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Document 460-1

Flyback Transformers

For 3 Watt, 7 Watt and 13 Watt
PoE Applications• Flyback transformers for PoE applications• Designed to operate in continuous mode at 250 kHz with an
input of 36 – 72 Vdc• 1500 Vrms, one minute isolation from primary and bias to second­ary; 500 Vrms, 1 minute isolation between all other windings
Designer’s Kit C395 contains two of each part shown in boldCore material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight POE13P: 6.15 g; POE70P: 3.85 g; POE30P: 2.05 g
Ambient temperature –40°C to +85°C
Max part temperature +125°C (ambient + temp rise)
Storage temperature Component: –40°C to +125°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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
PCB washing Tested to MIL-STD-202 Method 215 plus an additionalaqueous wash. See Doc787_PCB_Washing.pdf.			 Inductance Inductance		
DCR max (Ohms)4PartPower	 at 0 A2
at Ipk3
number1(W) ±10% (µH) min (µH) pri  bias  secPOE30P-33L_
POE30P-50L_
POE30P-12L_
POE70P-33L_
POE70P-50L_
POE70P-12L_
POE13P-33L_
POE13P-50L_
POE13P-12L_
POE13P-19L_
POE13P-24L_

3337771313131313310
310
310
155
155
155
127
127
127127
127

279.0
279.0
279.0
139.5
139.5
139.5
114.3
114.3
114.3
114.3
114.3

1.02
1.02
1.04
0.414
0.414
0.414
0.255
0.222
0.199
0.290
0.255

2.01
2.01
2.01
0.822
0.822
0.822
0.310
0.348
0.308
0.355
0.315

1. When ordering, please specify packaging code:
POE30P-12LD
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic
tape. Quantities less than full reel available: in tape(not machine ready) or with leader and trailer ($25charge).
B = Less than full reel. In an effort to simplify our partnumbering system, Coilcraft is eliminating the needfor multiple packaging codes. When ordering, simply
change the last letter of your part number from B to D.
2. Inductance is for the primary, measured at 250 kHz, 0.1 Vrms, 0 Adc.
3. Ipk is peak primary current drawn at minimum input voltage.
4. DCR for the secondary is per winding.
5. Leakage inductance measured between pins 3 and 4 with all other pins
shorted.
6. Turns ratio is with the secondary windings connected in parallel.
7. Output of the secondary is with the windings connected in parallel. Bias
winding output is 12 V, 20 mA.
8. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.

LeakageTurns ratio6inductancemax (µH)5 pri : sec pri : bias

0.066
0.118
0.700
0.036
0.060
0.343
0.024
0.039
0.065
0.066
0.067

4.75
4.50
4.25
4.00
3.60
3.25
1.25
0.950
0.650
0.800
0.600

1 : 0.19
1 : 0.28
1 : 0.70
1 : 0.19
1 : 0.262
1 : 0.667
1 : 0.166
1 : 0.25
1 : 0.50
1 : 0.567
1 : 0.667

1 : 0.70
1 : 0.70
1 : 0.70
1 : 0.667
1 : 0.667
1 : 0.667
1 : 0.50
1 : 0.50
1 : 0.50
1 : 0.50
1 : 0.50

Ipk3(A)

Output7

0.3
3.3 V, 0.91 A
0.3
5.0 V, 0.6 A
0.312 V, 0.25 A
0.65 3.3 V, 2.12 A
0.65 5.0 V, 1.4 A
0.65 12 V, 0.6 A
1.0
3.3 V, 4.0 A
1.05.0 V, 2.6 A
1.012 V, 1.08 A
1.0 19.5 V, 0.67 A
1.024 V, 0.54 A

Schematics
POE13P

POE70P, POE30P387365PriSecPriSec491047822BiasBias11

Secondary windings to be connected in parallel on PC board

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

Secondary windings to be connected in parallel on PC board

Document 460-1

Revised 11/04/20© Coilcraft Inc. 2020
This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.

Document 460-2

Flyback Transformers for PoE
POE13PInternalcodePartnumber

POE13P-XXL

XXXX Y

0.500 max
12,70

Packaging 175 per 13″ reel
Plastic tape: 32 mm wide, 0.5 mm thick,
28 mm pocket spacing, 12.93 mm pocket depth

0.004 /0,100.039
1,00

Dot indicates pin10.699 max
17,75
0.512
13,000.080
2,030.028
10 0,701Parts manufactured prior toApril, 2012 may be marked
differently.

0.050
1,270.590
14,990.530 max
13,4651

6Recommended
Land Pattern

0.098
2,50

POE70PInternal
code

PartnumberPackaging 200 per 13″ reel
Plastic tape: 32 mm wide, 0.5 mm thick,
24 mm pocket spacing, 11.2 mm pocket depth

POE70P-XXL

XXXX Y

0.433 max
11,00

0.098
2,50

0.004 /0,100.041
1,05

Dot indicates pin10.600
max
15,240.413
10,50

0.024
0,60

0.080
2,03

8

10.460
11,68

0.050
1,27

0.50 max
12,7
415

Recommended
Land Pattern

0.098
2,50

POE30PInternalcode

0.004 /0,100.520
max
13,210.339
8,60
1Part
numberPackaging 350 per 13″ reel
Plastic tape: 32 mm wide, 0.45 mm thick, 20 mm
pocket spacing, 9.35 mm pocket depth

POE30P-XXL

0.041
1,05

XXXX Y

0.355
max
9,020.098
2,50

Dot indicates pin1
0.028
0,70
80.0802,030.370
9,400.050
1,270.430
max
10,92
4

5

10.0982,50

Recommended 0.098
Land Pattern 2,50

Dimensions are in

US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.twChina +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg

inchesmmDocument 460-2

Revised 11/04/20© Coilcraft Inc. 2020
This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.