POE60C-18L Datasheet, PDF (1/2 Pages) Coilcraft lnc. – Miniature Flyback Transformers for PoE

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
Part
number¹
Inductance Inductance
Leakage
Power at 0 A²
at Ipk³
DCR max (Ohms)⁴ _inductance5 Turns ratio⁶
(W) ±10% (µH) min (µH) pri sec bias max (µH) pri/sec pri/bias
Continuous mode⁸
POE60C-18L_ 6
POE60C-25L_ 6
POE60C-33L_ 6
POE60C-50L_ 6
POE60C-12L_ 6
167.0
177.0
184.0
193.0
204.0
150.3
159.3
165.6
173.7
183.6
0.303
0.353
0.286
0.344
0.293
0.017
0.027
0.026
0.043
0.083
0.570
0.660
0.515
0.660
0.545
7.8 1 : 0.063 1 : 0.344
7.0 1 : 0.083 1 : 0.333
4.0 1 : 0.100 1 : 0.333
8.0 1 : 0.143 1 : 0.343
5.8 1 : 0.333 1 : 0.333
Discontinuous mode
POE60D-18L_ 6
75.0
POE60D-25L_ 6
80.0
POE60D-33L_ 6
85.0
POE60D-50L_ 6
90.0
POE60D-12L_ 6
95.0
67.5 0.311 0.018 0.575
72.0 0.219 0.017 0.388
76.5 0.285 0.026 0.530
81.0 0.271 0.033 0.529
85.5 0.265 0.074 0.484
6.7 1 : 0.063 1 : 0.344
5.0 1 : 0.083 1 : 0.333
4.0 1 : 0.100 1 : 0.333
3.1 1 : 0.143 1 : 0.357
2.4 1 : 0.333 1 : 0.333
Ipk³
(A)
Output⁷
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
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
9
4
8
Primary
Secondary
2
10
3
11
1
Bias
6
Primary windings and secondary windings
to be connected in parallel on PC board.
© Coilcraft, Inc. 2009
Specifications subject to change without notice.
Please check our website for latest information.
Document 402-1 Revised 10/29/08