Audio Transformers / Signal Transformers

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TRS SMD Audio & Signal RF Transformers

Mini-Circuits TRS SMD Audio and Signal RF Transformers offer a 50Ω to 100Ω impedance range within the 4MHz to 2500MHz frequency band. The TRS transformers feature a balanced transmission line, excellent amplitude unbalance (0.3dB typical), and a good return loss of 20dB typical at the 1dB band within a -40°C to +85°C operating temperature range. The audio and signal transformers provide a 1W power rating and a 30mA maximum DC current.

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Part #

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

TRS1-182-75+
Mini-Circuits
1: $3.16
593In Stock

Mfr. Part #
TRS1-182-75+

Mouser Part #
139-TRS1-182-75

Mini-Circuits

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

Learn More

Datasheet

593In Stock

Cut Tape

$3.16

$3.01

Reel

$2.97

MouseReel Available

Min.: 1
Mult.: 1

: 100

TRS1

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1:2.78 CORE & WIRE Transformer, 40 - 1250 MHz, 75 Ohm

TRS278-122-75+
Mini-Circuits
1: $4.36
391In Stock

Mfr. Part #
TRS278-122-75+

Mouser Part #
139-TRS278-122-75+

Mini-Circuits

Audio Transformers / Signal Transformers 1:2.78 CORE & WIRE Transformer, 40 - 1250 MHz, 75 Ohm

Learn More

Datasheet

391In Stock

Cut Tape

$4.36

$4.23

Reel

$4.23

MouseReel Available

Min.: 1
Mult.: 1

: 100

RF Transformers

SMD/SMT

40 MHz to 1.25 GHz

- 40 C

+ 65 C

Single

7.11 mm

6.35 mm

4.19 mm

TRS278

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 10-1.8GHz, 75Ohms, 1:1 Core and Wire Transformer

TRS1-182-75-3+
Mini-Circuits
1: $2.89
A tariff of 5% may be applied if shipping to the United States.
17In Stock
500Expected 10/19/2026

Mfr. Part #
TRS1-182-75-3+

Mouser Part #
139-TRS1-182-75-3+

Mini-Circuits

Audio Transformers / Signal Transformers 10-1.8GHz, 75Ohms, 1:1 Core and Wire Transformer

Datasheet

17In Stock

500Expected 10/19/2026

Cut Tape

$2.89

$2.74

$2.72

Reel

$2.72

MouseReel Available

A tariff of 5% may be applied if shipping to the United States.

Min.: 1
Mult.: 1

: 500

RF Transformers

Transformer

SMD/SMT

10 MHz to 1.8 GHz

75 Ohms

50 Ohms

- 40 C

+ 100 C

1 Channel

6.1 mm x 4.32 mm x 4.06 mm

6.1 mm

4.32 mm

4.06 mm

TRS1

Reel, Cut Tape, MouseReel

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

TRS1.33-1T-75+
Mini-Circuits
1: $3.26
A tariff of 5% may be applied if shipping to the United States.
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

$3.26

Reel

$3.26

MouseReel Available

A tariff of 5% may be applied if shipping to the United States.

Min.: 1
Mult.: 1

: 100

TRS1.33

Reel, Cut Tape, MouseReel

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

TRS1-23-75+
Mini-Circuits
1: $3.16
335In Stock

Mfr. Part #
TRS1-23-75+

Mouser Part #
139-TRS1-23-75

Mini-Circuits

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

Learn More

Datasheet

335In Stock

Cut Tape

$3.16

$3.01

$2.97

Reel

$2.97

MouseReel Available

Min.: 1
Mult.: 1

: 500

TRS1

Reel, Cut Tape, MouseReel

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

TRS2-1T-75+
Mini-Circuits
1: $6.43
208In Stock

Mfr. Part #
TRS2-1T-75+

Mouser Part #
139-TRS2-1T-75

Mini-Circuits

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

Learn More

Datasheet

208In Stock

Cut Tape

$6.43

$5.63

Reel

$5.33

MouseReel Available

Min.: 1
Mult.: 1

: 100

TRS2

Reel, Cut Tape, MouseReel

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

TRS1.5-182+
Mini-Circuits
1: $6.43
A tariff of 5% may be applied if shipping to the United States.
995On Order

Mfr. Part #
TRS1.5-182+

Mouser Part #
139-TRS1.5-182+

Mini-Circuits

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

Learn More

Datasheet

995On Order

Cut Tape

$6.43

$5.86

Reel

$5.86

MouseReel Available

A tariff of 5% may be applied if shipping to the United States.

Min.: 1
Mult.: 1

: 100

RF Transformers

SMD/SMT

10 MHz to 1.8 GHz

50 Ohms

- 40 C

+ 85 C

Single

7.11 mm

6.35 mm

3.05 mm

TRS1.5

Reel, Cut Tape, MouseReel

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

TRS2-252+
Mini-Circuits
1: $4.80
A tariff of 5% may be applied if shipping to the United States.
2,200On Order

Mfr. Part #
TRS2-252+

Mouser Part #
139-TRS2-252

Mini-Circuits

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

Learn More

Datasheet

2,200On Order

Cut Tape

$4.80

$4.65

$4.62

Reel

$4.62

MouseReel Available

A tariff of 5% may be applied if shipping to the United States.

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

4 MHz to 2.5 GHz

50 Ohms

- 40 C

+ 85 C

Single

5.08 mm x 5.08 mm x 5.08 mm

5.08 mm

TRS2

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers RF Transformer SMT, 50 - 1000 MHz, 50 ohms

TRS1-1T-13-2A+
Mini-Circuits
500: $5.59
A tariff of 5% may be applied if shipping to the United States.
Non-Stocked Lead-Time 22 Weeks

Mfr. Part #
TRS1-1T-13-2A+

Mouser Part #
139-TRS1-1T-13-2A

Mini-Circuits

Audio Transformers / Signal Transformers RF Transformer SMT, 50 - 1000 MHz, 50 ohms

Datasheet

Non-Stocked Lead-Time 22 Weeks

Reel

$5.59

$4.99

A tariff of 5% may be applied if shipping to the United States.

Min.: 500
Mult.: 500

: 500

TRS1

Reel

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

TRS1.33-132-75+
Mini-Circuits
500: $3.52
A tariff of 5% may be applied if shipping to the United States.
Non-Stocked Lead-Time 22 Weeks

Mfr. Part #
TRS1.33-132-75+

Mouser Part #
139-TRS1.33-132-75

Mini-Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 22 Weeks

Reel

$3.52

$2.80

A tariff of 5% may be applied if shipping to the United States.

Min.: 500
Mult.: 500

: 500

TRS1.33

Reel

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

TRS2-32-75+
Mini-Circuits
1,000: $1.94
A tariff of 5% may be applied if shipping to the United States.
Non-Stocked Lead-Time 22 Weeks

Mfr. Part #
TRS2-32-75+

Mouser Part #
139-TRS2-32-75

Mini-Circuits

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

Learn More

Datasheet

Non-Stocked Lead-Time 22 Weeks

Reel

$1.94

$1.68

A tariff of 5% may be applied if shipping to the United States.

Min.: 1,000
Mult.: 1,000

: 1,000

TRS2

Reel

TRS SMD Audio & Signal RF Transformers

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