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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



RoHS compliant

For more information and specification about the part.

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Count Unit price
1 $4.33
350 $3.71
700 $2.23
1400 $1.73
2800 $1.50
5000 $1.37

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

. in stock, ready to ship today.
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Typical Application

Works with Texas Instruments LM5015

Input Voltage Output 1 Power Fsw
Sec Aux
9 V 18 V 12 V , 0.33 A 10 V , 0.02 A 4 W 250 kHz


Electrical specifications at 25°C.

Part number 2
(Hover for schematics)
typ (µH) 3
DCR max (mΩ) 4 Leakage
max (µH) 5
Turns Ratio 6 Isolation
Voltage (Vrms) 7
Pri Sec Aux Pri : Sec : Aux
FCT1-120K2SL_ 120 48 420 705 0.170 1 : 3 : 2.8 1500
  1. Output is with the secondary windings connected in parallel. Auxiliary winding output is 10 V, 20 mA.
  2. When ordering, please specify packaging code: e.g. FCT1-150K2SLD
  3. Inductance is measured at 250 kHz, 0.2 Vrms, 0 Adc.
  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. 1500 Vrms primary to secondary isolation.


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


  • D = 13″ machine ready reel. EIA-481 embossed plastic tape (350 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • B = Less than full reel. 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.
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):



Secondary winding 7 – 6 not used on
FCT1-120K2SL and FCT1-150K2SL.
For other parts, secondary windings
to be connected in parallel on PC board.

Physical characteristics



Tape and Reel specification


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_c.gif
350 330 100 13 38,4 32,4 32 20 4 2 9,16 0,42

General specification

Core Material:
2.0 – 2.1g
350 per 13″ reel Plastic tape: 32 mm wide, 0.42 mm thick, 20 mm pocket spacing, 9.16 mm pocket depth


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. More info.

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