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
• 1500Vrms,oneminuteisolationbetweenprimaryandsecondary
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.
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)
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 Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Inductance Inductance
Leakage
DCR max (Ohms)4
Turns ratio6
pri/sec pri/bias (A)
Part
Power
(W)
at0A2
at Ipk3
inductance5
Ipk3
number1
10ꢀ(µH)
min (µH)
pri
sec
bias max (µH)
Output7
Continuous mode8
POE60C-18L_
POE60C-25L_
POE60C-33L_
POE60C-50L_
POE60C-12L_
6
6
6
6
6
167.0
177.0
184.0
193.0
204.0
150.3
159.3
165.6
173.7
183.6
0.303 0.017 0.570
0.353 0.027 0.660
0.286 0.026 0.515
0.344 0.043 0.660
0.293 0.083 0.545
7.8
7.0
4.0
8.0
5.8
1 : 0.063 1 : 0.344 0.62 1.8 V, 3.3 A
1 : 0.083 1 : 0.333 0.60 2.5 V, 2.4 A
1 : 0.100 1 : 0.333 0.57 3.3 V, 1.8 A
1 : 0.143 1 : 0.343 0.55 5.0 V, 1.2 A
1 : 0.333 1 : 0.333 0.52 12.0 V, 0.5 A
Discontinuous mode
POE60D-18L_
POE60D-25L_
POE60D-33L_
POE60D-50L_
POE60D-12L_
6
6
6
6
6
75.0
80.0
85.0
90.0
95.0
67.5
72.0
76.5
81.0
85.5
0.311 0.018 0.575
0.219 0.018 0.388
0.285 0.026 0.530
0.271 0.033 0.529
0.265 0.074 0.484
6.7
5.0
4.0
3.1
2.4
1 : 0.063 1 : 0.344 1.0
1.8 V, 3.3 A
1 : 0.083 1 : 0.333 0.95 2.5 V, 2.4 A
1 : 0.100 1 : 0.333 0.90 3.3 V, 1.8 A
1 : 0.143 1 : 0.357 0.85 5.0 V, 1.2 A
1 : 0.333 1 : 0.333 0.80 12.0 V, 0.5 A
1. When ordering, please specify packaging code:
POE60D-12LD
5
4
9
8
Secondary
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic tape (400 parts per full reel).
Quantities less than full reel available: in tape (not machine ready) or with leader
and trailer ($25 charge).
Primary
2
3
10
11
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is
eliminating the need for multiple packaging codes. When ordering, simply change
the last letter of your part number from B to D.
1
Bias
6
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.
Primary windings and secondary windings
to be connected in parallel on PC board.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Document 402-1 Revised 05/05/22
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2022
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.
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