US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
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.
Flyback Transformers
Document 460-1
For 3 Watt, 7 Watt and 13 Watt
PoE Applications
Inductance Inductance Leakage
Part Power
at 0 A2 at Ipk3 DCR max (Ohms)4 inductance Turns ratio6 Ipk3
number1 (W) ±10% (µH) min (µH) pri bias sec max (µH)5 pri : sec pri : bias (A) Output7
POE30P-33L_ 3 310 279.0 1.02 2.01 0.066 4.75 1 : 0.19 1 : 0.70 0.3 3.3 V, 0.91 A
POE30P-50L_ 3 310 279.0 1.02 2.01 0.118 4.50 1 : 0.28 1 : 0.70 0.3 5.0 V, 0.6 A
POE30P-12L_ 3 310 279.0 1.04 2.01 0.700 4.25 1 : 0.70 1 : 0.70 0.3 12 V, 0.25 A
POE70P-33L_ 7 155 139.5 0.414 0.822 0.036 4.00 1 : 0.19 1 : 0.667 0.65 3.3 V, 2.12 A
POE70P-50L_ 7 155 139.5 0.414 0.822 0.060 3.60 1 : 0.262 1 : 0.667 0.65 5.0 V, 1.4 A
POE70P-12L_ 7 155 139.5 0.414 0.822 0.343 3.25 1 : 0.667 1 : 0.667 0.65 12 V, 0.6 A
POE13P-33L_ 13 127 114.3 0.255 0.310 0.024 1.25 1 : 0.166 1 : 0.50 1.0 3.3 V, 4.0 A
POE13P-50L_ 13 127 114.3 0.222 0.348 0.039 0.950 1 : 0.25 1 : 0.50 1.0 5.0 V, 2.6 A
POE13P-12L_ 13 127 114.3 0.199 0.308 0.065 0.650 1 : 0.50 1 : 0.50 1.0 12 V, 1.08 A
POE13P-19L_ 13 127 114.3 0.290 0.355 0.066 0.800 1 : 0.567 1 : 0.50 1.0 19.5 V, 0.67 A
POE13P-24L_ 13 127 114.3 0.255 0.315 0.067 0.600 1 : 0.667 1 : 0.50 1.0 24 V, 0.54 A
1. When ordering, please specify packaging code:
POE30P-12LD
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic
tape.
B = Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge), use
code letter D instead.
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.
4
1
3
28
6
Bias
Pri Sec
5
7
4
1
3
210
8
Bias
Pri Sec
7
9
Schematics
POE13P POE70P, POE30P
Secondary windings to be con-
nected in parallel on PC board
Secondary windings to be con-
nected in parallel on PC board
• 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
Designer’s Kit C395 contains two of each part shown in bold
Core 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
Storage temperature Component: –40°C to +85°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 with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Document 460-1 Revised 05/04/12
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
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.
Flyback Transformers for PoE
Document 460-2
Document 460-2 Revised 05/04/12
0.080
2,03
1
0.433
11,00
0.50
12,7
0.041
1,05
0.413
10,50
0.600
15,24 max
0.460
11,68
0.024
0,60
0.050
1,27
0.098
2,50
0.098
2,50
max
max
45
18
Recommended
Land Pattern
Dot indicates pin1
0.080
2,03
0.355
9,02
0.041
1,05
0.339
8,60
0.520
13,21max
0.028
0,70
0.050
1,27
0.098
2,50
max
0.430
10,92max
45
18
Dot indicates pin1
1
0.370
9,40
0.098
2,50
Recommended
Land Pattern
0.004 /0,10
0.004 /0,10
0.500
12,70
0.530
13,46
0.039
1,00
0.512
13,00
0.699
17,75 max
Part
number
Part
number
Part
number
Internal
code
Internal
code
Internal
code
0.028
0,70
0.098
2,50
max
max
56
110
Recommended
Land Pattern
0.004 /0,10
Dot indicates pin1
POE13P- LXX
XXXX Y
1
0.590
14,99
0.050
1,27
0.098
2,50
0.080
2,03
POE70P- LXX
XXXX Y
POE30P- LXX
XXXX Y
POE13P
POE70P
Packaging 175 per 13″ reel
Plastic tape: 32 mm wide, 0.5 mm thick,
28 mm pocket spacing, 12.93 mm pocket depth
POE30P
Packaging 200 per 13″ reel
Plastic tape: 32 mm wide, 0.5 mm thick,
24 mm pocket spacing, 11.2 mm pocket depth
Packaging 350 per 13″ reel
Plastic tape: 32 mm wide, 0.42 mm thick, 20 mm
pocket spacing, 9.16 mm pocket depth
Dimensions are in inches
mm
Parts manufactured prior to
April, 2012 may be marked
differently.
