littelfuse.com© 2016 Littelfuse Revised: 09/09/16
Specifications are subject to change without notice.
55300 Flat Pack Rotary Hall Sensor
Description
The Littelfuse 55300 Series of rotary absolute position sensors provide angular
measurement between 0 and 360 degrees. 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 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 and 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.
Hall Effect Sensors
Features
• 360° Angular sensing range
• Absolute rotary position sensing
• Analog output
• Non-contact measuring
• EMC protection
Benefits
• Long life - no wear components
• High speed
• Unaffected by harsh environments
• Compact robust package
Applications
• Absolute rotary encoding
• Pedal position
• Shaft position
• Lever position
• Float level sensing
• Non-contact potentiometer
Dimensions
Dimensions in mm
Rotary Hall Sensor > 55300
3.18±0.30
20.52±0.30
11.23±0.30
10.24±0.30
Hall Effect
Sensor Location
90º
270º
0º 360º
180º
CW
Actuator Magnet Rotation
Actuator Magnet
57300-000 (Supplied with Sensor)
10.92±0.30
20.40±0.30
6.35±0.30
3.68±0.50
8.38±0.30
N
S
3.43±0.30
5.33±0.30
Radial Alignment
= ±1.0 Max
2.79±0.30
