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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 (EUR) 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 DA2033 Cap Chrgr For Linear LT3750/51 DA2033-ALD Coilcraft 1: 5,98 € 2 680In Stock 1 000Expected 29/10/2026	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 680In Stock 1 000Expected 29/10/2026	Cut Tape 5,98 € 5,10 € 4,90 € 4,75 € Reel 4,18 € View 4,40 € 4,02 € 3,90 € 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: 8,82 € 562In 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	562In Stock	Cut Tape 8,82 € 7,80 € 7,43 € 7,29 € Reel 6,78 € View 7,07 € 6,55 € 6,35 € 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: 3,80 € 2 148In 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	2 148In Stock	Cut Tape 3,80 € 3,00 € 2,90 € 2,70 € Reel 2,56 € View 2,45 € 2,41 € 2,33 € 2,22 € 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 Wideband RF, SMD 250mA 1:1sec SWB1010-SMLD Coilcraft 1: 3,53 € 2 371In Stock 2 000Expected 20/11/2026	Mfr. Part No. SWB1010-SMLD Mouser Part No 994-SWB1010-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	2 371In Stock 2 000Expected 20/11/2026	Cut Tape 3,53 € 2,87 € 2,84 € Reel 2,42 € 2,30 € View 2,23 € 2,16 € MouseReel Available	Min.: 1 Mult.: 1 : 500	RF Transformers		SMD/SMT	5 kHz to 100 MHz	780 uH			500 V	- 40 C	+ 85 C	Single	13.21 mm x 7.87 mm x 5.72 mm	13.21 mm	7.87 mm	5.72 mm	SWB		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers E4/STM-01/STS-3/OC-3 16P SMD Single Ch TG04-TDK2NSRL HALO Electronics 1: 3,79 € 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	3,79 € 3,59 € 3,48 € 3,27 € View 2,74 € 2,46 €	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 1000BaseT SMD NonPoE 350uH .65Ohms 2-Port H5200NL Pulse Electronics 1: 11,87 € 168In Stock	Mfr. Part No. H5200NL Mouser Part No 673-H5200NL	Pulse Electronics	Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH .65Ohms 2-Port Learn More about Pulse Electronics pulse 1gigabit poe poeplus smd transformers	Datasheet	168In Stock	11,87 € 10,72 € 10,14 € 9,61 € View 8,41 € 8,40 € 8,25 € 8,17 € Quote	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 125 MHz	350 uH			1.5 kV	0 C	+ 70 C	2 Channel	BGA	14.73 mm	17.27 mm	11.18 mm			Tray
Audio Transformers / Signal Transformers 10GBase-T SMD 120uH 1:1 GEN2 SMD H7028FNL Pulse Electronics 1: 9,15 € 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	9,15 € 8,20 € 7,79 € 7,54 € View 6,68 € 6,39 € 6,24 € 6,10 € 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: 3,68 € 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	3,68 € 3,16 € 3,03 € 2,93 € View 2,85 € 2,73 € 2,67 €	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 THT T1/CEPT/ISDN-Pri 1200uH 1.3Ohm 1-Por PE-65351NL Pulse Electronics 1: 4,71 € 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	4,71 € 4,27 € 4,09 € 3,47 € View 3,36 € 3,23 € 3,13 € 3,11 € 2,93 €	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: 4,76 € 1 080In 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 080In Stock	4,76 € 4,31 € 4,14 € 3,97 € View 3,84 € 3,35 € 3,23 € 3,11 € 3,08 €	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 1812WBT SMT Wideband 1:1 4-200 MHz 1812WBT-3LC Coilcraft 1: 2,85 € 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 2,85 € 2,30 € 2,22 € 2,07 € Reel 1,94 € View 2,00 € 1,85 € 1,80 € 1,74 € 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: 5,63 € 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 5,63 € 4,81 € 4,61 € 4,47 € Reel 3,94 € View 4,15 € 3,79 € 3,68 € 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 100B-1001FX iNRCORE 1: 27,00 € 86In Stock	Mfr. Part No. 100B-1001FX Mouser Part No 673-100B-1001FX	iNRCORE	Audio Transformers / Signal Transformers	Datasheet	86In Stock	27,00 € 24,06 € 22,99 € 22,68 € View 20,59 € 20,46 € Quote	Min.: 1 Mult.: 1								1500 Vrms	- 55 C	+ 125 C								Tube
