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Document 1516-1
High Power PoE Flyback Transformers
Halogen
Free
• Developed for Flyback DC/DC PoE PD power converters
up to 71 W
• Designed to meet the upcoming IEEE802.3bt standard and
operates with 36 – 57 V input
• 1500Vrms, one minute isolation (hipot) between primary and
auxiliary to secondary.
• Perfect solution for high power PoE applications including
Smart Building and IoT
Core material Ferrite
Environment RoHS compliant, halogen free
Terminations Tin-silver-copper over tin over nickel over phos bronze.
Weight 12 g – 14 g
Ambient temperature –40°C to +125°C
Maximum part temperature +165°C (Ambient + temp rise)
Storage temperature Component: –40°C to +165°C
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
Inductance
at 0 A2
±±0ꢀ (ꢁµ)
Leakage
inductance3
max (ꢁµ)
DCR max (mOhms)
Turns ratio
pri : sec : aux
Part
Power
(W)
Isat4
(A)
number1
pri
sec
aux
Output5
POE62F-33ED
POE62F-50ED
POE62F-12ED
POE62F-24ED
POE62F-48ED
62
62
62
62
62
22.2
22.2
17.8
17.8
17.8
34.9
34.9
18.9
18.9
18.9
2
2.8
9.2
36.3
130
130
108
108
108
0.50
0.38
0.17
0.12
0.11
1 : 0.143 : 0.50
1 : 0.214 : 0.50
1 : 0.5 : 0.50
1 : 1 : 0.50
5.4
5.4
5.7
5.7
5.7
3.3 V, 17.1 A
5 V, 11.3 A
12 V, 4.7 A
24 V, 2.4 A
48 V, 1.2 A
140
1 : 2 : 0.50
POE71F-33ED
POE71F-50ED
POE71F-12ED
POE71F-24ED
POE71F-48ED
71
71
71
71
71
18.9
18.9
15.5
15.5
15.5
34.9
34.9
18.9
18.9
18.9
2
130
130
108
108
108
0.50
0.38
0.17
0.12
0.11
1 : 0.143 : 0.50
1 : 0.214 : 0.50
1 : 0.5 : 0.50
1 : 1 : 0.50
6.3
6.3
6.6
6.6
6.6
3.3 V, 19.7 A
5 V, 13 A
12 V, 5.4 A
24 V, 2.7 A
48 V, 1.35 A
2.8
9.2
36.3
140
1 : 2 : 0.50
1. Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic
tape (175 parts per full reel). Quantities less than full
reel available: in tape (not machine ready) or with
leader and trailer ($25 charge).
Schematics
2. Inductance is for the primary, measured at 250 kHz, 0.5 Vrms, 0 Adc.
3. Leakage inductance is for the primary with the secondary and aux
windings shorted.
12
11
10
1
2
4. DC current applied at the primary at 25°C that causes an inductance
drop of <10% from its value without current.
Pri
Sec
5. Output is for the secondary. Output of the aux winding is 12 V, 30 mA.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
4
3
9
8
7
5
Connect pins 10, 11
and 12 together and
pins 7, 8 and 9 together
on the PC board.
Aux
6
Connect pin 1 to 2
and pin 3 to 4 on
the PC board.
Document 1516-1 Revised 05/05/22
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2022
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
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