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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 1:2 CORE & WIRE Transformer, 5 - 120 MHz, 50?

T2-1-2W-KK81+
Mini-Circuits
1: $10.286
17In Stock
100Expected 10/19/2026
New At Mouser

Mfr. Part #
T2-1-2W-KK81+

Mouser Part #
139-T2-1-2W-KK81

New At Mouser

Mini-Circuits

Audio Transformers / Signal Transformers 1:2 CORE & WIRE Transformer, 5 - 120 MHz, 50?

Datasheet

17In Stock

100Expected 10/19/2026

$10.286

Min.: 1
Mult.: 1

RF Transformers

Surface Mount RF Transformer

SMD/SMT

5 MHz to 120 MHz

- 20 C

+ 85 C

1 Channel

Cut Tape

Audio Transformers / Signal Transformers 1:4 Core & Wire Transformer, 0.02 - 250 MHz, 50ohm

T4-6T-X65+
Mini-Circuits
1: $10.685
5In Stock

Mfr. Part #
T4-6T-X65+

Mouser Part #
139-T4-6T-X65

Mini-Circuits

Audio Transformers / Signal Transformers 1:4 Core & Wire Transformer, 0.02 - 250 MHz, 50ohm

Datasheet

5In Stock

$10.685

Min.: 1
Mult.: 1

RF Transformers

RF Wire Transformer

Through Hole

20 kHz to 250 MHz

- 20 C

+ 85 C

7.62 mm

5.84 mm

Tube

Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS

TC1.33-1T-75+
Mini-Circuits
1: $3.870
87In Stock

Mfr. Part #
TC1.33-1T-75+

Mouser Part #
139-TC1.33-1T-75

Mini-Circuits

Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS

Learn More

Datasheet

87In Stock

Cut Tape

$3.870

$2.661

$2.156

Reel

$2.156

MouseReel Available

Min.: 1
Mult.: 1

: 500

TC1.33

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS

TC1.33-282X+
Mini-Circuits
1: $5.237
234In Stock

Mfr. Part #
TC1.33-282X+

Mouser Part #
139-TC1.33-282X

Mini-Circuits

Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS

Learn More

Datasheet

234In Stock

Cut Tape

$5.237

$3.870

$3.481

Reel

$3.481

$3.155

MouseReel Available

Min.: 1
Mult.: 1

: 500

TC1.33

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers TC XFMR / SURF MT / RoHS

TC2-72T-5+
Mini-Circuits
1: $3.870
185In Stock

Mfr. Part #
TC2-72T-5+

Mouser Part #
139-TC2-72T-5

Mini-Circuits

Audio Transformers / Signal Transformers TC XFMR / SURF MT / RoHS

Datasheet

185In Stock

Cut Tape

$3.870

$2.661

$2.145

$1.956

Reel

$1.956

MouseReel Available

Min.: 1
Mult.: 1

: 500

TC2

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers RF XFMR / SURF MOUNT / RoHS

