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Transformers Audio & Signal

Home » Applications & Technologies » Audio » Transformers

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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Part #

Audio Transformers / Signal Transformers MDL,SIN,1GD,1:1,SMT TR NPB

HX5120NLT
Pulse Electronics
1: $22.75
6,358In Stock

Mfr. Part No.
HX5120NLT

Mouser Part No
673-HX5120NLT

Pulse Electronics

Audio Transformers / Signal Transformers MDL,SIN,1GD,1:1,SMT TR NPB

Learn More

Datasheet

6,358In Stock

Cut Tape

$22.75

$19.69

$18.39

$17.88

View

Reel

$15.98

MouseReel Available

Min.: 1
Mult.: 1
Max.: 4,000

: 1,000

LAN Transformers

SMD/SMT

100 MHz

350 uH

100 Ohms

1.5 kV

- 40 C

+ 85 C

Single

16.51 mm

9.14 mm

2.08 mm

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers

T-1250SCTNL
iNRCORE
1: $99.89
39In Stock

Mfr. Part No.
T-1250SCTNL

Mouser Part No
673-T-1250SCTNL

iNRCORE

Audio Transformers / Signal Transformers

Datasheet

39In Stock

$99.89

$89.79

$86.40

$81.82

View

Min.: 1
Mult.: 1

High Speed

SMD/SMT

3.75 uH

- 55 C

+ 125 C

2 Channel

12.7 mm

11.05 mm

4.57 mm

Tube

Audio Transformers / Signal Transformers DA2032 Cap Chrgr For Linear LT3750

DA2032-ALD
Coilcraft
1: $9.29
5,724In Stock

Mfr. Part No.
DA2032-ALD

Mouser Part No
994-DA2032-ALD

Coilcraft

Audio Transformers / Signal Transformers DA2032 Cap Chrgr For Linear LT3750

Learn More

Datasheet

5,724In Stock

Cut Tape

$9.29

$7.02

$6.68

$6.26

Reel

$5.71

View

MouseReel Available

Min.: 1
Mult.: 1

: 200

Flyback Transformers

Flyback

SMD/SMT

100 kHz

10 uH

1.5 kV

- 40 C

+ 125 C

Single

17.2 mm

14.98 mm

8.89 mm

DA2032

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers ETH1 60W 4pairs PoE+ Magnetic Module

ETH1-460LD
Coilcraft
1: $17.68
1,789In Stock
1,500Expected 4/9/2026

Mfr. Part No.
ETH1-460LD

Mouser Part No
994-ETH1-460LD

Coilcraft

Audio Transformers / Signal Transformers ETH1 60W 4pairs PoE+ Magnetic Module

Learn More

Datasheet

1,789In Stock

1,500Expected 4/9/2026

Cut Tape

$17.68

$15.93

$15.76

Reel

$13.74

$13.30

MouseReel Available

Min.: 1
Mult.: 1

: 250

LAN Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

- 40 C

+ 85 C

Dual

18.6 mm

16.5 mm

10.16 mm

ETH1

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers GA3459 for LT3751 500V 20A

GA3459-BL
Coilcraft
1: $13.46
2,423In Stock

Mfr. Part No.
GA3459-BL

Mouser Part No
994-GA3459-BL

Coilcraft

Audio Transformers / Signal Transformers GA3459 for LT3751 500V 20A

Learn More

Datasheet

2,423In Stock

$13.46

$11.41

$10.93

$10.35

View

Min.: 1
Mult.: 1

Flyback Transformers

Flyback

SMD/SMT

50 kHz

5 uH

1.5 kV

- 40 C

+ 125 C

Single

26.75 mm

26 mm

14 mm

GA3459

Tray

Audio Transformers / Signal Transformers POE13P Flyback PoE 13uH 12 V 1.08 A

POE13P-12LD
Coilcraft
1: $4.94
7,869In Stock
8,925Expected 9/11/2026

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

Datasheet

7,869In Stock

8,925Expected 9/11/2026

Cut Tape

$4.94

$3.73

$3.55

$3.32

Reel

$3.03

View

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 24 V 1.25 A

POE300F-24LD
Coilcraft
1: $10.16
429In 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

