electronics pulse poe solutions	Datasheet	266In Stock	£8.28 £7.04 £6.74 £6.52 View £5.93 £5.38 Quote	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 500 MHz	120 uH	1.5 kV	0 C	+ 70 C	Single		13.7 mm	12.2 mm	5.72 mm	Discrete LAN		Tube
Audio Transformers / Signal Transformers HDBase-T SMD PoE+ 180uH 1-Port HD8005FNL Pulse Electronics 1: £6.98 315In Stock	Mfr. Part No. HD8005FNL Mouser Part No 673-HD8005FNL	Pulse Electronics	Audio Transformers / Signal Transformers HDBase-T SMD PoE+ 180uH 1-Port Learn More about Pulse Electronics pulse hdbaset transformers	Datasheet	315In Stock	£6.98 £6.45 £6.29 £5.98 View £5.33 £4.82	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 500 MHz	100 uH	1.5 kV	0 C	+ 70 C	Single		15 mm	13.7 mm	5.72 mm			Tube
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-port HX5004ENL Pulse Electronics 1: £5.61 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	£5.61 £4.26 £4.08 £4.05 View £3.47 £3.45 £3.40	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: £3.88 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	£3.88 £3.70 £3.58 £3.54 View £3.36 £3.14	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 - ATB3225-50011CT-T000 TDK 1: £1.19 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 £1.19 £1.07 £1.00 £0.943 View Reel £0.586 £0.899 £0.871 £0.586	Min.: 1 Mult.: 1 : 1,000	Baluns	Module							Single					ATB-CT		Reel, Cut Tape
Audio Transformers / Signal Transformers FA2805 SMT Flyback For Si341, Si3402 FA2805-CLD Coilcraft 1: £3.88 833In Stock 2,275On Order	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	833In Stock 2,275On Order On Order Ship Dates Mfr. No: FA2805-CLD Stock: 833 Can Dispatch Immediately On Order: 875 Expected 28/09/2026 1,400 Expected 23/11/2026 Factory Lead Time: 10 Weeks	Cut Tape £3.88 £2.93 £2.79 £2.62 Reel £2.39 View £2.50 £2.32 £2.24 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: £5.60 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 £5.60 £4.36 £4.17 £4.05 Reel £3.76 View £3.92 £3.64 £3.53 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: £2.24 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 £2.24 £1.69 £1.62 £1.51 Reel £1.38 View £1.44 £1.34 £1.30 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 £2.96 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 E4/STM-01/STS-3/OC-3 16P SMD Single Ch TG04-TDK2NSRL HALO Electronics 1: £3.54 985In Stock	Mfr. Part No. TG04-TDK2NSRL Mouser Part No 493-TG04-TDK2NSRL	HALO Electronics	Audio Transformers / Signal Transformers E4/STM-01/STS-3/OC-3 16P SMD Single Ch Learn More about HALO Electronics halo telecom transformers	Datasheet	985In Stock	£3.54 £3.20 £3.06 £2.85 View £2.39 £2.09	Min.: 1 Mult.: 1	Isolation Transformers	Module	SMD/SMT	8 MHz to 240 MHz	36 uH	1.5 kV	- 40 C	+ 85 C	Dual	SMD-6	8.13 mm	7.11 mm	5.08 mm	SMD-E4		Tube
Audio Transformers / Signal Transformers 10GBase-T SMD 120uH 1:1 GEN2 SMD H7028FNL Pulse Electronics 1: £7.98 233In Stock	Mfr. Part No. H7028FNL Mouser Part No 673-H7028FNL	Pulse Electronics	Audio Transformers / Signal Transformers 10GBase-T SMD 120uH 1:1 GEN2 SMD	Datasheet	233In Stock	£7.98 £6.84 £6.56 £6.34 View £5.70 £5.19 £5.12 Quote	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 500 MHz	120 uH	1.5 kV	0 C	+ 70 C	Quad		15 mm	13.7 mm	5.72 mm	10GBase-T		Tube
Audio Transformers / Signal Transformers MDL SIN XFMR-CMC AEC-Q200 HM1238NL Pulse Electronics 1: £2.58 802In Stock	Mfr. Part No. HM1238NL Mouser Part No 673-HM1238NL	Pulse Electronics	Audio Transformers / Signal Transformers MDL SIN XFMR-CMC AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	802In Stock	£2.58 £2.43 £2.41 £2.33 View £2.28 £2.20 £2.17	Min.: 1 Mult.: 1	Signal Transformers		SMD/SMT		300 uH	4.3 kV	- 40 C	+ 150 C	Single		8.38 mm	7.69 mm	4.25 mm	BMS	AEC-Q200	Tube
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Port HX5014NLT Pulse Electronics 1: £13.60 719In Stock	Mfr. Part No. HX5014NLT Mouser Part No 673-HX5014NLT	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Port Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	719In Stock	Cut Tape £13.60 £11.49 £10.83 £10.31 Reel £9.38 View £10.07 £8.66 MouseReel Available	Min.: 1 Mult.: 1 : 250	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz		1.5 kV	- 40 C	+ 85 C	Single		27.813 mm	15.367 mm	7.239 mm	HX5014		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers THT T1/CEPT/ISDN-Pri 1200uH 1.3Ohm 1-Por PE-65351NL Pulse Electronics 1: £4.11 790In Stock	Mfr. Part No. PE-65351NL Mouser Part No 673-PE-65351NL	Pulse Electronics	Audio Transformers / Signal Transformers THT T1/CEPT/ISDN-Pri 1200uH 1.3Ohm 1-Por	Datasheet	790In Stock	£4.11 £3.53 £3.39 £2.76 View £2.67 £2.59 £2.51 £2.31	Min.: 1 Mult.: 1	ISDN Transformers	Module	Through Hole	50 kHz to 3 MHz	1.2 mH	1.5 kV	0 C	+ 70 C	Dual	HC/3	12.7 mm	8.89 mm	6.35 mm			Tube
Audio Transformers / Signal Transformers THT T1/CEPT/ISDN-Pri 1200uH 1Ohm 1-Port PE-65778NL Pulse Electronics 1: £4.16 1,590In Stock	Mfr. Part No. PE-65778NL Mouser Part No 673-PE-65778NL	Pulse Electronics	Audio Transformers / Signal Transformers THT T1/CEPT/ISDN-Pri 1200uH 1Ohm 1-Port	Datasheet	1,590In Stock	£4.16 £3.76 £3.61 £3.46 View £3.31 £2.76 £2.65 £2.58	Min.: 1 Mult.: 1	ISDN Transformers	Module	Through Hole		1.2 mH	1.5 kV	- 40 C	+ 85 C	Dual	12.7 mm x 8.89 mm x 6.35 mm	12.7 mm	8.89 mm	6.35 mm			Tube
Audio Transformers / Signal Transformers 12uH 3KV 1:2CT:1 2% AEC-Q200 BX6150NL Pulse Electronics 1: £4.03 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	£4.03 £3.27 £2.68 £2.58 View £2.50 £2.25 £1.96	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