Hall Effect Sensors
Miniature Vane > 55085
55085 With Integral Actuator Magnet
Description
The 55085 is a miniature hall effect sensor with integral actuator magnet.
Actuation occurs when a suitable vane passes through the slot between the
magnet and hall element. It is capable of switching up to 28Vdc and 20mA and
ideally suited to position and limit sensing, security, linear actuator, industrial
process control, and shaft rotation applications.
Features
• Sensor and magnet contained in
a single housing
• Sensor operates when ferrous vane
passes through slot
• Three-pin leadout integral to sensor
• Reverse/Over voltage protection
• Built in temperature compensation
Agency Approvals
Agency
Agency File Number
E61760 (TBD)
Benefits
• High switching speed up to 10kHz
• Long life - up to 20 billion
operations
• Unaffected by harsh environments
• Operates in static or dynamic
magnetic field
• Small package size
• Simple installation
Dimensions
Dimensions in mm (inch)
28.00
(1.102)
9.00
(.354)
3.25 TYP
.
Ø(.128)
22.00
(.866)
3.60
(.148)
12.00
(.472)
8.50 NOM.
(.335)
321
Pin Out
5.08
(.200)
2.50
(.098) 13.50
(.531)
Applications
• Position and limit sensing
• Shaft rotation sensing
• Security systems
• Linear actuators
• Angle sensing
• Magnetic encoders
Activation
Dimensions in mm (inch)
7.00 (2.76)
7
.70
(.303)
Note:
1. Activate Distance is approximate using a 2.54mm (.100) thick ferrous vane as illustrated.
Block Diagram
VDD
Pin 1
Cn
GND
Pin 2
Notes:
1. Add caoacitor Cn as shown, close to the sensor, for transient suppression if required.
2. Add resistor Rpu as shown for sinking output.
Additional Information
VDD
Hall
Plate
Switch
Comparator
Clock
Output
Rpu
Datasheet
Resources
Samples
OUT
Pin 3
© 2015 Littelfuse
Specifications are subject to change without notice.
littelfuse.com
Hall Effect Sensors
Miniature Vane > 55085
55085 With Integral Actuator Magnet
Electrical Ratings
Hall Type
Absolute Range
Recommended
Overvoltage Protection
Vdc
Vdc
Vdc - max.
Vdc - min.
Vdc - max.
Digital Switch
3-Wire (Voltage Output)
1
Supply Voltage
-15 to +28
+3.8 to +24
32
VDD - 2
(sinking output with internal pull-up resistor)
0.4 @20mA
Output High Voltage
Output Low Voltage
Output Current
(continuously on)
Current Consumption
Switching Speed
Temperature
Note:
1. As long as Tj (Junction Temperature) is not exceeded.
mA - max.
mA - min.
mA - max.
KHz-max.
Operating
Storage
°C
°C
20
1
10.5
10
-40 to +100
-65 to +105
© 2015 Littelfuse
Specifications are subject to change without notice.
littelfuse.com