Audio Transformers / Signal Transformers

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TCM Surface-Mount RF Transformers

Mini-Circuits TCM Surface-Mount RF Transformers feature an ultra-wide bandwidth with good return loss and excellent amplitude and phase unbalance capability. The RF transformers provide an aqueous washable plastic base with solder-plated leads. The TCM series is ideal for various applications, including impedance matching, push-pull amplifiers, Wi-Fi^®, and more. The Mini-Circuits TCM Surface-Mount RF Transformers also offer models with Top-hat^® capability, which allows faster pick-and-place functions and enables visual identification marking.

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Part #

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

TCM8-1+
Mini-Circuits
1: S/60.61
2,294In Stock

Mfr. Part #
TCM8-1+

Mouser Part #
139-TCM8-1

Mini-Circuits

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

Learn More

Datasheet

2,294In Stock

Cut Tape

S/60.61

S/60.53

S/30.28

S/12.11

Reel

S/6.93

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

TCM8

Reel, Cut Tape, MouseReel

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

TCM3-452X+
Mini-Circuits
1: S/66.64
540In Stock

Mfr. Part #
TCM3-452X+

Mouser Part #
139-TCM3-452X

Mini-Circuits

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

Learn More

Datasheet

540In Stock

Cut Tape

S/66.64

S/21.02

S/19.77

S/18.02

Reel

S/18.02

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

TCM3

Reel, Cut Tape, MouseReel

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

TCM2-1T+
Mini-Circuits
1: S/66.72
1,096In Stock

Mfr. Part #
TCM2-1T+

Mouser Part #
139-TCM2-1T

Mini-Circuits

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

Learn More

Datasheet

1,096In Stock

Cut Tape

S/66.72

S/66.68

S/13.74

S/9.46

Reel

S/7.12

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

3 MHz to 300 MHz

50 Ohms

- 20 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM2

Reel, Cut Tape, MouseReel

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

TCM3-1TX+
Mini-Circuits
1: S/60.61
591In Stock

Mfr. Part #
TCM3-1TX+

Mouser Part #
139-TCM3-1TX

Mini-Circuits

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

Learn More

Datasheet

591In Stock

Cut Tape

S/60.61

S/60.57

S/22.93

S/9.19

Reel

S/7.63

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

TCM3

Reel, Cut Tape, MouseReel

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

TCM3-1T+
Mini-Circuits
1: S/66.68
45In Stock

Mfr. Part #
TCM3-1T+

Mouser Part #
139-TCM3-1T

Mini-Circuits

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

Learn More

Datasheet

45In Stock

Cut Tape

S/66.68

S/13.74

S/9.46

S/6.97

Reel

S/6.70

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

TCM3

Reel, Cut Tape, MouseReel

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

TCM1-1X+
Mini-Circuits
1: S/66.72
665In Stock

Mfr. Part #
TCM1-1X+

Mouser Part #
139-TCM1-1X

Mini-Circuits

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

Learn More

Datasheet

665In Stock

Cut Tape

S/66.72

S/66.68

S/16.85

S/8.25

Reel

S/6.81

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

TCM1

Reel, Cut Tape, MouseReel

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

TCM1-1+
Mini-Circuits
1: S/66.68
889In Stock

Mfr. Part #
TCM1-1+

Mouser Part #
139-TCM1-1

Mini-Circuits

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

Learn More

Datasheet

889In Stock

Cut Tape

S/66.68

S/12.53

S/8.25

S/6.42

S/6.15

Reel

S/5.84

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

1.5 MHz to 500 MHz

50 Ohms

- 20 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM1

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1:2 CORE & WIRE Transformer, 1500 - 6700 MHz, 50?

TCM2-672AX+
Mini-Circuits
1: S/66.09
566In Stock

Mfr. Part #
TCM2-672AX+

Mouser Part #
139-TCM2-672AX+

Mini-Circuits

Audio Transformers / Signal Transformers 1:2 CORE & WIRE Transformer, 1500 - 6700 MHz, 50?

Learn More

Datasheet

566In Stock

Cut Tape

S/66.09

S/38.46

S/35.69

S/32.93

Reel

S/32.85

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

Transformer

SMD/SMT

1.5 GHz to 6.7 GHz

50 Ohms

- 40 C

+ 85 C

1 Channel

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM2

Reel, Cut Tape, MouseReel

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

TCM4-452X+
Mini-Circuits
1: S/66.68
353In Stock
2,000Expected 10/19/2026

Mfr. Part #
TCM4-452X+

Mouser Part #
139-TCM4-452X

Mini-Circuits

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

Learn More

Datasheet

353In Stock

2,000Expected 10/19/2026

Cut Tape

S/66.68

S/21.02

S/19.77

S/17.94

Reel

S/16.54

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

20 MHz to 4.5 GHz

50 Ohms

- 40 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM4

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1:1 CORE & WIRE Transformer, 0.5 - 3800 MHz, 50?