TRS1.33-1T-75+
Mini-Circuits
1: $3.429
265In Stock

Mfr. Part #
TRS1.33-1T-75+

Mouser Part #
139-TRS1.33-1T-75

Mini-Circuits

Audio Transformers / Signal Transformers RF XFMR / SURF MOUNT / RoHS

Learn More

Datasheet

265In Stock

Cut Tape

$3.429

Reel

$3.429

MouseReel Available

Min.: 1
Mult.: 1

: 100

TRS1.33

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 0.3uH 12V 1:1 DCR=0.6Ohms

TG01-7856NSLF
HALO Electronics
1: $15.039
244In Stock

Mfr. Part #
TG01-7856NSLF

Mouser Part #
493-TG01-7856NSLF

HALO Electronics

Audio Transformers / Signal Transformers 0.3uH 12V 1:1 DCR=0.6Ohms

Datasheet

244In Stock

$15.039

$10.738

$9.024

$7.520

View

Min.: 1
Mult.: 1

Tube

Audio Transformers / Signal Transformers T1/E1 ISO MOD SMD GullWing 20P Quad Ch

TG05-1205NM5RL
HALO Electronics
1: $8.729
276In Stock

Mfr. Part #
TG05-1205NM5RL

Mouser Part #
493-TG05-1205NM5RL

HALO Electronics

Audio Transformers / Signal Transformers T1/E1 ISO MOD SMD GullWing 20P Quad Ch

Learn More

Datasheet

276In Stock

$8.729

$4.133

$3.597

$3.565

View

Min.: 1
Mult.: 1

Isolation Transformers

Module

SMD/SMT

1.2 mH

1.5 kV

0 C

+ 70 C

Dual, Quad

SMD-20

15.62 mm

7.11 mm

6.35 mm

SMD-T1

Tube

Audio Transformers / Signal Transformers 10/100BASETX SMD 16P RP-Ultra PoE+ 1Port

TG110-HPE7N5RL
HALO Electronics
1: $8.992
336In Stock

Mfr. Part #
TG110-HPE7N5RL

Mouser Part #
493-TG110-HPE7N5RL

HALO Electronics

Audio Transformers / Signal Transformers 10/100BASETX SMD 16P RP-Ultra PoE+ 1Port

Learn More

Datasheet

336In Stock

$8.992

$6.415

$5.395

$4.491

View

Min.: 1
Mult.: 1

LAN Transformers

Module

SMD/SMT

1 MHz to 80 MHz

350 uH

1.5 kV

- 40 C

+ 85 C

Single

SMD-16

12.7 mm

7.11 mm

6.35 mm

TG110

Tube

Audio Transformers / Signal Transformers 10/100BASETX SMD 16P RP-Ultra PoE 1Port

TG110-RPE5N5RLTR
HALO Electronics
1: $8.782
275In Stock

Mfr. Part #
TG110-RPE5N5RLTR

Mouser Part #
493-TG110-RPE5N5RLTR

HALO Electronics

Audio Transformers / Signal Transformers 10/100BASETX SMD 16P RP-Ultra PoE 1Port

Learn More

Datasheet

275In Stock

Cut Tape

$8.782

$5.679

$4.627

$3.744

Reel

$2.703

View

MouseReel Available

Min.: 1
Mult.: 1

: 700

LAN Isolation Transformers

Module

SMD/SMT

1 MHz to 80 MHz

1.5 kV

- 40 C

+ 85 C

Single

SMD-16

12.7 mm

7.11 mm

6.35 mm

TG110

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers GIGABIT ISO MOD GigE 2-Port

TG111-E212NWRLTR
HALO Electronics
1: $23.032
121In Stock

Mfr. Part #
TG111-E212NWRLTR

Mouser Part #
493-TG111-E212NWRLTR

HALO Electronics

Audio Transformers / Signal Transformers GIGABIT ISO MOD GigE 2-Port

Learn More

Datasheet

121In Stock

Cut Tape

$23.032

$14.881

$12.137

$9.812

Reel

$8.235

View

MouseReel Available

Min.: 1
Mult.: 1

: 300

LAN Isolation Transformers

Module

SMD/SMT

- 40 C

+ 85 C

27.94 mm

7.62 mm

8.64 mm

TG1G

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 10/100BASETX SMD 16P 1Port Choke

