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	Global Stock ⓘ (▲▼)	Price(USD) (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

7490220120

Audio Transformers / Signal Transformers WE-LAN 10/100/1000 1Port ETR Base T SMD

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 3.638

Multiples of: 1

LAN Transformers

LAN

SMD/SMT

1 MHz to 100 MHz

350 uH

1.5 KVAC

- 40 C

+ 105 C

Quad

10/100/1000 Base - T

18.29 mm

16 mm

6.15 mm

WE - LAN

Reel , Cut Tape

74942400

Audio Transformers / Signal Transformers WE-BMS BMS 2 channels 1500V -40/ +125C

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 3.6975

Multiples of: 1

Transformers

SMT Transformer

SMD/SMT

450 uH

6.4 KVDC

- 40 C

+ 125 C

1 Channel

Energy Storage Systems

24.52 mm x 15.45 mm x 4.85 mm

24.52 mm

15.45 mm

4.85 mm

WE - BMS

Reel , Cut Tape

7499011448

Audio Transformers / Signal Transformers WE-RJ45LAN Integrated Transformer 10/100BASE-TX vertical LED L/R : green/yellow

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 3.7655

Multiples of: 1

LAN Transformers

LAN

Through Hole

350 uH

- 40 C

+ 85 C

15.65 mm

16.8 mm

16.9 mm

WE - RJ45LAN

Tray

749022011

Audio Transformers / Signal Transformers WE-LAN SMT TRANSFMR 1000BT 1Port PoE+ETR

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 3.8335

Multiples of: 1

LAN Transformers

SMD/SMT

350 uH

- 40 C

+ 85 C

Quad

LAN

18.3 mm

12.2 mm

6.35 mm

WE - LAN

Reel , Cut Tape

7490140141

Audio Transformers / Signal Transformers WE-LAN 10/100 Base-TX SMT Transformer 1Port 12pin pitch 2.54mm 4KVrms isolation

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 3.9695

Multiples of: 1

LAN Transformers

LAN Transformer

SMD/SMT

350 uH

- 40 C

+ 85 C

17.1 mm

14.5 mm

8.65 mm

WE - LAN

Reel , Cut Tape

749023010A

Audio Transformers / Signal Transformers WE-LAN Trans 1 Port 1000BT 1 Port

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 4.012

Multiples of: 1

LAN Transformers

SMD/SMT

350 uH

1500 V rms

0 C

+ 70 C

Single

LAN

17.5 mm

15.6 mm

5.4 mm

WE - LAN

Reel , Cut Tape

749020011A

Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port ETR

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 4.012

Multiples of: 1

LAN Transformers

SMD/SMT

350 uH

1500 V rms

- 40 C

+ 85 C

Single

LAN

17.5 mm

15.24 mm

6.5 mm

WE - LAN

Reel , Cut Tape

749020010A

Audio Transformers / Signal Transformers WE-LAN SMT Transfrmr 1000BT 1 Port

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 4.012

Multiples of: 1

LAN Transformers

SMD/SMT

350 uH

1500 V rms

- 40 C

+ 85 C

Single

LAN

17.5 mm

15.24 mm

6.5 mm

WE - LAN

Reel , Cut Tape

74991114410

Audio Transformers / Signal Transformers WE-RJ45LAN Integrated Transformer 10/100/1000BASE-T 1x1 vert LED L/R: grn/yell

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 4.4795

Multiples of: 1

LAN Transformers

LAN

Through Hole

350 uH

- 40 C

+ 85 C

16 mm

16.8 mm

16.9 mm

WE - RJ45LAN

Tray

749014010

Audio Transformers / Signal Transformers WE-LAN 1Port SMD Trnsfmr

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 4.6325

Multiples of: 1

LAN Transformers

LAN

SMD/SMT

1 MHz to 100 MHz

350 uH

4.5 KVAC

0 C

+ 70 C

Quad

10/100 Base - T

17.1 mm x 14.75 mm x 8.4 mm

17.1 mm

15.34 mm

8.4 mm

WE - LAN

Reel , Cut Tape

749050010A

Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port Transformer

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 4.692

Multiples of: 1

LAN Transformers

Module

SMD/SMT

0 C

+ 70 C

LAN

WE - LAN 10G

Reel , Cut Tape

7490240140

Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T SMT Transformer 1 Port 40pin pitch 1.27mm

