Document 402-1
Miniature Flyback Transformers for PoE
• Space efficient size: 16.5 mm square less than 7.5 mm tall
• Operates at 250 kHz with 36 – 72 Volts input
• 1500 Vrms isolation between the primary and the secondary
Designer’s Kit C382
contains two 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
2.6 – 2.9 g
Ambient temperature
–40°C to +125°C
Storage temperature
Component: –40°C to +125°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
Packaging
400 per 13″ reel Plastic tape: 32 mm wide,
0.4 mm thick, 20 mm pocket spacing, 7.69 mm pocket depth
PCB washing
Only pure water or alcohol recommended
Inductance Inductance
Leakage
DCR max (Ohms)
4
inductance
5
Turns ratio
6
Part
Power
at 0 A
2
at
Ipk
3
number
1
(W)
±10% (µH)
min (µH)
pri
sec
bias max (µH)
pri/sec pri/bias
Continuous mode
8
POE60C-18L_
6
167.0
150.3
0.303 0.017 0.570
7.8
1 : 0.063 1 : 0.344
POE60C-25L_
6
177.0
159.3
0.353 0.027 0.660
7.0
1 : 0.083 1 : 0.333
POE60C-33L_
6
184.0
165.6
0.286 0.026 0.515
4.0
1 : 0.100 1 : 0.333
POE60C-50L_
6
193.0
173.7
0.344 0.043 0.660
8.0
1 : 0.143 1 : 0.343
POE60C-12L_
6
204.0
183.6
0.293 0.083 0.545
5.8
1 : 0.333 1 : 0.333
Discontinuous mode
POE60D-18L_
6
75.0
67.5
0.311 0.018 0.575
6.7
1 : 0.063 1 : 0.344
POE60D-25L_
6
80.0
72.0
0.219 0.017 0.388
5.0
1 : 0.083 1 : 0.333
POE60D-33L_
6
85.0
76.5
0.285 0.026 0.530
4.0
1 : 0.100 1 : 0.333
POE60D-50L_
6
90.0
81.0
0.271 0.033 0.529
3.1
1 : 0.143 1 : 0.357
POE60D-12L_
6
95.0
85.5
0.265 0.074 0.484
2.4
1 : 0.333 1 : 0.333
1. When ordering, please specify
packaging
code:
POE60D-12LD
Packaging: D
= 13″ machine-ready reel. EIA-481 embossed plastic tape (400 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, 0.5 Vrms.
3. Peak primary current drawn at minimum input voltage.
4. DCR for the primary and for the secondary are with the windings connected in parallel.
5. Leakage inductance is for the primary winding with the secondary winding shorted.
6. Turns ratios are with the primary and 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. Designed to remain in continuous mode operation at power levels of 3 Watts and above.
9. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
5
4
Ipk
3
(A)
Output
7
0.62 1.8 V, 3.3 A
0.60 2.5 V, 2.4 A
0.57 3.3 V, 1.8 A
0.55 5.0 V, 1.2 A
0.52 12.0 V, 0.5 A
1.0
1.8 V, 3.3 A
0.95 2.5 V, 2.4 A
0.90 3.3 V, 1.8 A
0.85 5.0 V, 1.2 A
0.80 12.0 V, 0.5 A
9
8
Secondary
10
11
Primary
2
3
1
Bias
6
Primary windings and secondary windings
to be connected in parallel on PC board.
Specifications subject to change without notice.
Please check our website for latest information.
Document 402-1
Revised 10/29/08
© Coilcraft, Inc. 2009
FPGA/CPLD
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