Audio Transformers / Signal Transformers POE13P Flyback PoE 13uH 12 V 1.08 A POE13P-12LD Coilcraft 1: 3,13 € 3 018In Stock 19 515On 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 018In Stock 19 515On Order On Order Ship Dates Mfr. No: POE13P-12LD Stock: 3 018 Can Dispatch Immediately On Order: 90 Expected 27/10/2026 8 925 Expected 20/11/2026 10 500 Expected 28/12/2026 Factory Lead Time: 10 Weeks	Cut Tape 3,13 € 2,54 € 2,44 € 2,29 € Reel 2,19 € View 2,14 € 2,04 € 1,98 € 1,91 € 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: 6,43 € 470In 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	470In Stock	Cut Tape 6,43 € 5,50 € 5,27 € 5,11 € Reel 4,50 € View 4,74 € 4,33 € 4,21 € 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: 5,68 € 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 5,68 € 4,85 € 4,15 € Reel 3,75 € 3,73 € 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 DIGITAL AUDIO TRANSFORMER DA102JC-R Murata Power Solutions 1: 1,84 € 4 475In Stock 5 000Expected 14/12/2026	Mfr. Part No. DA102JC-R Mouser Part No 580-DA102JC-R	Murata Power Solutions	Audio Transformers / Signal Transformers DIGITAL AUDIO TRANSFORMER Learn More about Murata Power Solutions MurataDA100J	Datasheet	4 475In Stock 5 000Expected 14/12/2026	Cut Tape 1,84 € 1,67 € 1,56 € 1,51 € Reel 1,29 € View 1,44 € 1,22 € 1,20 € MouseReel Available	Min.: 1 Mult.: 1 : 500	Audio Transformers		SMD/SMT	50 Hz to 60 Hz	1.9 mH to 4 mH	110 Ohms		2 kV	- 40 C	+ 85 C	Single	SMD-6	9.52 mm	9 mm	6.35 mm	DA100J		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1000BaseT SMD NonPoE 350uH 1-port HX5004ENL Pulse Electronics 1: 6,30 € 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	6,30 € 5,40 € 5,18 € 5,01 € View 4,65 € 4,09 € 4,00 € 3,84 €	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: 4,71 € 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	4,71 € 4,29 € 4,15 € 4,02 € View 3,91 € 3,67 €	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: 6,52 € 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	6,52 € 5,89 € 5,65 € 5,39 € View 5,38 € 4,99 € 4,11 € 4,09 €	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: 1,92 € 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 1,92 € 1,33 € 1,01 € 0,877 € Reel 0,774 € View 0,789 € 0,671 €	Min.: 1 Mult.: 1 : 1 000	Baluns	Module									Single					ATB-CT		Reel, Cut Tape
Audio Transformers / Signal Transformers CJ5143 for NCP5080 350V 1.2A SMT CJ5143-ALC Coilcraft 1: 5,11 € 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 5,11 € 3,97 € Reel 3,38 € 3,26 € 3,16 € 3,14 € 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 1000BaseT SMD NonPoE 350uH 1-Port H5084FNL Pulse Electronics 1: 4,64 € 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	4,64 € 4,19 € 3,99 € 3,86 € View 3,74 € 3,29 € 3,04 € 2,97 €	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: 5,25 € 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 5,25 € 4,48 € 4,30 € 4,16 € Reel 3,45 € View 3,79 € 3,35 € 3,19 € 3,06 €	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: 6,97 € 387In 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	387In Stock	6,97 € 6,11 € 5,91 € 5,41 € View 5,14 € 4,85 € 4,77 € 4,69 € 4,64 €	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