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: $20.17
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

$20.17

$20.16

$5.92

$4.18

Reel

$3.44

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

TRS1

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: $18.32
21In Stock
500Expected 2026-10-19

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

21In Stock

500Expected 2026-10-19

Cut Tape

$18.32

$4.00

$3.79

$3.59

$3.50

Reel

$3.48

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: $20.16
271In 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

271In Stock

Cut Tape

$20.16

$4.38

$4.18

Reel

$4.18

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: $20.17
435In 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

435In Stock

Cut Tape

$20.17

$20.16

$5.92

$4.65

Reel

$3.95

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: $20.15
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

$20.15

$8.88

$7.78

Reel

$7.08

$7.03

View

MouseReel Available

Min.: 1
Mult.: 1

: 100

TRS2

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: $18.32
891In 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

891In Stock

Cut Tape

$18.32

$6.03

$5.85

$5.73

Reel

$5.72

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

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 RF XFMR / SURF MT / RoHS

TRS1.5-182+
Mini-Circuits
1: $20.16
556In Stock
500Expected 2026-09-14

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

556In Stock

500Expected 2026-09-14

Cut Tape

$20.16

$8.88

$7.78

$7.08

$6.38

Reel

$6.38

MouseReel Available

Min.: 1
Mult.: 1

: 500

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: $22.41
2,400Expected 2026-11-09

Mfr. Part #
TRS2-252+

Mouser Part #
139-TRS2-252

Mini-Circuits

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

Learn More

Datasheet

2,400Expected 2026-11-09

Cut Tape

$22.41

$6.64

$6.60

Reel

$6.60

MouseReel Available

Min.: 1
Mult.: 1

: 100

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: $8.05
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

$8.05

$7.19

Min.: 500
Mult.: 500

: 500

TRS1

Reel

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

TRS1.33-132-75+
Mini-Circuits
500: $5.07
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

$5.07

$4.03

Min.: 500
Mult.: 500

: 500

TRS1.33

Reel

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

TRS2-32-75+
Mini-Circuits
1,000: $2.79
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

$2.79

$2.42

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

: 1,000

TRS2

Reel

TRS SMD Audio & Signal RF Transformers

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