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Audio Transformers / Signal Transformers

Audio Transformers & Signal Transformers are available at Mouser Electronics 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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Part #

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

WB1-6TL
Coilcraft
1: $5.10
108In Stock

Mfr. Part No.
WB1-6TL

Mouser Part No
994-WB1-6TL

Coilcraft

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

Datasheet

108In Stock

$5.10

$3.85

$3.67

$3.43

View

Min.: 1
Mult.: 1

RF Transformers

SMD/SMT

50 kHz to 200 MHz

70 uH, 70 uH

500 V

- 40 C

+ 85 C

Single

8.26 mm

7.24 mm

5.72 mm

Tube

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

WB13-1TL
Coilcraft
1: $5.10
56In Stock

Mfr. Part No.
WB13-1TL

Mouser Part No
994-WB13-1TL

Coilcraft

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

Datasheet

56In Stock

$5.10

$3.85

$3.67

$3.43

View

Min.: 1
Mult.: 1

RF Transformers

Tube

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

WB16-1L
Coilcraft
1: $5.49
118In Stock

Mfr. Part No.
WB16-1L

Mouser Part No
994-WB16-1L

Coilcraft

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

Datasheet

118In Stock

$5.49

$4.14

$3.94

$3.70

View

Min.: 1
Mult.: 1

RF Transformers

Through Hole

50 kHz to 100 MHz

56 uH, 896 uH

500 V

- 40 C

+ 85 C

Single

8.26 mm

7.24 mm

5.72 mm

Tube

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

WB2-1TL
Coilcraft
1: $5.18
25In Stock

Mfr. Part No.
WB2-1TL

Mouser Part No
994-WB2-1TL

Coilcraft

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

Datasheet

25In Stock

$5.18

$3.91

$3.73

$3.49

View

Min.: 1
Mult.: 1

RF Transformers

Tube

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

WB36-1L
Coilcraft
1: $6.04
58In Stock

Mfr. Part No.
WB36-1L

Mouser Part No
994-WB36-1L

Coilcraft

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

Datasheet

58In Stock

$6.04

$4.56

$4.34

$4.07

View

Min.: 1
Mult.: 1

RF Transformers

Through Hole

100 kHz to 45 MHz

25 uH, 900 uH

500 V

- 40 C

+ 85 C

Single

8.26 mm

7.24 mm

5.72 mm

Tube

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

WB4-6L
Coilcraft
1: $5.10
98In Stock

Mfr. Part No.
WB4-6L

Mouser Part No
994-WB4-6L

Coilcraft

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

Datasheet

98In Stock

$5.10

$3.85

$3.67

$3.44

View

Min.: 1
Mult.: 1

RF Transformers

Tube

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

WB4-6TL
Coilcraft
1: $4.06
46In Stock

Mfr. Part No.
WB4-6TL

Mouser Part No
994-WB4-6TL

Coilcraft

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

Datasheet

46In Stock

$4.06

$3.06

$2.92

$2.73

View

Min.: 1
Mult.: 1

RF Transformers

Through Hole

50 kHz to 200 MHz

43 uH, 172 uH

500 V

- 40 C

+ 85 C

Dual

8.26 mm

7.24 mm

5.72 mm

Tube

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

WBT16-1L
Coilcraft
1: $4.00
79In Stock

Mfr. Part No.
WBT16-1L

Mouser Part No
994-WBT16-1L

Coilcraft

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

Datasheet

79In Stock

$4.00

$3.02

$2.88

$2.70

View

Min.: 1
Mult.: 1

RF Transformers

Pin Terminal Transformers

Through Hole

100 kHz to 100 MHz

500 V

- 40 C

+ 85 C

8.26 mm x 7.24 mm x 5.72 mm

8.26 mm

7.24 mm

5.72 mm

Tube

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

WBT4-1L
Coilcraft
1: $4.05
59In Stock

Mfr. Part No.
WBT4-1L

Mouser Part No
994-WBT4-1L

Coilcraft

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

Datasheet

59In Stock

$4.05

$3.05

$2.91

$2.72

View

Min.: 1
Mult.: 1

RF Transformers

Pin Terminal Transformers

Through Hole

40 kHz to 350 MHz

- 40 C

+ 85 C

8.26 mm

7.24 mm

5.72 mm

Tube

Audio Transformers / Signal Transformers E4/STM-01/STS-3/OC-3 16P SMD Single Ch

TG04-TDK2NSRL
HALO Electronics
1: $7.10
427In Stock
558Expected 08/09/2026

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

Datasheet

427In Stock

558Expected 08/09/2026

$7.10

$4.58

$3.74

$3.03

View

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 XFMR LAN 10/100/1000 BASE-T

