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

Forward Mode Transformers
for 8 Watt Applications

  • Developed for Texas Instruments LM5015 Two-Switch Forward Regulator
  • Designed for forward topology operating at 250 kHz; Input voltage range: 18 – 36 V
  • Five versions for 3.3, 5, 9, 12 and 15 Volt output
  • 1500 Vrms primary to secondary isolation
  • Auxiliary winding output: 10 V, 20 mA
  • For 15 Watt Applications, the FCT1-xxxM2SL series is recommended by NSC
  • RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations

SPECIFICATIONS


Part number1
Click to get parts
Inductance2
nom (µH)
DCR max (Ohms)3 Leakage
inductance4
max (µH)
Turns ratio5 Output6
pri sec aux pri : sec pri : aux
FCT1-33L2SL_ 324 65 22.5 460 0.530 1 : 0.50 1 : 1.39 3.3 V, 2.4 A
FCT1-50L2SL_ 324 65 31 490 0.585 1 : 0.72 1 : 1.39 5.0 V, 1.6 A
FCT1-90L2SL_ 324 65 105 490 0.570 1 : 1.17 1 : 1.39 9.0 V, 0.89 A
FCT1-120L2SL_ 324 65 150 535 0.525 1 : 1.56 1 : 1.39 12 V, 0.67 A
FCT1-150L2SL_ 324 65 223 470 0.600 1 : 1.89 1 : 1.39 15 V, 0.53 A
1 When ordering, please specify packaging code: e.g. FCT1-150L2SLD
  Packaging: D = 13" machine-ready reel
EIA 481 embossed plastic tape (200 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 measured at 250 kHz, 0.3 Vrms, 0 Adc.
3 DCR for the secondary is measured with the windings connected in parallel. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 Leakage inductance is for the primary winding and is measured with the secondary windings shorted.
5 Turns ratio for secondary is with the windings connected in parallel. 
6 Output of the secondary is with the windings connected in parallel. Auxiliary winding output is 10 V, 20 mA.
7 Ambient temperature range: −40°C to +85°C
8 Storage temperature range: Component: −40°C to +85°C
Tape and reel packaging: −40°C to +80°C
9 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.
10 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 | Site Map
Your comments and suggestions are welcome. Contact webmaster@coilcraft.com
Copyright © 2017, Coilcraft, Inc.   Privacy policy
Updated: October 30, 2017