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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 RF XFMR / SURF MOUNT / RoHS

ADT2-162T+
Mini-Circuits
1: $12.09
58In Stock

Mfr. Part No.
ADT2-162T+

Mouser Part No
139-ADT2-162T

Mini-Circuits

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

Datasheet

58In Stock

Cut Tape

$12.09

$11.41

Reel

$11.40

MouseReel Available

Min.: 1
Mult.: 1

: 100

ADT2

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1:2 CORE & WIRE Transformer, 50 - 1000 MHz, 75?

JTX-2-10TA+
Mini-Circuits
1: $28.68
31In Stock
100Expected 7/9/2026

Mfr. Part No.
JTX-2-10TA+

Mouser Part No
139-JTX-2-10TA

Mini-Circuits

Audio Transformers / Signal Transformers 1:2 CORE & WIRE Transformer, 50 - 1000 MHz, 75?

Datasheet

31In Stock

100Expected 7/9/2026

Cut Tape

$28.68

$16.06

$15.84

Reel

$15.84

MouseReel Available

Min.: 1
Mult.: 1

: 100

JTX

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1:1 CORE & WIRE Transformer, 0.08 - 200 MHz, 50?

T1-1T-X65+
Mini-Circuits
1: $9.86
29In Stock
80Expected 9/11/2026

Mfr. Part No.
T1-1T-X65+

Mouser Part No
139-T1-1T-X65+

Mini-Circuits

Audio Transformers / Signal Transformers 1:1 CORE & WIRE Transformer, 0.08 - 200 MHz, 50?

Datasheet

29In Stock

80Expected 9/11/2026

$9.86

$9.67

Min.: 1
Mult.: 1

RF Transformers

Plug-In Wire Transformer

Through Hole

80 kHz to 200 MHz

- 20 C

+ 85 C

1 Channel

DIP-6

7.62 mm

6.86 mm

5.84 mm

Tube

Audio Transformers / Signal Transformers 1:1:2 Core & Wire Transformer, 0.07-200 MHz, 50 ohm

T2-613-1-KK81+
Mini-Circuits
1: $4.30
158In Stock

Mfr. Part No.
T2-613-1-KK81+

Mouser Part No
139-T2-613-1-KK81

Mini-Circuits

Audio Transformers / Signal Transformers 1:1:2 Core & Wire Transformer, 0.07-200 MHz, 50 ohm

Datasheet

158In Stock

Cut Tape

$4.30

$4.27

$4.22

$3.81

Reel

$3.81

MouseReel Available

Min.: 1
Mult.: 1

: 100

RF Transformers

Core and Wire Transformer

SMD/SMT

70 kHz to 200 MHz

50 Ohms

- 20 C

+ 85 C

3 Channel

KK81

7.62 mm

6.86 mm

5.84 mm

Reel, Cut Tape, MouseReel

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

TC1-1-13M-75X+
Mini-Circuits
1: $4.42
618In Stock
4,000Expected 7/10/2026

Mfr. Part No.
TC1-1-13M-75X+

Mouser Part No
139-TC1-1-13M-75X

Mini-Circuits

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

Learn More

Datasheet

618In Stock

4,000Expected 7/10/2026

Cut Tape

$4.42

$2.86

$2.19

$2.03

Reel

$1.97

$1.92

MouseReel Available

Min.: 1
Mult.: 1

: 500

TC1

Reel, Cut Tape, MouseReel

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

TC1.33-1T-75X+
Mini-Circuits
1: $5.00
350In Stock

Mfr. Part No.
TC1.33-1T-75X+

Mouser Part No
139-TC1.33-1T-75X

Mini-Circuits

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

Learn More

Datasheet

350In Stock

Cut Tape

$5.00

$3.44

$2.77

$2.65

Reel

$2.53

MouseReel Available

Min.: 1
Mult.: 1

: 500

TC1.33

Reel, Cut Tape, MouseReel

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

TC1.5-52T+
Mini-Circuits
1: $6.09
122In Stock

Mfr. Part No.
TC1.5-52T+

Mouser Part No
139-TC1.5-52T

Mini-Circuits

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

Learn More

Datasheet

122In Stock

Cut Tape

$6.09

$4.30

$3.66

$3.51

Reel

$3.41

MouseReel Available

Min.: 1
Mult.: 1

: 500

TC1.5

Reel, Cut Tape, MouseReel

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

TCM3-1TX+
Mini-Circuits
1: $4.62
591In Stock

Mfr. Part No.
TCM3-1TX+

Mouser Part No
139-TCM3-1TX

Mini-Circuits

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

Learn More

Datasheet

591In Stock

Cut Tape

$4.62

$3.07

$2.42

$2.27

Reel

$2.27

MouseReel Available

Min.: 1
Mult.: 1

: 500

TCM3

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1:1 LTCC Transformer, 3100 - 4200 MHz, 50?