TG22-3506NDRL
HALO Electronics
1: $10.517
258In Stock

Mfr. Part #
TG22-3506NDRL

Mouser Part #
493-TG22-3506NDRL

HALO Electronics

Audio Transformers / Signal Transformers 10/100BASETX SMD 16P 1Port Choke

Learn More

Datasheet

258In Stock

$10.517

$3.208

Min.: 1
Mult.: 1

LAN Isolation Transformers

Module

SMD/SMT

100 kHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Single

SMD-16

25.4 mm

9.4 mm

Tube

Audio Transformers / Signal Transformers T1/E1 ISO MOD SMD GullWing 16P Dual Ch

TG74-1205N1LF
HALO Electronics
1: $5.311
120In Stock

Mfr. Part #
TG74-1205N1LF

Mouser Part #
493-TG74-1205N1LF

HALO Electronics

Audio Transformers / Signal Transformers T1/E1 ISO MOD SMD GullWing 16P Dual Ch

Learn More

Datasheet

120In Stock

$5.311

$3.450

$2.808

$2.272

View

Min.: 1
Mult.: 1

LAN Isolation Transformers

Module

SMD/SMT

1.2 mH

1.5 kV

0 C

+ 70 C

Dual

SMD-16

12.7 mm

7.11 mm

5.08 mm

SMD-T1

Tube

Audio Transformers / Signal Transformers SMD ISOLATION MODULE

TG74-1406N1LF
HALO Electronics
1: $4.838
117In Stock

Mfr. Part #
TG74-1406N1LF

Mouser Part #
493-TG74-1406N1LF

HALO Electronics

Audio Transformers / Signal Transformers SMD ISOLATION MODULE

Datasheet

117In Stock

$4.838

$3.113

$2.535

$2.051

View

Min.: 1
Mult.: 1

Isolation Transformers

Tube

Audio Transformers / Signal Transformers HV Balun Adaptor for SMPTE-292M HDTV

HFBL075100B
iNRCORE
1: $1.147.909
1In Stock
50Expected 10/7/2026

Mfr. Part #
HFBL075100B

Mouser Part #
673-HFBL075100B

iNRCORE

Audio Transformers / Signal Transformers HV Balun Adaptor for SMPTE-292M HDTV

Datasheet

1In Stock

50Expected 10/7/2026

$1.147.909

$1.065.836

Min.: 1
Mult.: 1

Baluns

Module

Connector

100 Ohms

- 55 C

+ 125 C

Single

HFBL

Tube

Audio Transformers / Signal Transformers LAN 1 Port 10/100/1000 Base-T T,C

ALANL10001-FJC1KT
ABRACON
1: $6.131
473In Stock

Mfr. Part #
ALANL10001-FJC1KT

Mouser Part #
815-ALANL10001FJC1KT

ABRACON

Audio Transformers / Signal Transformers LAN 1 Port 10/100/1000 Base-T T,C

Datasheet

473In Stock

Cut Tape

$6.131

$4.627

$4.407

$4.133

Reel

$3.313

View

MouseReel Available

Min.: 1
Mult.: 1

: 800

LAN Transformers

LAN

SMD/SMT

350 uH

- 40 C

+ 125 C

19.8 mm

16.6 mm

2.5 mm

ALANL10001

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers TC XFMR / SURF MT / HAT RoHS

TC9-1-75X+
Mini-Circuits
1: $4.449
454In Stock

Mfr. Part #
TC9-1-75X+

Mouser Part #
139-TC9-1-75X

Mini-Circuits

Audio Transformers / Signal Transformers TC XFMR / SURF MT / HAT RoHS

Datasheet

454In Stock

Cut Tape

$4.449

$3.239

$2.724

$2.535

Reel

$2.535

MouseReel Available

Min.: 1
Mult.: 1

: 500

TC9

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers GIGABIT ISO MOD SMD 24P 1-Port w/Choke

