55505 Series - Flange Mount Geartooth Sensor

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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

A robust flange mount Hall effect sensor primarily used for geartooth sensing. Protected against severe and automotive environments. Capable of switching up to 27Vdc and 20mA. Available in 3-wire (voltage output) version. Its case design incorporates a brass mounting bush. Ideally suited for wheel, transmission and camshaft speed sensing, geartooth sensors, rotary encoders, industrial, commercial and automotive applications.


  • Ferrous target sensing
  • Protection against severe and automotive environments
  • Self-adjusting magnetic range
  • High-speed operation
  • Integral EMC, short-circuit and reverse voltage protection
  • On-board 10-bit A/D converter


  • No chopper delay
  • Immune to target run-out
  • Rotational alignment to target not critical


  • Wheel, transmission and camshaft speed sensing
  • Geartooth sensors
  • Rotary encoders
  • Industrial
  • Commercial
  • Automotive

Access specifications, certifications, check availability and order parts below

Catalog #Supply Voltage (V DC)Output TypeOutput HighOutput LowOperating TemperatureStockSamples
55505-004.75 to 24DigitalVDD-20.6V @ 20 mA-40° to 125°CCheckOrder

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pdficon Littelfuse Hall Effect Sensors 55505 Datasheet

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