About Power Transformers

Power Transformers

A power transformer is a device used to convert electrical energy from one AC voltage level to another. It is one of the most common components of an electrical power system, used to step up or step down the voltage of the electrical current as needed. It consists of one or more coils of insulated wire wrapped around an iron core, allowing the core to be magnetically charged to alter the current in the secondary coil when the primary coil is charged. Transformers are an efficient means of transferring energy between two circuits, resulting in minimal losses. The transformer must be designed to match the load characteristics; wrong design can result in increased losses, instability, and possible destruction of the transformer.

Power Transformers

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Image	Stock Code(▲▼)	Description	Manufacturer	Global Stock ⓘ (▲▼)	Price(USD) (Ex. GST)(▲▼)	Enter Qty	Product	Power Rating	Primary Voltage Rating	Secondary Voltage Rating	Secondary Current Rating	Mounting Style	Primary Winding	Secondary Winding	Length	Width	Height	Outside Diameter	Series

7491199112

Power Transformers WE-PoE Ethernet 127uH 100kHz 220mOhm

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
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35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.349

Multiples of: 1

Power Over Ethernet Transformers

13 W

36 v to 57 V

12 V

Smd/Smt

13.5 mm

17.75 mm

12.5 mm

We - Poe

7491199312

Power Transformers WE-PoE Ethernet 40uH 200kHz 0.11ohm

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
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34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.349

Multiples of: 1

Power Over Ethernet Transformers

13 W

36 v to 57 V

12 V

Smd/Smt

13.46 mm

17.75 mm

12.7 mm

We - Poe

749119433

Power Transformers WE-PoE+ Size EFD20 42uH 0.099ohm

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
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34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.383

Multiples of: 1

Poe - Power Over Ethernet Transformers

30 W

36 v to 72 V

3.3 V

Smd/Smt

29.08 mm

23.11 mm

11.43 mm

We - Poe +

7491199212

Power Over Ethernet (PoE) For For DC/DC Converters SMPS Transformer 1500Vrms Isolation Surface Mount

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.383

Multiples of: 1

Power Over Ethernet Transformers

13 W

36 v to 57 V

12 V

Smd/Smt

13.5 mm

17.75 mm

12.5 mm

We - Poe

750817018

Audio Transformers / Signal Transformers WE-UNIT Offline 2.19mH 3.790Ohms

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.4756

Multiples of: 100

Mid - Olifx

750313355

Wurth Electronics Midcom Transformers Audio & Signal WE-PoE 60W SMD EFD20 PoE 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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.5785

Multiples of: 1

Power Over Ethernet Transformer

29.08 mm

23.11 mm

11.43 mm

We - Poe

749119233

Power Transformers WE-PoE Size ER14.56 210uH 280mohm

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.587

Multiples of: 1

Poe - Power Over Ethernet Transformers

7 W

36 v to 57 V

3.3 V

700 mA

Smd/Smt

Single Primary Winding

Dual Secondary Winding

16.3 mm

16.8 mm

7.4 mm

We - Poe

78931812505

Power Transformers WE-PSPA 86 uH 750mA AEC-Q200

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
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34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.5955

Multiples of: 1

Push Pull Transformers

5 V

PCB Mount

Dual Primary Winding

Dual Secondary Winding

9.25 mm

8.3 mm

4.1 mm

WE - PSPA

78931812523

Power Transformers WE-PSPA 86 uH 165mA AEC-Q200

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.5955

Multiples of: 1

Push Pull Transformers

5 V

23 V

PCB Mount

Dual Primary Winding

Dual Secondary Winding

9.25 mm

8.3 mm

4.1 mm

WE - PSPA

78931812515

Power Transformers WE-PSPA 86 uH 250mA AEC-Q200

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.5955

Multiples of: 1

Push Pull Transformers

5 V

PCB Mount

Dual Primary Winding

Dual Secondary Winding

9.25 mm

8.3 mm

4.1 mm

WE - PSPA

78931812518

Power Transformers WE-PSPA 86 uH 210mA AEC-Q200

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.5955

Multiples of: 1

Push Pull Transformers

5 V

18 V

PCB Mount

Dual Primary Winding

Dual Secondary Winding

9.25 mm

8.3 mm

4.1 mm

WE - PSPA

750811644

Transformers Audio & Signal MID-OLEFD EFD20 TH .8uH 1.4A 24V

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.6125

Multiples of: 1

Converter Transformers

1.4 A

21.5 mm

29 mm

12 mm

Mid - Olefd

750310042

Audio Transformers / Signal Transformers MID-PoE Power over Ethernet Transformr

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.6465

Multiples of: 1

Poe Transformers

21.08 mm

10.8 mm

Mid - Poe

750811913

LED Drivers, AC/DC SMPS For For AC/DC Converters SMPS Transformer 4500Vrms Isolation 68 ~ 130kHz Surface Mount

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.723

Multiples of: 1

Transformers

1.4 A

21.5 mm

33.8 mm

12 mm

Mid - Olefd

750312872

Wurth Electronics Midcom Transformers Audio & Signal MID-FLY Flyback 14.0uH -10%

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.757

Multiples of: 1

Transformers

5 w to 100 W

25.9 A

43.18 mm

39.6 mm

30.48 mm

Mid - Fly

750871010

Wurth Electronics Midcom Transformers Audio & Signal MID-UNIT STM Offline 3.30mH 1.05Ohm

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.9015

Multiples of: 1

Power

Mid - Unit

750310562

Flyback Converters For For DC/DC Converters SMPS Transformer 1500Vrms Isolation 200kHz Surface Mount

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.961

Multiples of: 1

Power

749196108

Audio Transformers / Signal Transformers WE-FLEX Trnsfmr HV 224.6uH .02A

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.9695

Multiples of: 1

Signal

500 mA

12.9 mm

9.2 mm

6.5 mm

We - Flex Hv

750313417

Audio Transformers / Signal Transformers Offline SMD Freq 70-130kHz

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 Thu. 24 Jul to Mon. 04 Aug

August 2025

August 2025
	S	M	T	W	T	F	S
31	27	28	29	30	31	1	2
32	3	4	5	6	7	8	9
33	10	11	12	13	14	15	16
34	17	18	19	20	21	22	23
35	24	25	26	27	28	29	30
36	31	1	2	3	4	5	6

USD 3.978

Multiples of: 1

Signal

3.43 A

Mid - Olti

750340681

Power Transformers UtOLON MID 125-375V

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 Thu. 24 Jul to Mon. 04 Aug

August 2025