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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 (USD) 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	Packaging
Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 5.0 V 6 A POE300F-50LD Coilcraft 1: $7.48 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 $7.48 $6.40 $6.13 $5.94 Reel $5.23 View $5.51 $5.04 $4.90 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: $6.61 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 $6.61 $5.64 $4.83 Reel $4.36 $4.34 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: $6.40 1,275In Stock 450Expected 2026/11/23	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 2026/11/23	Cut Tape $6.40 $4.97 $4.76 $4.62 Reel $4.21 View $4.47 $4.07 $3.93 $3.91 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: $6.95 2,605In Stock 1,000Expected 2026/11/09	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 2026/11/09	Cut Tape $6.95 $5.93 $5.70 $5.52 Reel $4.86 View $5.12 $4.68 $4.54 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: $10.26 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 $10.26 $9.07 $8.64 $8.48 Reel $7.89 View $8.22 $7.62 $7.39 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: $4.42 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 $4.42 $3.49 $3.37 $3.14 Reel $2.98 View $2.85 $2.80 $2.71 $2.58 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: $3.72 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 $3.72 $3.02 $2.90 $2.72 Reel $2.61 View $2.54 $2.42 $2.35 $2.28 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: $4.33 1,844In Stock 2,750Expected 2026/12/21	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 2026/12/21	Cut Tape $4.33 $3.43 Reel $2.92 $2.80 $2.76 View $2.66 $2.54 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 10/100BASE-TX SMD Ultra 16P 1-Port TG110-S055N2LFTR HALO Electronics 1: $2.63 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 $2.63 $2.52 $2.44 $2.37 Reel $1.77 View $2.19 $2.01 $1.76 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: $4.23 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 $4.23 $3.34 $2.50 $2.33 $2.12 Reel $1.98	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: $4.04 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	$4.04 $3.02 $2.26 $1.94 $1.91	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: $3.23 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 $3.23 $2.62 $2.01 $1.78 $1.67 Reel $1.51	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
Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 2-Port H2009NL Pulse Electronics 1: $9.52 233In Stock	Mfr. Part No. H2009NL Mouser Part No 673-H2009NL	Pulse Electronics	Audio Transformers / Signal Transformers 100Base-TX SMD PoE 350uH .65Ohms 2-Port Learn More about Pulse Electronics pulselantrans	Datasheet	233In Stock	$9.52 $8.59 $8.18 $7.87 View $6.26 $6.14	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 100 MHz	350 uH			1.5 kV	0 C	+ 70 C	Dual		15.11 mm	13.16 mm	6.12 mm	H2009	Tube
Audio Transformers / Signal Transformers 1000Base-T BGA PoE+ 350uH .65Ohms 4-Port H6400NL Pulse Electronics 1: $30.71 179In Stock	Mfr. Part No. H6400NL Mouser Part No 673-H6400NL	Pulse Electronics	Audio Transformers / Signal Transformers 1000Base-T BGA PoE+ 350uH .65Ohms 4-Port Learn More about Pulse Electronics pulse poe solutions	Datasheet	179In Stock	$30.71 $22.04 $20.61 $19.35 $17.49	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT	1 MHz to 125 MHz	350 uH			1.5 kV	0 C	+ 70 C	Quad		28.45 mm	17.27 mm	11.18 mm	Discrete LAN	Tray
Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH 1Ohm 2-Port PE-68828NL Pulse Electronics 1: $10.33 450In Stock	Mfr. Part No. PE-68828NL Mouser Part No 673-PE-68828NL	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH 1Ohm 2-Port	Datasheet	450In Stock	$10.33 $9.26 $9.25 $7.06 View $6.69 Quote	Min.: 1 Mult.: 1	LAN Transformers	Module	SMD/SMT			1 Ohms, 1 Ohms	1 Ohms, 1 Ohms	1.5 kV	- 40 C	+ 85 C	Dual		17.15 mm	11.58 mm	8.64 mm		Tube
Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH 1Ohm 2-Port TX1099NLT Pulse Electronics 1: $5.78 488In Stock	Mfr. Part No. TX1099NLT Mouser Part No 673-TX1099NL673-T	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH 1Ohm 2-Port	Datasheet	488In Stock	Cut Tape $5.78 $5.23 $5.01 $4.86 Reel $3.56 View $4.68 $4.44 $3.27 MouseReel Available	Min.: 1 Mult.: 1 : 600	ISDN Transformers	Module	SMD/SMT			1 Ohms, 1 Ohms		1.5 kV	- 40 C	+ 85 C	2 Channel		12.83 mm	7.11 mm	6.22 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers 1000B-5001 iNRCORE 1: $41.71 68In Stock	Mfr. Part No. 1000B-5001 Mouser Part No 673-1000B-5001	iNRCORE	Audio Transformers / Signal Transformers	Datasheet	68In Stock	$41.71 $37.53 $32.05 $30.85 View Quote	Min.: 1 Mult.: 1		Transformer			350 uH			1500 Vrms	- 40 C	+ 85 C	1 Channel		17.78 mm	16 mm	5.97 mm		Tube
Audio Transformers / Signal Transformers 120uH 1500V T/R=1 2% DC=600mA HX6164NL Pulse Electronics 1: $5.45 442In Stock	Mfr. Part No. HX6164NL Mouser Part No 673-HX6164NL	Pulse Electronics	Audio Transformers / Signal Transformers 120uH 1500V T/R=1 2% DC=600mA Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	442In Stock	$5.45 $4.93 $4.66 $4.51 View $4.42 $4.23 $4.11 $3.57 $3.56	Min.: 1 Mult.: 1	PoE Transformers	Module	SMD/SMT		120 uH			1.5 kVrms	- 40 C	+ 85 C	Single		15.24 mm	7.62 mm	8.64 mm		Tube
Audio Transformers / Signal Transformers 120uH 1500V T/R=1 2% DC=600mA HX6164NLT Pulse Electronics 1: $5.45 683In Stock	Mfr. Part No. HX6164NLT Mouser Part No 673-HX6164NLT	Pulse Electronics	Audio Transformers / Signal Transformers 120uH 1500V T/R=1 2% DC=600mA Learn More about Pulse Electronics pulse ethernet transformers	Datasheet	683In Stock	Cut Tape $5.45 $4.93 $4.73 $4.59 Reel $3.99 View $4.26 $3.52 $3.27 $3.24 MouseReel Available	Min.: 1 Mult.: 1 : 300	PoE Transformers	Module	SMD/SMT		120 uH			1.5 kVrms	- 40 C	+ 85 C	Single		15.24 mm	7.62 mm	8.64 mm	HX	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers THT T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Por PE-64936NL Pulse Electronics 1: $6.68 1,033In Stock	Mfr. Part No. PE-64936NL Mouser Part No 673-PE-64936NL	Pulse Electronics	Audio Transformers / Signal Transformers THT T1/CEPT/ISDN-Pri 1200uH .7Ohms 2-Por Learn More about Pulse Electronics pulsetelecom	Datasheet	1,033In Stock	$6.68 $5.18 $4.97 $4.83 View $4.65 $4.40 $4.26 $4.11 $4.09	Min.: 1 Mult.: 1	ISDN Transformers	Module	Through Hole	1 MHz to 100 MHz	1.2 mH			1.5 kV	0 C	+ 70 C	Dual		12.7 mm	8.89 mm	6.35 mm		Tube
Audio Transformers / Signal Transformers THT T1/CEPT/ISDN-Pri 1200uH 1Ohm 1-Port PE-65771NL Pulse Electronics 1: $5.54 1,129In Stock	Mfr. Part No. PE-65771NL Mouser Part No 673-PE-65771NL	Pulse Electronics	Audio Transformers / Signal Transformers THT T1/CEPT/ISDN-Pri 1200uH 1Ohm 1-Port	Datasheet	1,129In Stock	$5.54 $5.01 $4.81 $4.61 View $4.47 $4.29 $3.41 $3.33	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 SMD T1/CEPT/ISDN-Pri 1000uH 2Ohms 2-Port T1144NLT Pulse Electronics 1: $5.78 1,096In Stock	Mfr. Part No. T1144NLT Mouser Part No 673-T1144NL673-T	Pulse Electronics	Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1000uH 2Ohms 2-Port Learn More about Pulse Electronics pulsetelecom	Datasheet	1,096In Stock	Cut Tape $5.78 $5.22 $5.01 $4.86 Reel $3.76 View $4.68 $3.86 $3.54 $3.50 MouseReel Available	Min.: 1 Mult.: 1 : 600	ISDN Transformers	Module	SMD/SMT	50 kHz to 3 MHz				1.5 kV	0 C	+ 70 C	Dual		12.83 mm	9.53 mm	6.22 mm		Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers FA2924 SMT Flyback For Si341, Si3402 FA2924-ALD Coilcraft 1: $4.69 2,069In Stock	Mfr. Part No. FA2924-ALD Mouser Part No 994-FA2924-ALD	Coilcraft	Audio Transformers / Signal Transformers FA2924 SMT Flyback For Si341, Si3402 Learn More about Coilcraft power magnetics	Datasheet	2,069In Stock	Cut Tape $4.69 $3.72 Reel $3.16 $3.04 $2.98 View $2.88 $2.74 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	FA2924	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 24 V 1.25 A POE300F-24LD Coilcraft 1: $7.48 394In Stock	Mfr. Part No. POE300F-24LD Mouser Part No 994-POE300F-24LD	Coilcraft	Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 24 V 1.25 A Learn More about Coilcraft poe300f flyback transformers	Datasheet	394In Stock	Cut Tape $7.48 $6.40 $6.16 Reel $5.23 $5.04 $4.90 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 1:1 0.03-250 MHz PWB2010-1LC Coilcraft 1: $4.50 804In Stock	Mfr. Part No. PWB2010-1LC Mouser Part No 994-PWB2010-1LC	Coilcraft	Audio Transformers / Signal Transformers PWB Wideband RF 1:1 0.03-250 MHz	Datasheet	804In Stock	Cut Tape $4.50 $3.57 Reel $3.04 $2.91 $2.86 View $2.76 $2.63 MouseReel Available	Min.: 1 Mult.: 1 : 250	RF Transformers		SMD/SMT	30 kHz to 250 MHz	95 uH, 95 uH			300 V	- 40 C	+ 85 C	Dual		6.77 mm	6.48 mm	4.45 mm	PWB	Reel, Cut Tape, MouseReel