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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

For more information and specification about the part.

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Count Unit price
1 $1.87
200 $1.59
600 $1.39
1200 $1.09
3000 $0.96
6000 $0.87

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

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Electrical specifications at 25°C.

Part number 1
(Hover for schematics)
min (mH) 2
DCR max (Ω) Turns Ratio Volt-time
product (V-µs) 3
Frequency (kHz) 4 Current (A) 5 Terminating
resistance RT (Ω) 6
Voltage (Vrms) 7
Pri Sec Pri : Sec
CST7030-100L_ 1.330 0.0015 10.7 1 : 100 32 16 >1000 20.0 5.0 500
  1. When ordering, please specify packaging code: e.g.CST7030-150LC
  2. Inductance measured between secondary pins at 100 kHz, 0.1 Vrms, 0 Adc.
  3. Volt-time product is for the secondary, between pin 1 and 2.
  4. For specific questions regarding frequency range, please contact us at [email protected].
  5. Primary current of 20 A causes less than 25°C temperature rise from 25°C ambient. Higher current causes a greater temperature rise (see Temperature Rise vs Current curve).
  6. Terminating resistance (RT) value is based on 1 Volt output with 20 Amps flowing through the primary. Varying terminating resistance increases or decreases output Voltage/Ampere according to the following equation:
    RT (Ohms) = Vout × Nsec / Iin.
  7. 500 Vrms, 1 minute isolation (hipot) winding to winding.


  • RoHS compliant tin-silver-copper over tin over nickel over copper


  • C = 7″ machine-ready reel. EIA-481 embossed plastic tape (600 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. 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 C.
  • D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2500 parts per full reel).
RoHS compliant
Ambient temperature range:
–40°C to +125°C
Storage temperature range:
Component: –40°C to +125°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
7" (178 mm) 13" (330 mm) A B C D E W P Po P1 H T cst7030orientation-(1).gif
600 2500* 178/330 60/100 13 38,4 32,4 16 20 4 2 10,6 0.35

General specification

Core Material:
0.16 g
600/7″ reel; 2500/13″ reel Plastic tape: 16 mm wide, 0.35 mm thick, 8 mm pocket spacing, 3.0 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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