About Audio Transformers / Signal Transformers

Audio Transformers / Signal Transformers

Audio and signal transformers are electrical components that transfer power from one circuit to another through inductive coupling. They are commonly used to match different impedances and isolate circuits from one another. This is especially useful in audio and signal processing, as different devices often have incompatible impedances that can be matched with a transformer. Additionally, transformers can help reduce ground loop noise, provide galvanic isolation, and help regulate voltage levels. They consist of an iron core that the two windings are wrapped around. Power is then transferred between the primary and secondary winding in a way that preserves the signal integrity.

Audio Transformers / Signal Transformers

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Image	Stock Code(▲▼)	Description	Manufacturer	Availability ⓘ (▲▼)	Price(AUD) (Ex. GST)(▲▼)	Enter Qty	Product	Type	Termination Style	Frequency Range	Inductance	Primary Impedance	Secondary Impedance	Isolation Voltage	Minimum Operating Temperature	Maximum Operating Temperature	Number of Channels	Application	Package / Case	Length	Width	Height	Series	Qualification	Packaging

G4815S

1:1 1000M POE SMD-48P RJ45 Transformer ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

CND-tek

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
16	12	13	14	15	16	17	18
17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 1.5677

Multiples of: 1

ATB3225-75011CT

Audio Transformers / Signal Transformers 1:1 75ohms 5-200MHz 10dB
Icon ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

TDK

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
16	12	13	14	15	16	17	18
17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 1.5776

Multiples of: 1000

Balun Transformers

Smd/Smt

5 MHz to 200 MHz

75 Ohms

- 25 C

+ 85 C

Single

Cable Modem

3.2 mm x 2.5 mm x 2.3 mm

3.2 mm

2.5 mm

2.3 mm

Atb

Reel

QD48A01P

RJ45 Transformer Through Hole,48PIN RoHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

TNK

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
16	12	13	14	15	16	17	18
17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 1.5972

Multiples of: 1

QD48A01

RJ45 Transformer Through Hole,48PIN RoHS
Icon ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

TNK

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
16	12	13	14	15	16	17	18
17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 1.5999

Multiples of: 1

74930120

Audio Transformers Signal Transformers WE-STST 4532 110uH PoE+
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Wurth

0
Ships to you
by Tue. 11 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 1.6056

Multiples of: 1

PoE Transformers

SMD/SMT

110 uH

1.5 kV

- 40 C

+ 105 C

Single

Single Pair Ethernet, Ultrasonic Sensors

1812 (4532 METRIC)

4.7 mm

3.22 mm

2.9 mm

WE - STST

Reel , Cut Tape

74930100

Audio Transformers Signal Transformers WE-STST 4532 120uH 1Ch Sgl Pair Ether
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Wurth

0
Ships to you
by Tue. 11 Nov

November 2025

November 2025
	S	M	T	W	T	F	S
44	26	27	28	29	30	31	1
45	2	3	4	5	6	7	8
46	9	10	11	12	13	14	15
47	16	17	18	19	20	21	22
48	23	24	25	26	27	28	29
49	30	1	2	3	4	5	6

AUD 1.6325

Multiples of: 1

Signal Transformers

SMD/SMT

120 uH

- 40 C

+ 105 C

Single

4.7 mm

3.22 mm

2.9 mm

WE - STST

Reel , Cut Tape

TC4-1T+

Audio Transformers / Signal Transformers TC XFMR / SURF MOUNT / RoHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Mini-Circuits

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
16	12	13	14	15	16	17	18
17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 1.6365

Multiples of: 1

RF Transformers

SMD/SMT

500 KHz to 300 MHz

50 Ohms

- 20 C

+ 85 C

Single

3.81 mm x 3.81 mm x 4.06 mm

3.81 mm

4.06 mm

TC4

Reel , Cut Tape

S558-5500-JD

Audio Transformers / Signal Transformers XFRMR LAN 2.5G 60W POE SMD
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Bel Fuse

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
16	12	13	14	15	16	17	18
17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 1.6382

Multiples of: 1

PoE Transformers

SMD/SMT

1 MHz to 150 MHz

0 C

+ 70 C

Quad

PoE

17.53 mm

12.19 mm

5.71 mm

Reel , Cut Tape

TC1-1-13MG2+

Audio Transformers Signal Transformers TC XFMR SURF MOUNT RoHS
Icon ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Mini-Circuits

0
6 to 16 Weeks

April 2026

April 2026
	S	M	T	W	T	F	S
14	29	30	31	1	2	3	4
15	5	6	7	8	9	10	11
16	12	13	14	15	16	17	18
17	19	20	21	22	23	24	25
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9

AUD 1.6932

Multiples of: 1

RF Transformers

SMD/SMT

4.5 MHz to 3 GHz

50 Ohms

- 40 C

+ 85 C

Single

3.81 mm x 3.81 mm x 3.81 mm

3.81 mm

TC1

Reel , Cut Tape

15TB-151XINL

SMD RJ45 Transformer ROHS
Icon ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

YDS

0
6 to 16 Weeks

April 2026