Datasheet

429In Stock

Cut Tape

$10.16

$7.89

$7.56

$7.33

Reel

$6.81

View

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 1:1 0.250-750 MHz

WBC1-1TLC
Coilcraft
1: $7.93
4,695In Stock

Mfr. Part No.
WBC1-1TLC

Mouser Part No
994-WBC1-1TLC

Coilcraft

Audio Transformers / Signal Transformers WBC SMT Mini Wdebnd 1:1 0.250-750 MHz

Datasheet

4,695In Stock

Cut Tape

$7.93

$6.75

$5.79

Reel

$5.79

MouseReel Available

Min.: 1
Mult.: 1

: 750

RF Transformers

SMD/SMT

250 kHz to 750 MHz

9.5 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 WBC SMT Mini Wdebnd 1:16 0.600-300 MHz

WBC16-1TLC
Coilcraft
1: $8.60
9,010In Stock

Mfr. Part No.
WBC16-1TLC

Mouser Part No
994-WBC16-1TLC

Coilcraft

Audio Transformers / Signal Transformers WBC SMT Mini Wdebnd 1:16 0.600-300 MHz

Datasheet

9,010In Stock

Cut Tape

$8.60

$6.49

$6.17

$5.79

View

Reel

$4.96

MouseReel Available

Min.: 1
Mult.: 1

: 750

RF Transformers

SMD/SMT

- 40 C

+ 85 C

4.45 mm

4.19 mm

3.05 mm

WBC

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers High Frequency Resonant Transformers ETD34 150W 600uH 12V 260mOhm

SLLC-ETD34-12
Bel Signal Transformer
1: $7.68
610In Stock

Mfr. Part No.
SLLC-ETD34-12

Mouser Part No
530-SLLC-ETD34-12

Bel Signal Transformer

Audio Transformers / Signal Transformers High Frequency Resonant Transformers ETD34 150W 600uH 12V 260mOhm

Learn More

Datasheet

610In Stock

$7.68

$6.95

$6.66

$6.41

View

Min.: 1
Mult.: 1

Transformers

High Frequency Resonant Transformer

Through Hole

70 kHz to 120 kHz

600 uH

4 kV

- 40 C

+ 125 C

36 mm

26 mm

SLLC

Tray

Audio Transformers / Signal Transformers High Frequency Resonant Transformers ETD39 200W 500uH 12V 145mOhm

SLLC-ETD39-12
Bel Signal Transformer
1: $12.46
624In Stock

Mfr. Part No.
SLLC-ETD39-12

Mouser Part No
530-SLLC-ETD39-12

Bel Signal Transformer

Audio Transformers / Signal Transformers High Frequency Resonant Transformers ETD39 200W 500uH 12V 145mOhm

Learn More

Datasheet

624In Stock

$12.46

$10.87

$10.43

$9.98

View

Min.: 1
Mult.: 1

Transformers

High Frequency Resonant Transformer

Through Hole

70 kHz to 120 kHz

500 uH

4 kV

- 40 C

+ 125 C

44 mm

43 mm

30 mm

SLLC

Tray

Audio Transformers / Signal Transformers High Frequency Resonant Transformers ETD44 250W 476uH 12V 128mOhm

SLLC-ETD44-12
Bel Signal Transformer
1: $14.52
613In Stock

Mfr. Part No.
SLLC-ETD44-12

Mouser Part No
530-SLLC-ETD44-12

Bel Signal Transformer

Audio Transformers / Signal Transformers High Frequency Resonant Transformers ETD44 250W 476uH 12V 128mOhm

Learn More

Datasheet

613In Stock

$14.52

$13.10

$12.57

$12.25

View

Min.: 1
Mult.: 1

Transformers

High Frequency Resonant Transformer

Through Hole

70 kHz to 120 kHz

476 uH

4 kV

- 40 C

+ 125 C

48 mm

46 mm

27.5 mm

SLLC

Tray

Audio Transformers / Signal Transformers High Frequency Universal Line SMD Transformers 16/8/5 12W 1310uH 24/5V 3000mOhm

