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 1500Vrms, 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.

Results: 10
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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Type
Termination Style
Frequency Range
Inductance
Minimum Operating Temperature
Maximum Operating Temperature
Number of Channels
Length
Width
Height
Series
Packaging
Coilcraft Audio Transformers / Signal Transformers Flyback PoE 51W 26.7uH 5V 4.5A
Datasheet
19In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 150

PoE Transformers Flyback SMD/SMT 250 kHz 26.7 uH - 40 C + 125 C Single 14.5 mm 13 mm 14 mm POE40Q Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 24V 3.7A
Datasheet
3In Stock
150Expected 10/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 150

PoE Transformers Flyback SMD/SMT 250 kHz 27.8 uH - 40 C + 125 C Single 14.5 mm 13 mm 14 mm POE40Q Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 48V 3.7A
Datasheet
68In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 150

PoE Transformers Flyback SMD/SMT 250 kHz 27.8 uH - 40 C + 125 C Single 14.5 mm 13 mm 14 mm POE40Q Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 24V 4.7A
Datasheet
211In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 150

PoE Transformers Flyback SMD/SMT 250 kHz 22.2 uH - 40 C + 125 C Single 14.5 mm 13 mm 14 mm POE40Q Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 48V 4.7A
Datasheet
1In Stock
150Expected 11/6/2026
MouseReel Available
Min.: 1
Mult.: 1
: 150

PoE Transformers Flyback SMD/SMT 250 kHz 22.2 uH - 40 C + 125 C Single 14.5 mm 13 mm 14 mm POE40Q Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 12V 3.7A
Datasheet
25In Stock
2,400On Order
MouseReel Available
Min.: 1
Mult.: 1
: 150

PoE Transformers Flyback SMD/SMT 250 kHz 27.8 uH - 40 C + 125 C Single 14.5 mm 13 mm 14 mm POE40Q Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 12V 4.7A
Datasheet
437Expected 9/25/2026
MouseReel Available
Min.: 1
Mult.: 1
: 150

PoE Transformers Flyback SMD/SMT 250 kHz 22.2 uH - 40 C + 125 C Single 14.5 mm 13 mm 14 mm POE40Q Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers Flyback PoE 40W 33.3uH 5V 3.5A
Datasheet
299Expected 9/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 150

PoE Transformers Flyback SMD/SMT 250 kHz 33.3 uH - 40 C + 125 C Single 14.5 mm 13 mm 14 mm POE40Q Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers Flyback PoE 40W 33.3uH 3.3V 3.5A
Datasheet
Non-Stocked Lead-Time 7 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 150

PoE Transformers Flyback SMD/SMT 250 kHz 33.3 uH - 40 C + 125 C Single 14.5 mm 13 mm 14 mm POE40Q Reel, Cut Tape, MouseReel
Coilcraft Audio Transformers / Signal Transformers Flyback PoE 51W 26.7uH 3.3V 4.5A
Datasheet
Non-Stocked Lead-Time 7 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 150

PoE Transformers Flyback SMD/SMT 250 kHz 26.7 uH - 40 C + 125 C Single 14.5 mm 13 mm 14 mm POE40Q Reel, Cut Tape, MouseReel