TCW1-422+
Mini-Circuits
1: $2.56
128In Stock

Mfr. Part No.
TCW1-422+

Mouser Part No
139-TCW1-422+

Mini-Circuits

Audio Transformers / Signal Transformers 1:1 LTCC Transformer, 3100 - 4200 MHz, 50?

Datasheet

128In Stock

Cut Tape

$2.56

Reel

$2.56

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

3.1 GHz to 4.2 GHz

- 55 C

+ 125 C

TCW1

Reel, Cut Tape, MouseReel

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

TRS1-23-75+
Mini-Circuits
1: $4.30
335In Stock

Mfr. Part No.
TRS1-23-75+

Mouser Part No
139-TRS1-23-75

Mini-Circuits

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

Learn More

Datasheet

335In Stock

Cut Tape

$4.30

$4.09

$4.04

Reel

$4.04

MouseReel Available

Min.: 1
Mult.: 1

: 500

TRS1

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers T1/E1 ISO MOD THT 6Pin 1CT:1CT 1Ch

TD15-1205ALF
HALO Electronics
1: $6.12
112In Stock

Mfr. Part No.
TD15-1205ALF

Mouser Part No
493-TD15-1205ALF

HALO Electronics

Audio Transformers / Signal Transformers T1/E1 ISO MOD THT 6Pin 1CT:1CT 1Ch

Learn More

Datasheet

112In Stock

$6.12

$3.96

$3.24

$2.61

View

Min.: 1
Mult.: 1

Isolation Transformers

Module

Through Hole

1.2 mH

1.5 kV

0 C

+ 70 C

Single

DIP-6

12.7 mm

8.89 mm

6.35 mm

TD-T1

Tube

Audio Transformers / Signal Transformers 10BASE-T SMD 1-Port GullWing 1:41

TG42-1406N1LF
HALO Electronics
1: $6.26
510In Stock

Mfr. Part No.
TG42-1406N1LF

Mouser Part No
493-TG42-1406N1LF

HALO Electronics

Audio Transformers / Signal Transformers 10BASE-T SMD 1-Port GullWing 1:41

Learn More

Datasheet

510In Stock

$6.26

$4.03

$3.28

$2.65

View

Min.: 1
Mult.: 1

LAN Isolation Transformers

Module

SMD/SMT

140 uH

1.5 kV

0 C

+ 70 C

Single

SMD-16

12.7 mm

7.11 mm

5.08 mm

TG-10BT

Tube

Audio Transformers / Signal Transformers

TG91-1505J24RL
HALO Electronics
1: $24.89
31In Stock

Mfr. Part No.
TG91-1505J24RL

Mouser Part No
493-TG91-1505J24RL

HALO Electronics

Audio Transformers / Signal Transformers

Datasheet

31In Stock

$24.89

$17.78

$14.93

$12.44

View

Min.: 1
Mult.: 1

Telecom Transformers

Isolated

SMD/SMT

- 40 C

+ 85 C

Octal

25.4 mm

7.62 mm

7.34 mm

SMD-T1

Tube

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

ADTT1.5-1+
Mini-Circuits
1: $8.87
197In Stock

Mfr. Part No.
ADTT1.5-1+

Mouser Part No
139-ADTT1.5-1

Mini-Circuits

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

Datasheet

197In Stock

Cut Tape

$8.87

Reel

$8.87

MouseReel Available

Min.: 1
Mult.: 1

: 100

ADTT1.5

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1:2.5 CORE & WIRE Transformer, 0.01 - 100 MHz, 50?

T2.5-6-KK81+
Mini-Circuits
1: $9.86
77In Stock

Mfr. Part No.
T2.5-6-KK81+

Mouser Part No
139-T2.5-6-KK81+

Mini-Circuits

Audio Transformers / Signal Transformers 1:2.5 CORE & WIRE Transformer, 0.01 - 100 MHz, 50?