TG111-E112NYRL
HALO Electronics
1: $16.722
206In Stock

Mfr. Part #
TG111-E112NYRL

Mouser Part #
493-TG111-E112NYRL

HALO Electronics

Audio Transformers / Signal Transformers GIGABIT ISO MOD SMD 24P 1-Port w/Choke

Learn More

Datasheet

206In Stock

$16.722

$10.790

$7.698

$5.774

View

Min.: 1
Mult.: 1

LAN Isolation Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

- 40 C

+ 85 C

Single

SMD-24

15.24 mm

13.72 mm

6.35 mm

TG1G

Tube

Audio Transformers / Signal Transformers T1/E1 Quatra SMD 40P QuadPort ISO MOD

TG49-LVL1NXRL
HALO Electronics
1: $16.564
273In Stock

Mfr. Part #
TG49-LVL1NXRL

Mouser Part #
493-TG49-LVL1NXRL

HALO Electronics

Audio Transformers / Signal Transformers T1/E1 Quatra SMD 40P QuadPort ISO MOD

Learn More

Datasheet

273In Stock

$16.564

$4.743

$4.627

Min.: 1
Mult.: 1

Isolation Transformers

Module

SMD/SMT

100 kHz to 10 MHz

1.5 mH

800 mOhms

1.5 kV

- 40 C

+ 85 C

Quad

SMD-40

27.94 mm

12.19 mm

5.84 mm

SMD-T1

Tube

Audio Transformers / Signal Transformers M12 TRANS 10GBASE-T X STR WITH POE+

21033812823
HARTING
1: $33.475
60In Stock

Mfr. Part #
21033812823

Mouser Part #
617-21033812823

HARTING

Audio Transformers / Signal Transformers M12 TRANS 10GBASE-T X STR WITH POE+

Learn More

Datasheet

60In Stock

$33.475

$33.454

$33.433

$31.225

View

Min.: 1
Mult.: 1

PoE Transformers

SMD/SMT

10 MHz to 100 MHz

1.5 kV

- 40 C

+ 85 C

Quad

Audio Transformers / Signal Transformers 150-450uH 1500V AEC-Q200

HM2171HLT
Pulse Electronics
1: $4.659
1.426In Stock

Mfr. Part #
HM2171HLT

Mouser Part #
673-HM2171HLT

Pulse Electronics

Audio Transformers / Signal Transformers 150-450uH 1500V AEC-Q200

Learn More

Datasheet

1.426In Stock

Cut Tape

$4.659

$4.207

$3.828

$3.702

View

Reel

$2.724

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

150 uH to 450 uH

4300 Vrms

- 40 C

+ 125 C

2 Channel

14.81 mm

11.68 mm

4.88 mm

BMS

AEC-Q200

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers MDL,DUAL,1GD, 1:1, HF,SMT T&R

HX5020HLT
Pulse Electronics
1: $17.122
1.193In Stock

Mfr. Part #
HX5020HLT

Mouser Part #
673-HX5020HLT

Pulse Electronics

Audio Transformers / Signal Transformers MDL,DUAL,1GD, 1:1, HF,SMT T&R

Learn More

Datasheet

1.193In Stock

Cut Tape

$17.122

$13.525

$12.978

$12.568

Reel

$10.044

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT/ HAT RoHS

TC1-42X+
Mini-Circuits
1: $4.196
509In Stock

Mfr. Part #
TC1-42X+

Mouser Part #
139-TC1-42X

Mini-Circuits

Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT/ HAT RoHS

Learn More

Datasheet

509In Stock

Cut Tape

$4.196

$2.829

$2.314

$2.209

Reel

$2.135

MouseReel Available

Min.: 1
Mult.: 1

: 500

TC1

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS

TC2-112G2+
Mini-Circuits
1: $5.237
408In Stock

Mfr. Part #
TC2-112G2+

Mouser Part #
139-TC2-112G2

Mini-Circuits

Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS

Datasheet

408In Stock

Cut Tape

$5.237

$3.870

$3.323

$3.260

Reel

$3.260

MouseReel Available

Min.: 1
Mult.: 1

: 500

TC2

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers T1/E1 MiniOctal SMD 32P 8Channel ISO MOD

TG05-1505NURL
HALO Electronics
1: $22.454
386In Stock

Mfr. Part #
TG05-1505NURL

Mouser Part #
493-TG05-1505NURL

HALO Electronics

Audio Transformers / Signal Transformers T1/E1 MiniOctal SMD 32P 8Channel ISO MOD

Learn More

Datasheet

386In Stock

$22.454

$6.542

Quote

Min.: 1
Mult.: 1

Isolation Transformers

Module

SMD/SMT

1.5 mH

1.5 kV

- 40 C

+ 85 C

Quad

SMD-32

25.4 mm

7.62 mm

7.37 mm

SMD-T1

Tube

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