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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 AEC-Q flag

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Count Unit price
1 $2.01
300 $1.71
600 $1.51
1200 $1.30
2400 $1.11
4800 $1.02

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Electrical specifications at 25°C.

Part number 1
(Hover for schematics)
at 0A (mH) 2
(Tolerance: ±30%)
DCR max (Ω) 3 Turns Ratio Volt-time
product (V-µs) 4
Frequency (kHz) 5 Current (A) 6 Terminating
resistance RT (Ω) 7
Voltage (Vrms) 8
Pri Sec Pri : Sec
CST2010-200L_ 34.00 0.00036 4.06 1 : 200 508 1 >1000 47 5.0 1500
  1. When ordering, please specify packaging code: e.g.CST2010-200LD
  2. Inductance measured between secondary pins at 1 kHz, 0.1 Vrms, 0 Adc.
  3. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  4. Volt-time product is for the secondary, between pin 2 and 4.
  5. For specific questions regarding frequency range, please contact us at [email protected].
  6. Primary current of 47 A causes approximately 40°C temperature rise from 25°C ambient. Higher current causes a greater temperature rise (see Temperature Rise vs Current curve).
  7. Terminating resistance (RT) value is based on 1 Volt output with 40 Amps flowing through the primary. Varying terminating resistance increases or decreases output Voltage/Ampere according to the following equation:
    R= Vout × Nsec / Iin.
  8. 1500 Vrms, one minute isolation (hipot) winding to winding.


  • RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze (pins 1-10); Matte tin over nickel over copper (pins 11-12).


  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape (300 parts per full reel).
  • B = Less than full reel. In an effort 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 +125°C
Storage temperature range:
Component: –40°C to +165°C.
Tape and reel Packaging: –40°C to +80°C
Maximum part temperature:
+165°C (ambient + temp rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Temperature vs Current



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 cst2010orientation.gif
300 330 100 13 38,4 32,4 32 20 4 2 10,6 0.50

General specification

Core Material:
4.13 g
300/13″ reel; Plastic tape: 32 mm wide, 0.5 mm thick, 20 mm pocket spacing, 10.6 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 to MIL-STD-202 Method 215 plus an additional aqueous wash. More Info.

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