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 5.7205

Multiples of: 1

LAN Transformers

LAN Transformer

SMD/SMT

350 uH

- 40 C

+ 85 C

28.32 mm

12.7 mm

WE - LAN

Reel , Cut Tape

7490240142

Audio Transformers / Signal Transformers WE-LAN 10/100/1000 Base-T SMT Transformer 1 Port 1000BASE-T 24pin pitch 1.27mm

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 5.7205

Multiples of: 1

LAN Transformers

LAN Transformer

SMD/SMT

350 uH

- 40 C

+ 85 C

18.25 mm

15.24 mm

10.02 mm

WE - LAN

Reel , Cut Tape

749050018

Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port ETR Trnsfmr

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 6.545

Multiples of: 1

LAN Transformers

Module

SMD/SMT

100 KHz to 500 MHz

120 uH

1.5 KVAC

- 40 C

+ 85 C

Single

LAN

13.97 mm

15.11 mm

6.6 mm

WE - LAN 10G

Reel , Cut Tape

7498010210A

Audio Transformers / Signal Transformers WE-RJ45LAN Integrated Transformer 10/100BASE-TX 1x1 LED L: green LED R yellow

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 6.6215

Multiples of: 1

LAN Transformers

LAN

SMD/SMT

350 uH

- 40 C

+ 85 C

15.65 mm

22.48 mm

11.3 mm

WE - RJ45LAN

Reel , Cut Tape

749014012

Wurth Electronics Midcom Transformers Audio & Signal WE-LAN SMD Extended 1 Port 10100 Base-T

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 7.276

Multiples of: 1

LAN Transformers

LAN

SMD/SMT

500 KHz to 100 MHz

350 uH

4 KVAC

0 C

+ 70 C

Single

10/100/1000 Base - T

24.55 mm x 17 mm x 10.85 mm

24.55 mm

18.25 mm

10.85 mm

WE - LAN

Reel , Cut Tape

749052050

Audio Transformers / Signal Transformers WE-LAN 10GBase-T SMD 1 Port 4PPoE Trnsfmr

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 7.888

Multiples of: 1

LAN Transformers

Module

SMD/SMT

100 KHz to 500 MHz

180 uH

1.5 KVAC

0 C

+ 70 C

Single

LAN

18.29 mm

16 mm

8.8 mm

WE - LAN 10G

Reel , Cut Tape

750510476

Audio Transformers / Signal Transformers MID-PLC Narrowband EE13 TI AFE031

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 8.143

Multiples of: 1

Signal Transformers

PLC

Through Hole

870 uH

4 KVAC

- 40 C

+ 125 C

Single

Metering Narrowband PLC Coupling

13.72 mm

19.8 mm

10.16 mm

WE - PLC

Tray

7499110120A

Audio Transformers / Signal Transformers WE-RJ45LAN Integrated Transformer 10/100/1000BASE-T vert LED L yell, LED R grn

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025

September 2025
	S	M	T	W	T	F	S
36	31	1	2	3	4	5	6
37	7	8	9	10	11	12	13
38	14	15	16	17	18	19	20
39	21	22	23	24	25	26	27
40	28	29	30	1	2	3	4
41	5	6	7	8	9	10	11

USD 8.7125

Multiples of: 1

LAN Transformers

LAN

Through Hole

350 uH

- 40 C

+ 85 C

15.95 mm

21.48 mm

16.9 mm

WE - RJ45LAN

Tray

74990214400

Audio Transformers / Signal Transformers WE-RJ45LAN Integrated Transformer 10/100BASE-TX 1x2,LED L/R green/yellow ETR

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

Availability : 4850
Ship by Fri. 12 Sep to Tue. 23 Sep

September 2025