littelfuse.com© 2015 Littelfuse Revised: 10/14/15
Specifications are subject to change without notice.
55075 Stainless Steel M12 Geartooth Speed Sensor
Description
The 55075 is a robust stainless steel hall effect barrel sensor with an M12 x
1mm pitch thread, 46mm (1.810”) long primarily for geartooth speed sensing.
It protects against severe and automotive environments and is capable of
switching up to 27Vdc and 20mA. It is available as three-wire (voltage output)
version with a range of sensitivity, cable length and connector options.It is
ideally suited to wheel, transmission and cam shaft speed sensing, geartooth
sensor, rotary encoders, industrial, commercial, and automotive applications.
Hall Effect Sensors
Features
• Ferrous target geartooth speed
sensor
• Stainless steel M12 threaded barrel
• Electronic protection against severe
and automotive environments
• Self adjusting magnetic range
• Three-wire (voltage output)
• EMC Protection (Consult Littelfuse)
• Short circuit/reverse voltage
protection
Benefits
• Long life, up to 20 billion operations
• High speed operation
• No chopper delay
• Unaffected by harsh environments
• Rotary orientation not critical
• On-chip 10-bit A/D converter
• Customer selection of cable length
and connector type
Applications
• Geartooth sensor
• Camshaft sensor
• Linear encoder
• Rotary encoder
Dimensions
Dimensions in mm (inch)
APPLICATION EXAMPLE - Geartooth Sensor
Block Diagram
Barrel Sensor > 55075
36.0
(1.417)
46.0
(1.811)
Encapsulation excluded
300
(11.81)
30.0 NOM.
(1.181)
6.35 NOM.
(.250)
M12x1mm PITCH
VDD
Pin 1
(Red)
Hall
Plate
Switch Output
Clock
Comparator
R1
C1
Rpu
GND
Pin 2
(Black)
OUT
Pin 3
(Blue)
Typical Output
1.5mm (.059) Typica
