POE300

Document 522 -1
Flyback Transformers
For 30 Watt
PoE Applications
• Designed to meet 30 W PoE IEEE 802.3at-2009 standard.
• Operates at 250 kHz with 36 – 72 Volts input.
• Isolation: 1500 Vrms, one minute pri to sec; 500 Vrms pri to aux
Designer’s Kit C398 contains three samples of each part.
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight 11.9 g
Ambient temperature –40°C to +125°C
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
Packaging 175 per 13″ reel Plastic tape: 44 mm wide, 0.4 mm thick,
32 mm pocket spacing, 11.9 mm pocket depth
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Part
number1
POE300F-33L_
POE300F-50L_
POE300F-12L_
POE300F-19L_
POE300F-24L_
InductanceInductance
DCR max (Ohms)
at 0 A2
at Ipk3
±10% (µH) min (µH)
pri4
sec4
aux
42.0
42.0
42.0
42.0
42.0
37.8
37.8
37.8
37.8
37.8
0.070
0.069
0.061
0.060
0.060
0.0023
0.0050
0.015
0.037
0.055
1. When ordering, please specify packaging code:
POE300F-50LD
Packaging:D
=13″ machine-ready reel. EIA-481 embossed plastic
tape (175 parts per full reel).
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, 0.7 Vrms, 0 Adc.
3. Peak primary current drawn at minimum input voltage.
4. DCR is with the windings connected in parallel.
5. Leakage inductance is for the primary winding with the secondary windings shorted.
6. Turns ratio is with the primary and the secondary windings connected in
parallel.
7. Output is with the secondary windings connected in parallel. Output of
the auxiliary winding is 12 V
8. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.220
0.225
0.195
0.195
0.195
Leakage
6
inductance5 Turns ratio max (µH) pri : sec pri : aux
3.00
1.60
0.545
0.430
0.310
1 : 0.09
1 : 0.14
1 : 0.33
1 : 0.56
1 : 0.67
1 : 0.33
1 : 0.33
1 : 0.33
1 : 0.33
1 : 0.33
Ipk3
(A)
Output7
2.6 3.3 V, 9 A
2.6 5 V, 6 A
2.6 12 V, 2.5 A
2.6 19.5 V, 1.5 A
2.6 24 V, 1.25 A
1
2
12
11
10
Pri
Sec
4
3
5
9
8
7
Aux
6
The primary windings and the secondary
windings to be connected in parallel on
the PC board.
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 522-1 Revised 03/15/12
© 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.
Document 522-2
Flyback Transformers for PoE Plus – POE300F
Dot indicates pin 1
12
1
0.810 max
20,57
Part number
POE300F-XXX
Internal code
XXXXY
6
7
1.181
max
30,00
Parts manufactured prior
to February, 2012 may be
marked differently.
0.450 max
11,43
0.084
2,13
0.004 /0,10
0.969
24,6
0.827
21,0
6
0.028
7 0,72
0.130
3,30
0.930
23,62
1
0.050
1,27
Recommended
Land Pattern
1
Dimensions are in
12
0.118
3,0
0.118
3,0
inches
mm
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 522-2 Revised 03/15/12
© 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.