SDTR1103 SDTR1103 SMD Drop Resistant Transponder Coil (2.38mH - 9mH) 

SDTR1103 SMD Drop Resistant Transponder Coil (2.38mH - 9mH)

This inductor is the best solution when high electrical and mechanical performance is needed.

             

  • High stability in temperature. (-40ºC to +125ºC for TPMS applications no coated version (-40ºC to +85ºC for Keyless Entry Systems)
  • High drop test resistance (more than 500 times x 1 meter).
  • High sensitivity.
  • Epoxy coated. High reliability with pick & place machines warranted.
  • This component is also functional to 20kHz and 134kHz 

              

Applications: 

  • Inmobilizers.
  • Keyless entry Systems.
  • Industrial applications.
  • Access control.

 

The specification chart is a reference guide for the most common required values at working frequencies of 125 kHz. Any other inductance value at LF or tighter tolerances can be provided. Please contact our sales deparment for any inquiry.

L (mH)ToleranceQ MinFrequency (kHz)Cres (pF)SRF (kHz) MinDCR (Ω) MaxSensitivity (mVpp/App/m) MinLength (mm)Width (mm)Height (mm)
SDTR1103-0019J 0.19 ±5% 17.1 125 8532 2000 8 10 11.8 3.6 2.5
SDTR1103-0238J 2.38 ±5% 34.2 125 680 500 39 30 11.8 3.6 2.5
SDTR1103-0266J 2.66 ±5% 40.5 125 609 500 33 40 11.8 3.6 2.5
SDTR1103-0477J 4.77 ±5% 30 125 340 350 63.8 60 11.8 3.6 2.5
SDTR1103-0491J 4.91 ±5% 27.9 125 330 380 85 50 11.8 3.6 2.5
SDTR1103-0720J 7.20 ±5% 29.7 125 220 300 103 70 11.8 3.6 2.5
SDTR1103-0900J 9.00 ±5% 30.6 125 180 300 115 80 11.8 3.6 2.5

Reel dimensions Tape dimensions PARTS/REEL
A B C D E W  P P0   P1  D  
330 50 13 30.4 24.4 24 8 4 2 2.7 0.3 3000

 

All dimensions in mm.

 

3D 2D
SDTR1103

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SDTR1103 Pad layout

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 Rmax: Measured 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.

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