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FCT1-xxM22SL Forward Mode Transformers

for 25 Watt PoE Applications

RoHS compliant
  • Designed for forward topology operating at 250 kHz; Input voltage range: 33 – 57 V
  • Three versions for 3.3, 5.0 and 12 Volt output
  • Bias winding output: 12 V, 20 mA
Buy Now:
Count Unit price
1 $3.28
175 $2.63
700 $2.28
1400 $1.99
2800 $1.71
5000 $1.56

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

. in stock, ready to ship today.
Request a Sample:

Specifications

Electrical specifications at 25°C.

Part number 1 Power (W) Input Voltage (V) Inductance
min (µH) 2
DCR max (mΩ) 4 Leakage
Inductance
max (µH) 5
Turns Ratio 6 Frequency (kHz) Isolation
Voltage (Vrms)
Secondary
Output (V, A) 7
Pri Sec Aux Pri : Sec : Aux
FCT1-120M22SL_ 25 33 57 90 150 62.5 352 0.725 1 : 0.53 : 0.53 250 1500 12 V , 2 A
FCT1-33M22SL_ 25 33 57 90 115 8.0 347 1.440 1 : 0.16 : 0.63 250 1500 3.3 V , 7.2 A
FCT1-50M22SL_ 25 33 57 90 144 18.0 298 0.880 1 : 0.25 : 0.53 250 1500 5 V , 4.8 A
Notes
  1. When ordering, please specify a packaging code: FCT1-50M22SLD
  2. Inductance is measured at 250 kHz, 0.1 Vrms, 0 Adc.
  3. 1500 Vrms isolation from primary and bias to secondary.
  4. DCR for the secondary is measured with the windings connected in parallel.
  5. Leakage inductance is for the primary and is measured with the secondary shorted.
  6. Turns ratio is with the secondary windings connected in parallel.
  7. Output is with the secondary windings connected in parallel. Bias winding output is 12 V, 20 mA.

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 (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):
26,315,789 hours / 38 per billion hours

Schematics

fct1xxm22sls.gif

Secondary windings to be connected
in parallel on the PC board.

Physical characteristics

fct1xxm22sld.gif


dims_inches_mm-(5).gif

Tape and Reel specification

tapereel_pl-(38).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.gif
175 330 100 13 38,4 32,4 32 28 4 2 12,93 0,5

General specification

Core Material:
Ferrite
Weight:
6.5 – 6.7 g
Packaging:
175 per 13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 28 mm pocket spacing, 12.93 mm pocket depth

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 with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf.