55320 Series - Flat Pack Linear Hall Effect Sensor

Series: 55320
Availability: Phase Out/Obsolete

Contact the factory.

Questions? Contact Littelfuse Support
Roll Over to Zoom
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 55320 series of linear Hall effect sensors provide linear position measurement for a range of up to 30mm. This unit is programmable for very precise ratio-metric absolute output applications.

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 adaptable to custom magnetic actuators.

The 55320 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 125°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.

The sensor functions best with the supplied 57320 actuator.


  • 30mm linear sensing range
  • Absolute 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
  • Adaptable to custom magnetic acutators


  • Hydraulic cylinder position
  • Transmission shift position
  • Valve position
  • Seat position
  • Automation and controls

Access specifications, certifications, check availability and order parts below

Catalog #Supply Voltage (V DC)Supply Current (mA)Output TypeOutput LowOperating TemperatureSamples
Obsolete: 2023 -01-19
4.5 to 5.516Analog Voltage or PWM-8 to +8 mA; 0.5 to 4.5 V-40° to 125°COrder

pdficon Flow Sensing in Tankless Water Heaters Application Note

Reed switches and sensors are highly effective solutions for flow sensing applications that can be used for detecting the presence of fluid flow in a system or even measure the rate of fluid flow.

pdficon Position and Level Sensing in Washing Machines

A most integral appliance in any home is a washing machine. Washing machines have helped made the chore of cleaning clothes quite effortless.

pdficon Rice Cooker Lid Lock Application Note

The position sensing lid lock ensures that the lid is securely locked in place.

pdf icon Sensing Products Selection Guide

This guide provides an introduction to magnetic sensing and options for value-added custom design packages.

pdficon Littelfuse Hall Effect Sensors 55320 datasheet

To request product environmental information, please complete the Product Environmental Information Request Form.