55300 Series - Flat Pack Rotary Hall Effect Sensor

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Disclaimer Notice

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.

The Littelfuse 55300 series of rotary absolute position sensors provide angular measurement between 0 and 360 degrees. This unit is programmable for very precise ratio-metric absolute output applications. This unit is activated by a remote magnet, thus allowing a larger stack up of mechanical tolerances that are not feasible with the integral magnet version 55250.

The internal design of the sensor uses non-contact magnetic Hall effect technology with options of analog or pulse-width modulated (PWM) output signals. This sensor is immune to the performance limitations of the wiper-based products that are associated with mechanical wear or contamination.

The 55300 package design commonly finds applications within all types of vehicle and industrial segments. Designed to operate in the harsh environments of the industrial and commercial vehicle, the sensor has an operating temperature range between -40°C and 105°C. This unit incorporates automotive grade EMI/EMC and reverse battery polarity protection, as well as commercial grade 20 AWG-TXL automotive wire and the option of a Molex-type sealed connector.


  • 360° angular sensing range
  • Absolute rotary position sensor
  • Analog output
  • Non-contact measuring
  • Integral EMC protection


  • Long life with no wear of components
  • High speed
  • Unaffected by harsh environments
  • Compact, robust package


  • Absolute rotary encoders
  • Pedal position
  • Shaft position
  • Lever position
  • Float level sensing
  • Non-contact potentiometer

Access specifications, certifications, check availability and order parts below

Catalog #Supply Voltage (V DC)Supply Current (mA)Output TypeOutput HighOutput LowOperating TemperatureStockSamples
55300-004.5 to 5.516Analog Voltage or PWM4.5 V0.5 V-40° to 105°CCheckOrder

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