1000B-5002FX
iNRCORE
1: $45.50
13In Stock

Mfr. Part No.
1000B-5002FX

Mouser Part No
673-1000B-5002FX

iNRCORE

Audio Transformers / Signal Transformers XFMR LAN 10/100/1000 BASE-T

Datasheet

13In Stock

$45.50

$40.93

$37.99

$37.59

View

Min.: 1
Mult.: 1

1000B

Tube

Audio Transformers / Signal Transformers

1000B-5012NLT
iNRCORE
1: $46.34
11In Stock

Mfr. Part No.
1000B-5012NLT

Mouser Part No
673-1000B-5012NLT

iNRCORE

Audio Transformers / Signal Transformers

Datasheet

11In Stock

Cut Tape

$46.34

$41.69

$39.95

$38.69

View

Reel

$34.83

Min.: 1
Mult.: 1

: 350

SMD/SMT

1500 Vrms

- 40 C

+ 85 C

1 Channel

15.49 mm

13.46 mm

6.48 mm

Reel, Cut Tape

Audio Transformers / Signal Transformers HA3803 Flyback For TI TPS23753

HA3803-BLD
Coilcraft
1: $7.19
50In Stock
200Expected 13/10/2026

Mfr. Part No.
HA3803-BLD

Mouser Part No
994-HA3803-BLD

Coilcraft

Audio Transformers / Signal Transformers HA3803 Flyback For TI TPS23753

Learn More

Datasheet

50In Stock

200Expected 13/10/2026

Cut Tape

$7.19

$5.58

$5.36

$5.19

Reel

$4.82

View

MouseReel Available

Min.: 1
Mult.: 1

: 200

Flyback Transformers

Flyback

SMD/SMT

100 kHz

166.5 uH

1.5 kV

- 40 C

+ 125 C

Single

17.2 mm

14.98 mm

8.51 mm

HA3803

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers MA5157 Flyback For NXP SSL2103

MA5157-AL
Coilcraft
1: $6.61
97In Stock

Mfr. Part No.
MA5157-AL

Mouser Part No
994-MA5157-AL

Coilcraft

Audio Transformers / Signal Transformers MA5157 Flyback For NXP SSL2103

Learn More

Datasheet

97In Stock

$6.61

$5.13

$4.92

$4.77

View

Min.: 1
Mult.: 1

Flyback Transformers

Flyback

Through Hole

100 kHz

750 uH

2 kV

- 40 C

+ 85 C

Single

20.7 mm

20.5 mm

12.5 mm

MA5157

Tray

Audio Transformers / Signal Transformers Flyback PoE 23W 54uH 3.3V 3.2A

POE23PR-33ED
Coilcraft
1: $6.38
122In Stock

Mfr. Part No.
POE23PR-33ED

Mouser Part No
994-POE23PR-33ED

Coilcraft

Audio Transformers / Signal Transformers Flyback PoE 23W 54uH 3.3V 3.2A

Learn More

Datasheet

122In Stock

Cut Tape

$6.38

$4.81

$4.58

$4.29

Reel

$3.93

View

MouseReel Available

Min.: 1
Mult.: 1

: 150

PoE Transformers

Flyback

SMD/SMT

200 kHz

54 uH

- 40 C

+ 125 C

Single

14.5 mm

13 mm

14 mm

POE21PR

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 19.5 V 1.5 A

POE300F-19LD
Coilcraft
1: $7.47
144In Stock

Mfr. Part No.
POE300F-19LD

Mouser Part No
994-POE300F-19LD

Coilcraft

Audio Transformers / Signal Transformers POE300F Flyback PoE+ 30uH 19.5 V 1.5 A

Learn More

Datasheet

144In Stock

Cut Tape

$7.47

$5.80

$5.56

$5.39

Reel

$5.01

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 POE70P Flyback 7uH 3.3 V 2.12 A

POE70P-33LD
Coilcraft
1: $4.41
76In Stock

Mfr. Part No.
POE70P-33LD

Mouser Part No
994-POE70P-33LD

Coilcraft

Audio Transformers / Signal Transformers POE70P Flyback 7uH 3.3 V 2.12 A

Learn More

Datasheet

76In Stock

Cut Tape

$4.41

$3.33

$3.17

$2.97

Reel

$2.71

View

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 PWB Wideband RF 1:1 0.03-250 MHz