TCM1-382WX+
Mini-Circuits
1: S/60.02
179In Stock
2,000Expected 8/31/2026

Mfr. Part #
TCM1-382WX+

Mouser Part #
139-TCM1-382WX

Mini-Circuits

Audio Transformers / Signal Transformers 1:1 CORE & WIRE Transformer, 0.5 - 3800 MHz, 50?

Learn More

Datasheet

179In Stock

2,000Expected 8/31/2026

Cut Tape

S/60.02

S/17.98

S/16.93

S/15.53

Reel

S/14.67

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

TCM1

Reel, Cut Tape, MouseReel

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

TCM4-14+
Mini-Circuits
1: S/66.68
157In Stock

Mfr. Part #
TCM4-14+

Mouser Part #
139-TCM4-14

Mini-Circuits

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

Learn More

Datasheet

157In Stock

Cut Tape

S/66.68

S/13.08

S/8.87

S/6.97

Reel

S/6.15

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

TCM4

Reel, Cut Tape, MouseReel

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

TCM4-1W+
Mini-Circuits
1: S/66.83
301In Stock

Mfr. Part #
TCM4-1W+

Mouser Part #
139-TCM4-1W

Mini-Circuits

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

Learn More

Datasheet

301In Stock

Cut Tape

S/66.83

S/66.68

S/12.53

S/8.25

Reel

S/6.19

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

3 MHz to 800 MHz

50 Ohms

- 20 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM4

Reel, Cut Tape, MouseReel

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

TCM4-25+
Mini-Circuits
1: S/66.68
737In Stock

Mfr. Part #
TCM4-25+

Mouser Part #
139-TCM4-25

Mini-Circuits

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

Learn More

Datasheet

737In Stock

Cut Tape

S/66.68

S/13.08

S/8.87

S/6.97

Reel

S/6.15

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

500 MHz to 2.5 GHz

50 Ohms

- 40 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM4

Reel, Cut Tape, MouseReel

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

TCM4-6T+
Mini-Circuits
1: S/66.72
86In Stock

Mfr. Part #
TCM4-6T+

Mouser Part #
139-TCM4-6T

Mini-Circuits

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

Learn More

Datasheet

86In Stock

Cut Tape

S/66.72

S/66.68

S/13.74

S/9.46

Reel

S/7.47

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

1.5 MHz to 600 MHz

50 Ohms

- 20 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM4

Reel, Cut Tape, MouseReel

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

TCM9-1+
Mini-Circuits
1: S/60.57
390In Stock
500Expected 11/11/2026

Mfr. Part #
TCM9-1+

Mouser Part #
139-TCM9-1

Mini-Circuits

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

Learn More

Datasheet

390In Stock

500Expected 11/11/2026

Cut Tape

S/60.57

S/13.31

S/9.07

S/7.32

Reel

S/6.50

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

2 MHz to 280 MHz

50 Ohms

- 20 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM9

Reel, Cut Tape, MouseReel

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

TCM4-1WX+
Mini-Circuits
1: S/66.72
344In Stock

Mfr. Part #
TCM4-1WX+

Mouser Part #
139-TCM4-1WX

Mini-Circuits

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

Learn More

Datasheet

344In Stock

Cut Tape

S/66.72

S/66.68

S/18.80

S/8.25

S/6.54

Reel

S/5.53

MouseReel Available

Min.: 1
Mult.: 1

: 500

TCM4

Reel, Cut Tape, MouseReel

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

TCM1-43X+
Mini-Circuits
1: S/66.68
3,595Expected 8/31/2026

Mfr. Part #
TCM1-43X+

Mouser Part #
139-TCM1-43X

Mini-Circuits

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

Learn More

Datasheet

3,595Expected 8/31/2026

Cut Tape

S/66.68

S/20.44

S/19.15

S/17.40

Reel

S/16.00

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

10 MHz to 4 GHz

50 Ohms

- 40 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM1

Reel, Cut Tape, MouseReel

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

TCM1-63AX+
Mini-Circuits
1: S/72.71
13,809On Order

Mfr. Part #
TCM1-63AX+

Mouser Part #
139-TCM1-63AX

Mini-Circuits

