Audio Transformers / Signal Transformers

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High Power Flyback Transformers for PoE

Coilcraft High Power Flyback Transformers for Power over Ethernet (PoE) are developed for flyback PoE DC/DC PD power converters up to 51W. These transformers are designed to meet IEEE 802.3bt standards and operate at a 250kHz frequency with a 36V to 57V input voltage range. The series offers 1500V_rms, 1-minute isolation (hipot) between primary and auxiliary to secondary. Coilcraft High Power Flyback Transformers are an ideal solution for high-power PoE applications that include smart buildings and IoT.

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Part #

Audio Transformers / Signal Transformers Flyback PoE 40W 33.3uH 3.3V 3.5A

POE40Q-33ED
Coilcraft
1: £4.64
102In Stock

Mfr. Part No.
POE40Q-33ED

Mouser Part No
994-POE40Q-33ED

Coilcraft

Audio Transformers / Signal Transformers Flyback PoE 40W 33.3uH 3.3V 3.5A

Learn More

Datasheet

102In Stock

Cut Tape

£4.64

£3.51

£3.34

£3.13

Reel

£2.86

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

PoE Transformers

Flyback

SMD/SMT

250 kHz

33.3 uH

- 40 C

+ 125 C

Single

PoE

14.5 mm

13 mm

14 mm

POE40Q

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 48V 3.7A

POE40Q-48ED
Coilcraft
1: £4.64
106In Stock

Mfr. Part No.
POE40Q-48ED

Mouser Part No
994-POE40Q-48ED

Coilcraft

Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 48V 3.7A

Learn More

Datasheet

106In Stock

Cut Tape

£4.64

£3.51

£3.34

£3.13

Reel

£2.86

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

PoE Transformers

Flyback

SMD/SMT

250 kHz

27.8 uH

- 40 C

+ 125 C

Single

PoE

14.5 mm

13 mm

14 mm

POE40Q

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 12V 4.7A

POE51Q-12ED
Coilcraft
1: £4.64
58In Stock

Mfr. Part No.
POE51Q-12ED

Mouser Part No
994-POE51Q-12ED

Coilcraft

Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 12V 4.7A

Learn More

Datasheet

58In Stock

Cut Tape

£4.64

£3.51

£3.34

£3.13

Reel

£2.86

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

PoE Transformers

Flyback

SMD/SMT

250 kHz

22.2 uH

- 40 C

+ 125 C

Single

PoE

14.5 mm

13 mm

14 mm

POE40Q

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 48V 4.7A

POE51Q-48ED
Coilcraft
1: £4.64
35In Stock
150Expected 13/03/2026

Mfr. Part No.
POE51Q-48ED

Mouser Part No
994-POE51Q-48ED

Coilcraft

Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 48V 4.7A

Learn More

Datasheet

35In Stock

150Expected 13/03/2026

Cut Tape

£4.64

£3.51

£3.34

£3.13

Reel

£2.86

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

PoE Transformers

Flyback

SMD/SMT

250 kHz

22.2 uH

- 40 C

+ 125 C

Single

PoE

14.5 mm

13 mm

14 mm

POE40Q

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 24V 3.7A

POE40Q-24ED
Coilcraft
1: £4.64
106In Stock

Mfr. Part No.
POE40Q-24ED

Mouser Part No
994-POE40Q-24ED

Coilcraft

Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 24V 3.7A

Learn More

Datasheet

106In Stock

Cut Tape

£4.64

£3.51

£3.34

£3.13

Reel

£2.86

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

PoE Transformers

Flyback

SMD/SMT

250 kHz

27.8 uH

- 40 C

+ 125 C

Single

PoE

14.5 mm

13 mm

14 mm

POE40Q

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flyback PoE 40W 33.3uH 5V 3.5A

POE40Q-50ED
Coilcraft
1: £4.64
145In Stock

Mfr. Part No.
POE40Q-50ED

Mouser Part No
994-POE40Q-50ED

Coilcraft

Audio Transformers / Signal Transformers Flyback PoE 40W 33.3uH 5V 3.5A

Learn More

Datasheet

145In Stock

Cut Tape

£4.64

£3.51

£3.34

£3.13

Reel

£2.86

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

PoE Transformers

Flyback

SMD/SMT

250 kHz

33.3 uH

- 40 C

+ 125 C

Single

PoE

14.5 mm

13 mm

14 mm

POE40Q

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 24V 4.7A

POE51Q-24ED
Coilcraft
1: £4.64
164In Stock

Mfr. Part No.
POE51Q-24ED

Mouser Part No
994-POE51Q-24ED

Coilcraft

Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 24V 4.7A

Learn More

Datasheet

164In Stock

Cut Tape

£4.64

£3.51

£3.34

£3.13

Reel

£2.86

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

PoE Transformers

Flyback

SMD/SMT

250 kHz

22.2 uH

- 40 C

+ 125 C

Single

PoE

14.5 mm

13 mm

14 mm

POE40Q

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flyback PoE 51W 26.7uH 3.3V 4.5A

POE51Q-33ED
Coilcraft
1: £4.64
138In Stock

Mfr. Part No.
POE51Q-33ED

Mouser Part No
994-POE51Q-33ED

Coilcraft

Audio Transformers / Signal Transformers Flyback PoE 51W 26.7uH 3.3V 4.5A

Learn More

Datasheet

138In Stock

Cut Tape

£4.64

£3.51

£3.34

£3.13

Reel

£2.86

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

PoE Transformers

Flyback

SMD/SMT

250 kHz

26.7 uH

- 40 C

+ 125 C

Single

PoE

14.5 mm

13 mm

14 mm

POE40Q

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flyback PoE 51W 26.7uH 5V 4.5A

POE51Q-50ED
Coilcraft
1: £4.64
135In Stock

Mfr. Part No.
POE51Q-50ED

Mouser Part No
994-POE51Q-50ED

Coilcraft

Audio Transformers / Signal Transformers Flyback PoE 51W 26.7uH 5V 4.5A

Learn More

Datasheet

135In Stock

Cut Tape

£4.64

£3.51

£3.34

£3.13

Reel

£2.86

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

PoE Transformers

Flyback

SMD/SMT

250 kHz

26.7 uH

- 40 C

+ 125 C

Single

PoE

14.5 mm

13 mm

14 mm

POE40Q

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 12V 3.7A

POE40Q-12ED
Coilcraft
1: £4.64
323Expected 13/03/2026

Mfr. Part No.
POE40Q-12ED

Mouser Part No
994-POE40Q-12ED

Coilcraft

Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 12V 3.7A

Learn More

Datasheet

323Expected 13/03/2026

Cut Tape

£4.64

£3.51

£3.34

£3.13

Reel

£2.86

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 150

PoE Transformers

Flyback

SMD/SMT

250 kHz

27.8 uH

- 40 C

+ 125 C

Single

PoE

14.5 mm

13 mm

14 mm

POE40Q

Reel, Cut Tape, MouseReel

High Power Flyback Transformers for PoE

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