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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	Isolation Voltage	Minimum Operating Temperature	Maximum Operating Temperature	Number of Channels	Package/Case	Length	Width	Height	Series	Qualification	Packaging
Audio Transformers / Signal Transformers CJ5143 for NCP5080 350V 1.2A SMT CJ5143-ALC Coilcraft 1: 5,11 € 1.150In 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	1.150In Stock 16.500On Order On Order Ship Dates Mfr. No: CJ5143-ALC Stock: 1.150 Can Dispatch Immediately On Order: 7.250 Expected 11/23/2026 9.250 Expected 1/15/2027 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 DA2033 Cap Chrgr For Linear LT3750/51 DA2033-ALD Coilcraft 1: 5,98 € 2.606In Stock 1.000Expected 11/9/2026	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	2.606In Stock 1.000Expected 11/9/2026	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 € 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 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 € 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 3,80 € 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 11/20/2026	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 11/20/2026	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 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 FA2805 SMT Flyback For Si341, Si3402 FA2805-CLD Coilcraft 1: 4,46 € 1.358In Stock 1.400Expected 11/23/2026	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	1.358In Stock 1.400Expected 11/23/2026	Cut Tape 4,46 € 3,53 € 3,41 € 3,17 € Reel 3,01 € View 2,88 € 2,84 € 2,74 € 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 POE13P Flyback PoE 13uH 12 V 1.08 A POE13P-12LD Coilcraft 1: 3,13 € 2.233In 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	2.233In Stock 19.425On Order On Order Ship Dates Mfr. No: POE13P-12LD Stock: 2.233 Can Dispatch Immediately On Order: 8.925 Expected 11/20/2026 10.500 Expected 12/28/2026 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 € 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 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 1812WBT SMT Wideband 1:1 4-200 MHz 1812WBT-3LC Coilcraft 1: 2,85 € 3.048In 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	3.048In 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 € 1.749In Stock 1.050Expected 12/7/2026	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	1.749In Stock 1.050Expected 12/7/2026	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 1000BaseT SMD NonPoE 350uH 1-Port H5084FNL Pulse Electronics 1: 4,64 € 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	4,64 € 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 € 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	6,97 € 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
Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 1-Port HX2260FNLT Pulse Electronics 1: 3,53 € 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 3,53 € 3,20 € 2,98 € 2,52 € Reel 2,43 € View 2,43 € 2,42 € 2,15 € 2,11 €	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: 6,31 € 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 6,31 € 5,70 € 5,48 € 5,31 € Reel 4,77 € View 5,03 € 4,66 € 4,14 € 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 E4/STM-01/STS-3/OC-3 16P SMD Single Ch TG04-TDK2NSRL HALO Electronics 1: 3,66 € 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	3,66 € 3,54 € 3,46 € 3,27 € View 2,74 € 2,55 € Quote	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 10/100BASE-TX SMD Ultra 16P 1-Port TG110-S055N2LFTR HALO Electronics 1: 2,26 € 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 2,26 € 2,17 € 2,10 € 2,04 € Reel 1,52 € View 1,88 € 1,73 € 1,51 € 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: 3,64 € 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 3,64 € 2,87 € 2,15 € 2,00 € 1,99 € Reel 1,70 €	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