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 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.
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
Only pure water or alcohol recommended
Part
number
1
POE30P-33L_
POE30P-50L_
POE30P-12L_
POE70P-33L_
POE70P-50L_
POE70P-12L_
POE13P-33L_
POE13P-50L_
POE13P-12L_
POE13P-19L_
POE13P-24L_
Inductance Inductance
Power
at 0 A
2
at
Ipk
3
(W)
±10% (µH)
min (µH)
3
3
3
7
7
7
13
13
13
13
13
310
310
310
155
155
155
127
127
127
127
127
279.0
279.0
279.0
139.5
139.5
139.5
114.3
114.3
114.3
114.3
114.3
DCR max (Ohms)
4
pri
bias sec
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
0.066
0.118
0.700
0.036
0.060
0.343
0.024
0.039
0.065
0.066
0.067
Leakage
Turns ratio
6
inductance
max (µH)
5
pri : sec pri : bias
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
Ipk
3
(A)
Output
7
0.3
3.3 V, 0.91 A
0.3
5.0 V, 0.6 A
0.3
12 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
1.0
5.0 V, 2.6 A
1.0
12 V, 1.08 A
1.0 19.5 V, 0.67 A
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.
Schematics
POE13P
3
Pri
4
2
Bias
1
Secondary windings to be
connected in parallel on
PC board
POE70P, POE30P
8
7
Sec
9
10
3
Pri
4
2
Bias
1
Secondary windings to be
connected in parallel on
PC board
6
5
Sec
7
8
Specifications subject to change without notice.
Please check our website for latest information.
Document 460-1
Revised 10/29/08
© Coilcraft, Inc. 2009
Document 460-2
Flyback Transformers for PoE
POE13P
0.500 max
12,70
Internal
Part
code number
Packaging
175 per 13″ reel
Plastic tape: 32 mm wide, 0.5 mm thick,
28 mm pocket spacing, 12.93 mm pocket depth
POE13P-
XX
L
CCI
XXXX
CHINA
0.039
1,00
0.004 /0,10
Dot indicates pin1
0.699 max
17,75
0.512
13,00
1
0.080
2,03
0.590
14,99
0.050
1,27
0.028
10 0,70
0.530 max
13,46
5
1
6
0.098
2,50
Recommended
Land Pattern
Internal
Part
code number
0.098
2,50
POE70P
0.433 max
11,00
Packaging
200 per 13″ reel
Plastic tape: 32 mm wide, 0.5 mm thick,
24 mm pocket spacing, 11.2 mm pocket depth
POE70P-
XX
L
CCI
XXXX
CHINA
0.041
1,05
0.004 /0,10
0.600
max
15,24
0.413
10,50
1
8
Dot indicates pin1
0.024
0,60
0.080
2,03
0.460
11,68
0.050
1,27
0.50 max
12,7
4
5
1
0.098
2,50
Recommended
Land Pattern
Internal
Part
code number
0.098
2,50
POE30P
0.355
max
9,02
0.041
1,05
0.004 /0,10
0.520
max
13,21
0.339
8,60
1
8
Packaging
350 per 13″ reel
Plastic tape: 32 mm wide, 0.42 mm thick,
20 mm pocket spacing, 9.16 mm pocket depth
POE30P-
XX
L
CCI
XXXX
CHINA
Dot indicates pin1
0.028
0,70
0.050
1,27
0.080
2,03
0.370
9,40
0.430
max
10,92
4
5
1
0.098
2,50
Recommended
0.098
Land Pattern
2,50
Dimensions are in
inches
mm
Specifications subject to change without notice.
Please check our website for latest information.
Document 460-2
Revised 10/29/08
© Coilcraft, Inc. 2009
FPGA/CPLD