PWB3010-1LC
Coilcraft
1: $4.99
117In Stock
250Expected 12/10/2026

Mfr. Part No.
PWB3010-1LC

Mouser Part No
994-PWB3010-1LC

Coilcraft

Audio Transformers / Signal Transformers PWB Wideband RF 1:1 0.03-250 MHz

Datasheet

117In Stock

250Expected 12/10/2026

Cut Tape

$4.99

$3.77

$3.59

$3.36

Reel

$3.07

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

RF Transformers

SMD/SMT

30 kHz to 250 MHz

- 40 C

+ 85 C

Single

6.77 mm

6.48 mm

4.45 mm

PWB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers PWB Wideband RF 1:1.5 0.07-225 MHz

PWB3015LC
Coilcraft
1: $3.22
225In Stock

Mfr. Part No.
PWB3015LC

Mouser Part No
994-PWB3015LC

Coilcraft

Audio Transformers / Signal Transformers PWB Wideband RF 1:1.5 0.07-225 MHz

Datasheet

225In Stock

Cut Tape

$3.22

$2.43

$2.34

Reel

$1.99

$1.93

$1.87

MouseReel Available

Min.: 1
Mult.: 1

: 250

RF Transformers

PWB

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec

SWB2010-SMLD
Coilcraft
1: $4.10
1,500Expected 23/11/2026

Mfr. Part No.
SWB2010-SMLD

Mouser Part No
994-SWB2010-SMLD

Coilcraft

Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec

Learn More

Datasheet

1,500Expected 23/11/2026

Cut Tape

$4.10

$3.10

$2.95

$2.76

Reel

$2.45

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

5 kHz to 100 MHz

780 uH

500 V

- 40 C

+ 85 C

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 WB SMT RF Trnsfmr Wideband 0.25W

WB3-1TSLD
Coilcraft
1: $4.96
3In Stock

Mfr. Part No.
WB3-1TSLD

Mouser Part No
994-WB3-1TSLD

Coilcraft

Audio Transformers / Signal Transformers WB SMT RF Trnsfmr Wideband 0.25W

Datasheet

3In Stock

Cut Tape

$4.96

$3.74

$3.57

$3.34

Reel

$2.96

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Z9007 For NCP1200 67uH 16 V 4.2 A

Z9007-BL
Coilcraft
1: $16.17
11In Stock

Mfr. Part No.
Z9007-BL

Mouser Part No
994-Z9007-BL

Coilcraft

Audio Transformers / Signal Transformers Z9007 For NCP1200 67uH 16 V 4.2 A

Learn More

Datasheet

11In Stock

$16.17

$13.75

$13.31

$12.90

View

Min.: 1
Mult.: 1

Flyback

Through Hole

16 uH

1.5 kV

- 40 C

+ 85 C

36.8 mm x 36.8 mm x 29.7 mm

36.8 mm

29.7 mm

Z9007

Tray

Audio Transformers / Signal Transformers

T-1485SCTNL
iNRCORE
1: $76.20
16In Stock

Mfr. Part No.
T-1485SCTNL

Mouser Part No
673-T-1485SCTNL

iNRCORE

Audio Transformers / Signal Transformers

Datasheet

16In Stock

$76.20

$68.48

$64.12

$63.11

View

Min.: 1
Mult.: 1

3.75 uH

1500 Vrms

+ 125 C

2 Channel

12.7 mm

11.05 mm

4.57 mm

Tube

Audio Transformers / Signal Transformers C1174 for TPS23750 10uH 5.0 V 2 A

C1174-ALD
Coilcraft
1: $6.66
109In Stock

Mfr. Part No.
C1174-ALD

Mouser Part No
994-C1174-ALD

Coilcraft

Audio Transformers / Signal Transformers C1174 for TPS23750 10uH 5.0 V 2 A

Learn More

Datasheet

109In Stock

Cut Tape

$6.66

$5.03

$4.79

$4.49

Reel

$4.11

View

MouseReel Available

Min.: 1
Mult.: 1

: 200

Flyback Transformers

Flyback

SMD/SMT

500 kHz

150 uH

1.5 kV

- 40 C

+ 125 C

Single

17.2 mm

14.98 mm

8.51 mm

C1174

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers JA4635 Flyback 110 Vac 10.5A

