Position Sensor

Our offered Product range includes Flat Pack Rotary Hall Effect Sensor, Rotary Absolute Position Sensor and Flange Mount Hall Effect Sensor.

Flat Pack Rotary Hall Effect Sensor

Series 553004
Catalog 55300-00
Supply Current (mA 16
Output High 4.5 V
Output Low 0.5 V

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 -40C and 105C. This unit incorporates automotive grade EMIEMC 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 rangeAbsolute rotary position sensorAnalog outputNon-contact measuringIntegral EMC protectionLong life with no wear of componentsHigh speedUnaffected by harsh environmentsCompact, robust packageApplications: Absolute rotary encodersPedal positionShaft positionLever positionFloat level sensingNon-contact potentiometer

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Rotary Absolute Position Sensor

The Littelfuse 55250 series of rotary absolute position sensors provide angular measurement between 0 and 105 degrees with the option of a full 360-degree movement. The internal design of the sensor uses non-contact magnetic Hall effect technology as opposed to more common wiper-based resistive products. This unit is immune to the performance limitations of the wiper-based products that are associated with mechanical wear or contamination.The 55250's 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 -40C and 125C. This unit incorporates automotive grade EMIEMC and reverse polarity protection and mates with a Delphi-type sealed connector. Features: 105 angular sensing rangeAbsolute rotary position sensorAnalog outputNon-contact measuringVibration 50g max. @ 50 to 2, 000HzIntegral EMC protectionIntegral connectorBenefits: Long life with no wear of componentsHigh speedUnaffected by harsh environmentsSmall, robust packageApplications: Pedal position sensing, including automotive applicationsAbsolute rotary encodersShaft positionLever positionFloat level sensingNon-contact potentiometer

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Flange Mount Hall Effect Sensor

Series 55140
Catalog 55140-2H
Min Operating Temp °C -40

A small flange mount Hall effect sensor occupying only 3.22cm2 (0.500in2) board space with a choice of digital or programmable analog outputs. Available in 3-wire (voltage output) or 2-wire (current output) versions. Its case design enables screw or adhesive mounting. Capable of switching up to 28Vdc and 20mA. Available with a range of sensitivity, cable length and connector options. Ideally suited for position and limit sensing, rotation and flow measurement, commutation of brushless DC motors, angular sensing and magnetic encoding.Features: Magnetically-operated position sensorDigital or programmable analog types availableMedium, high or programmable sensitivity options availableThree-wire (voltage output) or two-wire (current output) versions availableVibration 50g max. @ 50 to 2, 000HzShock 150g max. @ 11ms 12 sine waveEMC compliance to DIN 40839 (consult Littelfuse)Integral reverseover-voltage protectionBuilt-in temperature compensation.High switching speed up to 10kHzLong life, up to 20 billion operationsUnaffected by harsh environmentsOperates in static or dynamic magnetic fieldAvailable with a selection of cable length and connector optionsApplications: Position and limit switchingRPM measurementFlow meteringCommutation of brushless DC motorsAngle sensingMagnetic encoders

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