SUOST-12-2405
Bel Signal Transformer
1: $7.79
600In Stock

Mfr. Part No.
SUOST-12-2405

Mouser Part No
530-SUOST-12-2405

Bel Signal Transformer

Audio Transformers / Signal Transformers High Frequency Universal Line SMD Transformers 16/8/5 12W 1310uH 24/5V 3000mOhm

Learn More

Datasheet

600In Stock

$7.79

$6.57

$6.32

$6.15

View

Min.: 1
Mult.: 1

Transformers

High Frequency Universal Line SMD Transformer

SMD/SMT

60 kHz to 150 kHz

1.31 mH

3 Ohms

4 kVAC

- 40 C

+ 125 C

1 Channel

20.6 mm

16.6 mm

13.5 mm

SUOST

Tray

Audio Transformers / Signal Transformers High Frequency Universal Line SMD Transformers 16/8/5 13W 1250uH 12/12V 2920mOhm

SUOST-13-1212
Bel Signal Transformer
1: $7.78
597In Stock

Mfr. Part No.
SUOST-13-1212

Mouser Part No
530-SUOST-13-1212

Bel Signal Transformer

Audio Transformers / Signal Transformers High Frequency Universal Line SMD Transformers 16/8/5 13W 1250uH 12/12V 2920mOhm

Learn More

Datasheet

597In Stock

$7.78

$6.56

$6.31

$6.13

View

Min.: 1
Mult.: 1

Transformers

High Frequency Universal Line SMD Transformer

SMD/SMT

60 kHz to 150 kHz

1.25 mH

4 kVAC

- 40 C

+ 125 C

1 Channel

20.6 mm

16.6 mm

13.5 mm

SUOST

Tray

Audio Transformers / Signal Transformers High Frequency Universal Line SMD Transformers 16/8/5 15W 1500uH 12/5V 6500mOhm

SUOST-15-1205
Bel Signal Transformer
1: $7.78
594In Stock

Mfr. Part No.
SUOST-15-1205

Mouser Part No
530-SUOST-15-1205

Bel Signal Transformer

Audio Transformers / Signal Transformers High Frequency Universal Line SMD Transformers 16/8/5 15W 1500uH 12/5V 6500mOhm

Learn More

Datasheet

594In Stock

$7.78

$6.57

$6.32

$6.15

View

Min.: 1
Mult.: 1

Transformers

High Frequency Universal Line SMD Transformer

SMD/SMT

60 kHz to 150 kHz

1.5 mH

4 kVAC

- 40 C

+ 125 C

1 Channel

20.6 mm

16.6 mm

13.5 mm

SUOST

Tray

Audio Transformers / Signal Transformers High Frequency Universal Line SMD Transformers 16/8/5 16W 1500uH 12/12V 4200mOhm

SUOST-16-1212
Bel Signal Transformer
1: $7.79
591In Stock

Mfr. Part No.
SUOST-16-1212

Mouser Part No
530-SUOST-16-1212

Bel Signal Transformer

Audio Transformers / Signal Transformers High Frequency Universal Line SMD Transformers 16/8/5 16W 1500uH 12/12V 4200mOhm

Learn More

Datasheet

591In Stock

$7.79

$6.56

$6.31

$6.13

View

Min.: 1
Mult.: 1

Transformers

High Frequency Universal Line SMD Transformer

SMD/SMT

60 kHz to 150 kHz

1.5 mH

4 kVAC

- 40 C

+ 125 C

1 Channel

20.6 mm

16.6 mm

13.5 mm

SUOST

Tray

Audio Transformers / Signal Transformers LAN Transformer/CMC,12PIN,100Base,SGL,4.0kVAC, -40 to 105C

SM91078L-E
Bourns
1: $15.26
1,145In Stock

Mfr. Part No.
SM91078L-E

Mouser Part No
652-SM91078L-E

Bourns

Audio Transformers / Signal Transformers LAN Transformer/CMC,12PIN,100Base,SGL,4.0kVAC, -40 to 105C

Learn More

Datasheet

1,145In Stock

Cut Tape

$15.26

$12.68

$12.19

$11.68

View

Reel

$7.75

MouseReel Available

Min.: 1
Mult.: 1

: 400

LAN Transformers

LAN

SMD/SMT

350 uH

4 kV

- 40 C

+ 105 C

1 Channel

30.6 mm

18.6 mm

9.6 mm

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers LAN Transformer/CMC,24PIN,1000Base-T,4.68kVDC, -40 to 105C