JA4635-AL
Coilcraft
1: $18.37
2In Stock

Mfr. Part No.
JA4635-AL

Mouser Part No
994-JA4635-AL

Coilcraft

Audio Transformers / Signal Transformers JA4635 Flyback 110 Vac 10.5A

Learn More

Datasheet

2In Stock

$18.37

$16.54

$15.86

$15.36

View

Min.: 1
Mult.: 1

Flyback Transformers

Flyback

Through Hole

150 kHz

28 uH

3 kV

- 40 C

+ 85 C

45.72 mm

47.72 mm

30.48 mm

JA4635

Tray

Audio Transformers / Signal Transformers

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ABRACON
Amphenol
Bel
Bourns
Coilcraft
Eaton
EMO Systems
HALO Electronics
Hammond
HARTING
iNRCORE
MACOM
Mini-Circuits
Murata
Neutrik
Pro-Wave Electronics
Pulse
Qorvo
Sumida
Tamura
Taoglas
TDK
TE Connectivity
Triad Magnetics
TTM Technologies
Vacuumschmelze
Visaton
Vishay
Wurth Elektronik
Xicon

Accessories
ADSL Transformers
Audio Transformer
Audio Transformers
Baluns
BMS Transformers
Chip LAN Transformers
Design Kits
DSL Transformers
Ethernet Isolation Transformers
Ethernet Transformers
Flyback Transformers
Forward Transformers
Gate Drive Transformers
High Voltager LAN Transformers
Impedance Matching Transformers
Interface Transformers
ISDN Transformers
Isolation Module
Isolation Transformers

10 / 100 Base-TX
1000Base-T, 10GBase-T
1G Base-T PoE Transformer
Adaptors
ADSL
Audio
Audio Transformer
Automotive
Balun
Balun Adapter
Ceramic Balun
Copperhead High Speed
Core and Wire Transformer
Data/Voice Coupling
Dual Channel
Ethernet Transformers
Flyback
High Frequency Resonant Transformer
High Frequency Universal Line SMD Transformer
High Speed

10 Hz to 30 kHz
20 Hz to 20 kHz
30 Hz to 15 kHz
30 Hz to 22 kHz
30 Hz to 30 kHz
50 Hz to 10 kHz
50 Hz to 12 kHz
50 Hz to 15 kHz
50 Hz to 19 kHz
50 Hz to 60 Hz
70 Hz to 11 kHz
70 Hz to 15 kHz
100 Hz to 100 MHz
100 Hz to 15 kHz
100 Hz to 9 kHz
150 Hz to 15 kHz
200 Hz
200 Hz to 15 kHz
200 Hz to 3.5 kHz
200 Hz to 4 kHz

60 nH
100 nH
200 nH
300 nH
330 nH
400 nH
500 nH
600 nH
700 nH
800 nH
900 nH
1 uH, 342 uH
1.2 uH
1.25 uH
2.5 uH
2.925 uH, 5.85 uH
3.75 uH
4 uH
5 uH
6 uH, 17 uH

100 mOhms
200 mOhms
500 mOhms
650 mOhms
700 mOhms
700 mOhms, 700 mOhms
800 mOhms
800 mOhms, 800 mOhms
900 mOhms
1 Ohms
1 Ohms, 1 Ohms
1 Ohms, 2 Ohms
1.7 Ohms, 1.7 Ohms
2.4 Ohms
3 Ohms
3.2 Ohms
7.5 Ohms/30 Ohms
8 Ohms
12 Ohms, 48 Ohms
20 Ohms

65 mOhms
500 mOhms
700 mOhms
1 Ohms
1 Ohms, 1 Ohms
1 Ohms, 2 Ohms
1.1 Ohms
1.2 Ohms, 1 Ohms
1.5 Ohms to 15 Ohms
2 Ohms
2 Ohms, 1.7 Ohms
2 Ohms, 4 Ohms, 8 Ohms
2.4 Ohms
2.5 Ohms
3.2 Ohms
4 Ohms
4 Ohms, 16 Ohms
4 Ohms, 8 Ohms
4 Ohms, 8 Ohms, 16 Ohms
4.2 Ohms

100 mV
50 V
100 V
100 VDC
100 Vrms
300 V
500 V
500 Vrms
700 V
1 kV
1.5 kV
1.5 kVAC
1.5 kVDC
1.5 kVrms
1500 Vrms
1.501 kVAC
1.75 kVDC
1.8 kVAC, 2.5 kVDC
1.875 kV
1.875 kVAC

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