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

Learn More

Datasheet

13,809On Order

Cut Tape

S/72.71

S/42.27

S/39.24

S/36.20

S/33.40

Reel

S/31.68

MouseReel Available

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

: 500

RF Transformers

SMD/SMT

10 MHz to 6 GHz

50 Ohms

- 40 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM1

Reel, Cut Tape, MouseReel

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

TCM1-83X+
Mini-Circuits
1: S/84.86
15,593On Order

Mfr. Part #
TCM1-83X+

Mouser Part #
139-TCM1-83X

Mini-Circuits

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

Learn More

Datasheet

15,593On Order

Cut Tape

S/84.86

S/54.50

S/51.46

Reel

S/51.46

MouseReel Available

Min.: 1
Mult.: 1
Max.: 50

: 500

RF Transformers

SMD/SMT

10 MHz to 8 GHz

50 Ohms

- 40 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM1

Reel, Cut Tape, MouseReel

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

TCM2-33WX+
Mini-Circuits
1: S/66.68
8,500On Order

Mfr. Part #
TCM2-33WX+

Mouser Part #
139-TCM2-33WX

Mini-Circuits

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

Learn More

Datasheet

8,500On Order

Cut Tape

S/66.68

S/19.15

S/14.91

Reel

S/14.91

MouseReel Available

Min.: 1
Mult.: 1
Max.: 50

: 500

RF Transformers

SMD/SMT

10 MHz to 3 GHz

50 Ohms

- 40 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM2

Reel, Cut Tape, MouseReel

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

TCM2-33X+
Mini-Circuits
1: S/66.68
5,112On Order

Mfr. Part #
TCM2-33X+

Mouser Part #
139-TCM2-33X

Mini-Circuits

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

Learn More

Datasheet

5,112On Order

Cut Tape

S/66.68

S/17.40

S/16.19

S/13.74

Reel

S/13.08

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

30 MHz to 3 GHz

50 Ohms

- 40 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM2

Reel, Cut Tape, MouseReel

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

TCM2-43X+
Mini-Circuits
1: S/66.68
7,479On Order

Mfr. Part #
TCM2-43X+

Mouser Part #
139-TCM2-43X

Mini-Circuits

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

Learn More

Datasheet

7,479On Order

Cut Tape

S/66.68

S/21.02

S/19.77

S/17.94

Reel

S/16.54

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

10 MHz to 4 GHz

50 Ohms

- 40 C

+ 85 C

Single

4.06 mm x 3.81 mm x 4.06 mm

4.06 mm

3.81 mm

4.06 mm

TCM2

Reel, Cut Tape, MouseReel

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

TCM2-63WX+
Mini-Circuits
1: S/75.79
17,900On Order

Mfr. Part #
TCM2-63WX+

Mouser Part #
139-TCM2-63WX

Mini-Circuits

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

Learn More

Datasheet

17,900On Order

Cut Tape

S/75.79

S/43.83

S/40.79

S/37.76

S/34.92

Reel

S/33.16

MouseReel Available

Min.: 1
Mult.: 1
Max.: 500

: 500

TCM2

Reel, Cut Tape, MouseReel

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

TCM1-63AX-2+
Mini-Circuits
1: S/72.75
1,392On Order

Mfr. Part #
TCM1-63AX-2+

Mouser Part #
139-TCM1-63AX-2

Mini-Circuits

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

Learn More

Datasheet

1,392On Order

Cut Tape

S/72.75

S/72.71

S/42.62

S/36.20

Reel

S/36.20

MouseReel Available

Min.: 1
Mult.: 1
Max.: 100

: 500

TCM1

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers 1:1.5 CORE & WIRE Transformer, 200 - 6000 MHz, 50?

TCM1.5-63WX+
Mini-Circuits
1: S/60.57
997On Order
New Product

Mfr. Part #
TCM1.5-63WX+

Mouser Part #
139-TCM1.5-63WX+

New Product

Mini-Circuits

Audio Transformers / Signal Transformers 1:1.5 CORE & WIRE Transformer, 200 - 6000 MHz, 50?

Datasheet

997On Order

Cut Tape

S/60.57

S/17.28

S/15.53

S/14.56

S/14.21

Reel

S/14.21

MouseReel Available

Min.: 1
Mult.: 1

: 500

RF Transformers

SMD/SMT

200 MHz to 6 GHz

- 40 C

+ 85 C

3.81 mm

4.06 mm

TCM1.5

Reel, Cut Tape, MouseReel

TCM Surface-Mount RF Transformers

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