SDTR1103 SMD Drop Resistant Transponder Coil (2.38mH - 9mH) Agrandir l'image

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

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The SDTR1103 Series of Surface Mount ferrite wound inductor is the best solution when high electrical and mechanical performance is needed. Its length and cross sectional area are optimized to achieve the maximum sensitivity in the coil axis. The construction of the coil offer high mechanical performance due to the plastic base and ferrite laminate.

High stability in temperature, ranges :

  • ΔLs/Ls (-40ºC ⇒ 25ºC): -2% max
  • ΔLs/Ls (+25ºC ⇒ +85ºC): +0.5% max
  • Typical temperature coefficient ΔLs/ºC: +200±50ppm/ºC
  • -40ºC to +125ºC for TPMS applications
  • -40ºC to +85ºC for Keyless Entry Systems


  • High sensitivity. 75 mVpp/App/m for 7.2 mH (@125 kHz). 135 mVpp/App/m for 16.2 mH (@125 kHz)
  • Mechanical performance. Drop test: more than 500 times x 1 meter
  • Epoxy coated. Moulded with epoxy protection, 5 sides protected , high reliability with Pick&Place machines warranted
  • Taped & Reel: 3000pcs / reel
  • Inductance values from 340μH to 16.2mH for 125KHz operations (contact PREMO RFID for inductance range for other working frequencies such as 20KHz and 40KHz)

Applications :

  • Inmobilizers
  • Tire pressure monitoring systems
  • 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.
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