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Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

POExxP Flyback Transformers

for Power over Ethernet

RoHS compliant
  • Developed for Powered Devices (PD) in IEEE 802.3af compliant PoE applications
  • Designed to operate in continuous mode
  • 36 – 72 V input with versions for 3 Watt, 7 Watt and 13 Watt output
  • Bias winding output: 12 V, 20 mA
  • 250 kHz switching frequency
Buy Now:
Count Unit price
1 $2.81
350 $2.10
700 $1.35
1400 $1.11
2800 $0.95
5000 $0.87

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
Request a Sample:
Designer's Kit:
Kit Values Price
C395 9 (2 of each) $50.00

Specifications

Electrical specifications at 25°C.

Samples of parts in red are available in Coilcraft Designer's Kit C395

Part number 1 Power (W) Inductance
at 0A (µH) 2
(Tolerance: ±10%)
Inductance
min (µH)
DCR max (Ω) 3 Leakage
Inductance
max (µH) 4
Turns Ratio 5 Isolation
Voltage (Vrms) 6
Secondary
Output (V, A)
Pri Sec Bias Pri : Sec : Bias
POE30P-33L_ 3 310 279 @ 0.3 A 1.020 0.066 2.010 4.75 1 : 0.19 : 0.7 1500 3.3 V , 0.91 A
POE30P-50L_ 3 310 279 @ 0.3 A 1.020 0.118 2.010 4.50 1 : 0.28 : 0.7 1500 5 V , 0.6 A
POE30P-12L_ 3 310 279 @ 0.3 A 1.040 0.700 2.010 4.25 1 : 0.7 : 0.7 1500 12 V , 0.25 A
POE70P-33L_ 7 155 140 @ 0.65 A 0.414 0.036 0.822 4.00 1 : 0.19 : 0.667 1500 3.3 V , 2.12 A
POE70P-50L_ 7 155 140 @ 0.65 A 0.414 0.060 0.822 3.60 1 : 0.262 : 0.667 1500 5 V , 1.4 A
POE70P-12L_ 7 155 140 @ 0.65 A 0.414 0.343 0.822 3.25 1 : 0.667 : 0.667 1500 12 V , 0.6 A
POE13P-33L_ 13 127 114 @ 1 A 0.255 0.024 0.310 1.25 1 : 0.166 : 0.5 1500 3.3 V , 4 A
POE13P-50L_ 13 127 114 @ 1 A 0.222 0.039 0.348 0.95 1 : 0.25 : 0.5 1500 5 V , 2.6 A
POE13P-12L_ 13 127 114 @ 1 A 0.199 0.065 0.308 0.65 1 : 0.5 : 0.5 1500 12 V , 1.08 A
POE13P-19L_ 13 127 114 @ 1 A 0.290 0.066 0.355 0.80 1 : 0.567 : 0.5 1500 19.5 V , 0.67 A
POE13P-24L_ 13 127 114 @ 1 A 0.255 0.067 0.315 0.60 1 : 0.667 : 0.5 1500 24 V , 0.54 A
Notes
  1. When ordering, please specify packaging code: e.g. POE13P-12LD
  2. Inductance is for the primary, measured at 250 kHz, 0.1 Vrms, 0 Adc.
  3. DCR for the secondary is per winding, measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  4. Leakage inductance is measured between pins 3 and 4 with all other pins shorted.
  5. Turns ratio is with the secondary windings connected in parallel.
  6. 1500 Vrms, 1 minute isolation (hipot) from primary and bias to secondary.
    500 Vrms, 1 minute isolation between all other windings.

Termination:

  • RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations. Other terminations available at additional cost.

Packaging:

  • D = 13" machine-ready reel
    EIA 481 embossed plastic tape
    POE30P (350 parts per full reel); POE70P (200 parts per full reel);
    POE13P (175 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.
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
−40°C to +85°C
Storage temperature range:
Component: −40°C to +85°C
Tape and reel packaging: −40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Schematics

    POE13P                                      

poe_ep13s.gif                   

Secondary windings to be connected in parallel on PC board.
 


POE30P, POE70P

poe_ep10s.gif

Secondary windings to be connected in parallel on PC board.

Physical characteristics

POE30P

poe30pd.gif

 

POE70P
poe70pd-(1).gif

 


POE13P

poe13pd.gif




dims_inches_mm-(3).gif

Tape and Reel specification

tapereel_pl.gif



 
  Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
  13" (330 mm) A B C D E W P Po P1 H T part_or_f-(1).gif
POE30P 350 330 100 13 38,4 32,4 32 20 4 2 9,35 0,45
POE70P 200 330 100 13 38,4 32,4 32 24 4 2 11,2 0,5  
POE13P 175 330 100 13 38,4 32,4 32 28 4 2 12,93 0,5  

General specification

Core Material:
Ferrite
Weight:
2.05 g, 3.85 g, 6.15 g

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash.  More info.

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