Inductor Finders Power  |   RF
Power Magnetics Tools
RF Inductor Tools
New! CM Choke Finder
New! LC Filter Designer
IC / Inductor Match Tool
Application Notes
Other Resources
Designer's Kits

Miniature Flyback Transformers
for Power over Ethernet

  • Developed for Powered Devices (PD) in 6 Watt IEEE 802.3af compliant PoE applications
  • 36 – 72 V input
  • 1500 Vrms winding to winding isolation
  • Versions for continuous and discontinuous modes of operation
  • 12 V, 20 mA bias winding output
  • Custom versions available
  • RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations
  • Samples of all values are available in Coilcraft Designer's Kit C382

SPECIFICATIONS



Part number1
Click for
samples
L at 0 A2
±10%
(µH)
L at Ipk3
±10%
(µH)
DCR max (Ohms)4 Leakage
L max5
(µH)
Turns ratio Ipk3
(A)
Secondary
output6
pri sec bias pri/sec pri/bias

Continuous mode7

POE60C-18L_ 167.0 150.3 0.303 0.017 0.570 7.8 : 0.063 : 0.344 0.62 1.8 V, 3.3 A
POE60C-25L_ 177.0 159.3 0.353 0.027 0.660 7.0 : 0.083 : 0.333 0.60 2.5 V, 2.4 A
POE60C-33L_ 184.0 165.6 0.286 0.026 0.515 4.0 : 0.100 : 0.333 0.57 3.3 V, 1.8 A
POE60C-50L_ 193.0 173.7 0.344 0.043 0.660 8.0 : 0.143 : 0.343 0.55 5.0 V, 1.2 A
POE60C-12L_ 204.0 183.6 0.293 0.083 0.545 5.8 : 0.333 : 0.333  0.52 12.0 V, 0.5 A

Discontinuous mode

POE60D-18L_ 75.0 67.5 0.311 0.018 0.575 6.7 : 0.063 : 0.344 1.0 1.8 V, 3.3 A
POE60D-25L_ 80.0 72.0 0.219 0.018 0.388 5.0 : 0.083 : 0.333 0.95 2.5 V, 2.4 A
POE60D-33L_ 85.0 76.5 0.285 0.026 0.530 4.0 : 0.100 : 0.333  0.90 3.3 V, 1.8 A
POE60D-50L_ 90.0 81.0 0.271 0.033 0.529 3.1 : 0.143 : 0.357 0.85 5.0 V, 1.2 A
POE60D-12L_ 95.0 85.5 0.265 0.074 0.484 2.4 : 0.333 : 0.333 0.80 12.0 V, 0.5 A
1 When ordering, please specify packaging code: e.g. 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, 0.1 Vrms, 0 Adc
3 Peak primary current drawn at minimum input voltage.
4 DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
5 Leakage inductance is for the primary winding with the secondary winding shorted.
6 Output of the secondary is with the windings connected in parallel. Bias winding output is 12 V, 0.2 A.
7 Designed to remain in continuous mode operation at power levels of 3 Watts and above.
8 Ambient temperature range: −40°C to +125°C
9 Storage temperature range: Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
10 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
11 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

Home | Design Tools | Samples | Kits | Price + Stock | Sales | Support | Jobs | Index
Your comments and suggestions are welcome. Contact webmaster@coilcraft.com
Copyright © 2017, Coilcraft, Inc.   Privacy policy
Updated: October 26, 2016