SM91604L-E
Bourns
1: $26.03
341In Stock

Mfr. Part No.
SM91604L-E

Mouser Part No
652-SM91604L-E

Bourns

Audio Transformers / Signal Transformers LAN Transformer/CMC,24PIN,1000Base-T,4.68kVDC, -40 to 105C

Learn More

Datasheet

341In Stock

Cut Tape

$26.03

$23.43

$22.47

$21.76

View

Reel

$19.83

MouseReel Available

Min.: 1
Mult.: 1

: 400

LAN Transformers

LAN Transformer

SMD/SMT

350 uH

- 40 C

+ 105 C

1 Channel

33 mm x 17 mm x 10.5 mm

33 mm

17 mm

10.5 mm

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-LAN 2.5G / 5GB Base-T 1Port ETR

749080010
Wurth Elektronik
1: $16.76
590In Stock

Mfr. Part No.
749080010

Mouser Part No
710-749080010

Wurth Elektronik

Audio Transformers / Signal Transformers WE-LAN 2.5G / 5GB Base-T 1Port ETR

Learn More

Datasheet

590In Stock

Cut Tape

$16.76

$15.38

$13.87

$12.59

Reel

$12.59

MouseReel Available

Min.: 1
Mult.: 1

: 400

LAN Transformers

LAN

SMD/SMT

200 uH

1.5 kV

- 40 C

+ 85 C

13.97 mm

12 mm

WE-LAN

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-PLC PLC 1 channel 4500Vrms isolation -40/ +125C

74941503
Wurth Elektronik
1: $4.92
717In Stock

Mfr. Part No.
74941503

Mouser Part No
710-74941503

Wurth Elektronik

Audio Transformers / Signal Transformers WE-PLC PLC 1 channel 4500Vrms isolation -40/ +125C

Learn More

Datasheet

717In Stock

Cut Tape

$4.92

$4.52

$4.04

$3.66

Reel

$3.29

MouseReel Available

Min.: 1
Mult.: 1

: 500

Transformers

SMT Transformer

SMD/SMT

20 uH

4.5 kVAC

- 40 C

+ 125 C

1 Channel

13.6 mm

11.26 mm

7.4 mm

WE-PLC

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-BMS BMS 2 channels 1500V -40/ +125C

74942400
Wurth Elektronik
1: $10.54
754In Stock

Mfr. Part No.
74942400

Mouser Part No
710-74942400

Wurth Elektronik

Audio Transformers / Signal Transformers WE-BMS BMS 2 channels 1500V -40/ +125C

Learn More

Datasheet

754In Stock

Cut Tape

$10.54

$9.08

$8.16

$7.40

Reel

$7.00

$6.85

MouseReel Available

Min.: 1
Mult.: 1

: 500

Transformers

SMT Transformer

SMD/SMT

450 uH

- 40 C

+ 125 C

1 Channel

24.52 mm

15.45 mm

4.85 mm

WE-BMS

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-BMS BMS 450uH 2Channel 1500V -40/ +125C

74942401
Wurth Elektronik
1: $10.54
669In Stock

Mfr. Part No.
74942401

Mouser Part No
710-74942401

Wurth Elektronik

Audio Transformers / Signal Transformers WE-BMS BMS 450uH 2Channel 1500V -40/ +125C

Learn More

Datasheet

669In Stock

Cut Tape

$10.54

$9.08

$8.00

$7.13

Reel

$7.00

$6.80

MouseReel Available

Min.: 1
Mult.: 1

: 500

Transformers

SMT Transformer

SMD/SMT

450 uH

- 40 C

+ 125 C

1 Channel

24.52 mm

15.45 mm

4.85 mm

WE-BMS

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-BMS BMS 1 channel 1500V -40 / +125C

