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: CHF 11.11
593In Stock

Mfr. Part No.
TRS1-182-75+

Mouser Part No
139-TRS1-182-75

Mini-Circuits

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

Learn More

Datasheet

593In Stock

Cut Tape

CHF 11.11

CHF 11.10

CHF 3.25

CHF 2.30

Reel

CHF 2.24

View

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: CHF 10.09
391In Stock

Mfr. Part No.
TRS278-122-75+

Mouser Part No
139-TRS278-122-75+

Mini-Circuits

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

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Datasheet

391In Stock

Cut Tape

CHF 10.09

CHF 3.32

CHF 3.22

Reel

CHF 3.15

CHF 3.14

CHF 2.84

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: CHF 10.09
17In Stock
500Expected 10/19/2026

Mfr. Part No.
TRS1-182-75-3+

Mouser Part No
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

CHF 10.09

CHF 2.20

CHF 2.08

CHF 1.97

CHF 1.93

Reel

CHF 1.92

MouseReel Available

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: CHF 11.10
265In Stock

Mfr. Part No.
TRS1.33-1T-75+

Mouser Part No
139-TRS1.33-1T-75

Mini-Circuits

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

Learn More

Datasheet

265In Stock

Cut Tape

CHF 11.10

CHF 2.41

CHF 2.30

Reel

CHF 2.30

MouseReel Available

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: CHF 11.11
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

CHF 11.11

CHF 11.10

CHF 3.25

CHF 2.56

Reel

CHF 2.18

View

MouseReel Available

Min.: 1
Mult.: 1

: 100

TRS1

Reel, Cut Tape, MouseReel

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

TRS2-1T-75+
Mini-Circuits
1: CHF 11.09
208In Stock

Mfr. Part No.
TRS2-1T-75+

Mouser Part No
139-TRS2-1T-75

Mini-Circuits

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

Learn More

Datasheet

208In Stock

Cut Tape

CHF 11.09

CHF 4.90

CHF 4.28

Reel

CHF 3.90

CHF 3.78

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: CHF 11.10
556In Stock
500Expected 9/14/2026

Mfr. Part No.
TRS1.5-182+

Mouser Part No
139-TRS1.5-182+

Mini-Circuits

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

Learn More

Datasheet

556In Stock

500Expected 9/14/2026

Cut Tape

CHF 11.10

CHF 4.90

CHF 4.28

Reel

CHF 3.90

CHF 3.51

MouseReel Available

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: CHF 12.34
2’200On Order

Mfr. Part No.
TRS2-252+

Mouser Part No
139-TRS2-252

Mini-Circuits

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

Learn More

Datasheet

2’200On Order

Cut Tape

CHF 12.34

CHF 3.65

CHF 3.63

Reel

CHF 3.63

MouseReel Available

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: CHF 4.43
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
TRS1-1T-13-2A+

Mouser Part No
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

CHF 4.43

CHF 4.08

Min.: 500
Mult.: 500

: 500

TRS1

Reel

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

TRS1.33-132-75+
Mini-Circuits
500: CHF 2.79
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
TRS1.33-132-75+

Mouser Part No
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

CHF 2.79

CHF 2.36

Min.: 500
Mult.: 500

: 500

TRS1.33

Reel

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

TRS2-32-75+
Mini-Circuits
1’000: CHF 1.54
Non-Stocked Lead-Time 22 Weeks

Mfr. Part No.
TRS2-32-75+

Mouser Part No
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

CHF 1.54

CHF 1.36

Min.: 1’000
Mult.: 1’000

: 1’000

TRS2

Reel

TRS SMD Audio & Signal RF Transformers

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