3D isotropic SMD Coil for Transponder - 20mH - 3DC11LP-A-2000J

3D isotropic SMD Coil for Transponder - 20mH - 3DC11LP-A-2000J

125kHz / 20mH / 13x11.6x3.15mm

3DC11LP-A-2000J is customizable.

Suitable for: automotive passive keyless entry systems among others.
Very good electrical performance.
High stability in temperature (-40 ºC to +85 ºC).
Designs at lower frequencies like 20 kHz and 40 kHz show a very good electrical performance as well.
High sensitivity values.
RoHS Compliant

insert_drive_fileData sheet (PDF)
Freq. (kHz)20
Lx (mH)20
Ly (mH)20
Lz (mH)20
Qx Min5
Qy Min5
Qz Min5
SRFx (kHz) Min120
SRFy (kHz) Min120
SRFz (kHz) Min350
DCRx (Ω) Max495
DCRz (Ω) Max385
DCRy (Ω) Max495
Sensitivity x (mV/A/m) Min22
Sensitivity y (mV/A/m) Min22
Sensitivity z (mVpp/App/m) Min22
Cres (pF)3166
Height (mm)3.15
Length (mm)13.0
Width (mm)11.6

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Recommended reflow profile.


Reflow soldering, vapour-phase soldering. A maximum soldering temperature of 260ºC during 10 s should not be exceed for (see recommended soldering profile with maximum and minimum temperature-time).



The reflow condition recommended is according to the machine used by our company. Big differences will arise as a result of the type of machine, reflow conditions, method, etc used.

  1. Rated Inductance LR: Measured at frequency fL, with impedance analyser WK3260 with 3MHz installed.
  2. Q Factor Qmin: Measured at frequency fL, with impedance analyser WK3260 with 3MHz installed.
  3. Self-resonance frequency fmin Measured at frequency fL, with impedance analyser WK3260 with 3MHz installed.
  4. DC resistance RmaxMeasured at 20ºC ambient temperature, measuring current <IR.
  5. Sensitivity: Measured with Helmholtz coils 5 turns, 160mm ∅, + waveform generator Agilent 33120A + oscilloscope Agilent 54622A. Contact PREMO RFID for complete measurement specification.


Reel dimensionsTape dimensionsPARTS/REEL


All dimensions in mm.


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L (mH) MinDCR (Ω) MaxFreq. (kHz)Cres (pF)Q x,y,z MinHeight (mm)Width (mm)Length (mm)SRF (kHz) MinSensitivity (mV/uT) min