74942402
Wurth Elektronik
1: $8.46
1,121In Stock
3,000On Order

Mfr. Part No.
74942402

Mouser Part No
710-74942402

Wurth Elektronik

Audio Transformers / Signal Transformers WE-BMS BMS 1 channel 1500V -40 / +125C

Learn More

Datasheet

1,121In Stock

3,000On Order

Cut Tape

$8.46

$7.48

$6.69

$5.97

Reel

$5.25

MouseReel Available

Min.: 1
Mult.: 1

: 300

Transformers

SMT Transformer

SMD/SMT

450 uH

- 40 C

+ 125 C

1 Channel

24 mm

12.5 mm

7.3 mm

WE-BMS

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers LAN Transformer, 16 pin, 3Wire + T

TM41654ANL
Taoglas
1: $4.05
1,802In Stock

Mfr. Part No.
TM41654ANL

Mouser Part No
960-TM41654ANL

Taoglas

Audio Transformers / Signal Transformers LAN Transformer, 16 pin, 3Wire + T

Learn More

Datasheet

1,802In Stock

Cut Tape

$4.05

$3.67

$3.41

$3.32

Reel

$3.10

View

MouseReel Available

Min.: 1
Mult.: 1

: 650

LAN Transformers

SMD/SMT

120 uH, 350 uH

- 40 C

+ 85 C

SMT-24

12.7 mm

9.3 mm

5.65 mm

Exos

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers LAN Transformer, Dual 1G Base-T, 48 pin, SMT, 3Wire + T, PoE+(600mA), Industrial grade

TM6080ANL
Taoglas
1: $6.20
3,386In Stock

Mfr. Part No.
TM6080ANL

Mouser Part No
960-TM6080ANL

Taoglas

Audio Transformers / Signal Transformers LAN Transformer, Dual 1G Base-T, 48 pin, SMT, 3Wire + T, PoE+(600mA), Industrial grade

Learn More

Datasheet

3,386In Stock

Cut Tape

$6.20

$5.60

$5.21

$5.06

Reel

$4.88

View

MouseReel Available

Min.: 1
Mult.: 1

: 350

LAN Transformers

LAN

SMD/SMT

120 uH, 350 uH

- 40 C

+ 85 C

SMT-48

28 mm

15.4 mm

7 mm

Exos

Reel, Cut Tape, MouseReel

Transformers Audio & Signal

Transformers for Audio Applications

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0.5 in x 0.38 in x 0.236 in
0.63 in x 0.566 in x 0.598 in
0.69 in x 0.48 in x 0.225 in
0.82 in x 0.68 in x 0.69 in
0.86 in x 0.71 in x 0.75 in
0402 (1005 metric)
0805 (2012)
1.33 in x 1.64 in x 0.85 in
1.35 in x 0.69 in x 0.69 in
1.63 in x 0.88 in x 0.81 in
10.4 mm x 7.87 mm
10.4 mm x 7.87 mm x 11.8 mm
10.6 mm x 9.08 mm x 10 mm
12.7 mm x 6.99 mm x 5.08 mm
12.7 mm x 8.89 mm x 6.35 mm
12.7 mm x 9.09 mm x 5.99 mm
13.21 mm x 7.87 mm x 5.72 mm
13.3 mm x 7.4 mm
13.64 mm x 14.99 mm x 6.22 mm
13.97 mm x 12.57 mm x 4.57 mm

0.5 mm
1 mm
1.25 mm
1.6 mm
2 mm
2.54 mm
2.55 mm
3.048 mm
3.2 mm
3.45 mm
3.51 mm
3.74 mm
3.81 mm
3.97 mm
4 mm
4.02 mm
4.06 mm
4.064 mm
4.19 mm
4.21 mm

0.51 mm
0.79 mm
1.16 mm
1.2 mm
1.24 mm
1.27 mm
1.42 mm
1.524 mm
1.6 mm
1.69 mm
1.75 mm
1.78 mm
2 mm
2.5 mm
2.54 mm
2.6 mm
2.69 mm
2.79 mm
2.9 mm
3 mm

0.38 mm
0.414 mm
0.53 mm
0.61 mm
0.84 mm
0.939 mm
1.1 mm
1.2 mm
1.73 mm
1.88 mm
1.98 mm
2 mm
2.08 mm
2.083 mm
0.082 in
2.1 mm
2.2 mm
2.24 mm
2.3 mm
2.31 mm

101
102
104
106
107
108
109
117
119
124 Series
125 Series
126 Series
140
141
143
144
145
146
148
149