Datasheet

77In Stock

Cut Tape

$9.86

$9.30

$8.98

$8.74

Reel

$8.74

MouseReel Available

Min.: 1
Mult.: 1

: 100

RF Transformers

Transformer

SMD/SMT

10 kHz to 100 MHz

50 Ohms

- 20 C

+ 85 C

1 Channel

7.62 mm x 6.86 mm x 5.84 mm

7.62 mm

6.86 mm

5.84 mm

T2.5

Reel, Cut Tape, MouseReel

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

TC4-14G2+
Mini-Circuits
1: $5.89
361In Stock

Mfr. Part No.
TC4-14G2+

Mouser Part No
139-TC4-14G2

Mini-Circuits

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

Datasheet

361In Stock

Cut Tape

$5.89

$4.30

$3.66

$3.51

Reel

$3.51

MouseReel Available

Min.: 1
Mult.: 1

: 500

TC4

Reel, Cut Tape, MouseReel

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

TC8-1G2+
Mini-Circuits
1: $5.30
294In Stock

Mfr. Part No.
TC8-1G2+

Mouser Part No
139-TC8-1G2

Mini-Circuits

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

Datasheet

294In Stock

Cut Tape

$5.30

$3.73

$3.07

$2.80

Reel

$2.80

MouseReel Available

Min.: 1
Mult.: 1

: 500

TC8

Reel, Cut Tape, MouseReel

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

TCML1-19+
Mini-Circuits
1: $4.62
161In Stock

Mfr. Part No.
TCML1-19+

Mouser Part No
139-TCML1-19

Mini-Circuits

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

Datasheet

161In Stock

Cut Tape

$4.62

$3.07

$2.42

$2.27

Reel

$2.27

MouseReel Available

Min.: 1
Mult.: 1

: 500

TCML1

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers

TG03-RF24NSRL
HALO Electronics
1: $11.02
62In Stock

Mfr. Part No.
TG03-RF24NSRL

Mouser Part No
493-TG03-RF24NSRL

HALO Electronics

Audio Transformers / Signal Transformers

62In Stock

$11.02

$7.86

$6.61

$5.51

View

Min.: 1
Mult.: 1

Audio Transformers / Signal Transformers T1/E1 ISO MOD SMD GullWing 6P SingleCh

TG04-1505NSRL
HALO Electronics
1: $7.21
396In Stock

Mfr. Part No.
TG04-1505NSRL

Mouser Part No
493-TG04-1505NSRL

HALO Electronics

Audio Transformers / Signal Transformers T1/E1 ISO MOD SMD GullWing 6P SingleCh

Learn More

Datasheet

396In Stock

$7.21

$4.68

$3.82

$3.09

View

Min.: 1
Mult.: 1

Isolation Transformers

Module

SMD/SMT

1.5 mH

1.5 kV

- 40 C

+ 85 C

Single

SMD-6

8.13 mm

7.11 mm

5.08 mm

SMD-T1

Tube

Audio Transformers / Signal Transformers GIGABIT ISO MOD GigE 10/100BASE-TX

TG111-E12NYNRLTR
HALO Electronics
1: $15.57
13In Stock

Mfr. Part No.
TG111-E12NYNRLTR

Mouser Part No
493-TG111-E12NYNRLTR

HALO Electronics

Audio Transformers / Signal Transformers GIGABIT ISO MOD GigE 10/100BASE-TX

Learn More

Datasheet

13In Stock

Cut Tape

$15.57

$10.05

$8.20

$6.62

Reel

$5.56

View

MouseReel Available

Min.: 1
Mult.: 1

: 330

LAN Isolation Transformers

Module

SMD/SMT

- 40 C

+ 85 C

15.24 mm

13.72 mm

6.35 mm

TG1G

Reel, Cut Tape, MouseReel

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

TG1G-S001NZRL
HALO Electronics
1: $15.30
353In Stock

Mfr. Part No.
TG1G-S001NZRL

Mouser Part No
493-TG1G-S001NZRL

HALO Electronics

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

Learn More

Datasheet

353In Stock

$15.30

$9.87

$8.05

$6.51

View

Min.: 1
Mult.: 1

LAN Isolation Transformers

Module

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 kV

0 C

+ 70 C

Dual

SMD-24

17.78 mm

12.19 mm

5.84 mm

TG1G

Tube

Audio Transformers / Signal Transformers 10BASE-T SMD 1-Port GullWing 1:2.5

TG92-2006N1LF
HALO Electronics
1: $6.32
212In Stock

Mfr. Part No.
TG92-2006N1LF

Mouser Part No
493-TG92-2006N1LF

HALO Electronics

Audio Transformers / Signal Transformers 10BASE-T SMD 1-Port GullWing 1:2.5

Learn More

Datasheet

212In Stock

$6.32

$4.08

$3.33

$2.69

View

Min.: 1
Mult.: 1

LAN Isolation Transformers

Module

SMD/SMT

200 uH

1.5 kV

- 40 C

+ 85 C

Single

SMD-16

12.7 mm

7.11 mm

5.08 mm

TG-10BT

Tube

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

T2-1-2W-KK81+
Mini-Circuits
1: $13.30
17In Stock
100Expected 19/10/2026
New At Mouser

Mfr. Part No.
T2-1-2W-KK81+

Mouser Part No
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 19/10/2026

$13.30

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: $13.82
5In Stock

Mfr. Part No.
T4-6T-X65+

Mouser Part No
139-T4-6T-X65

Mini-Circuits

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

Datasheet

5In Stock

$13.82

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

Transformers Audio & Signal

Transformers for Audio Applications

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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
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330 nH
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800 nH
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1 uH, 342 uH
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2.5 uH
2.925 uH, 5.85 uH
3.75 uH
4 uH
5 uH
6 uH, 17 uH

100 mOhms
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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
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4 Ohms
4 Ohms, 16 Ohms
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50 V
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100 VDC
100 Vrms
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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