littelfuse.com© 2019 Littelfuse Revised: 02/08/19
Specifications are subject to change without notice.
Hall Effect Sensors
Flange Mount > 55140
55140 Miniature Flange Mounting Sensor
Description
The 55140 is a small flange mounting hall effect sensor occupying only 3.22cm²
(0.500”² ) board space with a choice of digital, or programmable analogue
outputs. It is available as three-wire (voltage output) or two-wire (current output)
versions. Its case design enables screw or adhesive mounting and the sensor is
capable of switching up to 28Vdc and 20mA. It comes with a range of sensitivity,
cable length and connector options.
Features
• Magnetically operated position
sensor
• Digital,latching or programmable
analog types available
• Medium, high or programmable
sensitivities
• Three-wire (voltage output) or two-
wire (current output) versions
• Vibration 50g max. @ 50-2,000Hz
• Shock 150g max. @ 11ms ½ Sine
• EMC to DIN 40839 (Consult
Littelfuse)
• Reverse/Over voltage protection
• Built in temperature compensation
• Open Drain Output
Benefits
• High switching speed up to 10kHz
• Long life; up to 20 billion operations
• Operates in static or dynamic
magnetic field
• Unaffected by harsh environment
• Customer selection of cable length
and connector type
Applications
• Position and limit sensing
• RPM measurement
• Commutation of brushless
DC motors
• Flow metering
• Angle sensing
• Magnetic encoders
Dimensions
Dimensions in mm (inch)
Block Diagram
Notes:
1. Add capacitor Cn as shown, close for the sensors for transient suppression if required.
2. Add pull-up resistor Rpu as shown for sinking output. The Rpu value should be calculated
using your supply voltage while keeping the ON state current at a level below the
maximum. Rpu = VDD/Io;
Rpu = 12Vdc/10mA = 1.2
23.00
(.906)
9.50
(.374)
Encapsulant excluded
300
(11.81)
6.35 NOM.
(.250)
14.00
(.551)
11.00
(.433)
General Tol.: ±(.005) 0.13
3.20x3.81 TYP.
Slot (.12x.150) Centre of Sensitivity
6.00
(.236)
3.00
(.118)
14.00
(.551)
7.50
(.295)
Two-wire version illustrated.
VDD
Pin 1
(Red) Hall
Plate
Clock
Comparator
Cn
GND
Pin 2
(Black)
Switch Current
Source
Two-wire Ve rsion
VDD
Pin 1
(Red) Hall
Plate
Clock
Comparator
Cn
Rpu
VDD
OUT
Pin 3
(Blue)
GND
Pin 2
(Black)
Switch Output
Three-wire Ve rsion
littelfuse.com© 2019 Littelfuse Revised: 02/08/19
Specifications are subject to change without notice.
Hall Effect Sensors
Flange Mount > 55140
55140 Miniature Flange Mounting Sensor
Electrical Ratings
Hall Type Digital Switch
Three-Wire
(Voltage Output)
Digital Switch
Two-Wire
(Current Output)
A - Analogue
(Programmable Only) 2
Supply Voltage 1
Absolute Ratings
Operate
Overvoltage Protection
Vdc
Vdc
Vdc - max.
-15 to +28
+3.8 to +24
32
-15 to +28
+3.75 to +24
32
8.5
4.5 - 5.5
19.5
Output High Voltage Vdc - min. Sinking output N/A 4.65
Output Low Voltage Vdc - max. 0.4 @ 20mA N/A 0.35
Output Current
(continuously on) mA - max. 20 N/A -1.0 to +1.0
Current Consumption
Over Temperature Range Low
High mA - min.
mA - max. 1.6 - 5.2
1.6 - 5.2 5.0 - 6.9
12.0 - 17.0 2.0 - 10.0
2.0 - 10.0
Switching Speed kHz 10 10 2
Temperature Operating °C -40 to +100 -40 to +100 -40 to +100
Notes:
1. As long as Tj (Junction Temperature) is not exceeded. It is recommended to operate within the normal Operate Supply Voltage of +24Vdc maximum.
Operating beyond Absolute Ratings may cause permanent damage to the Hall IC.
2. Preprogrammed by Littelfuse or Customer pending agreement.
3. For custom modifications to the wire length or size, or adding a special connector, please contact Littelfuse.
littelfuse.com© 2019 Littelfuse Revised: 02/08/19
Specifications are subject to change without notice.
Hall Effect Sensors
Flange Mount > 55140
Packaging
Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width
Bulk Bulk 500 N/A N/A
Part Numbering System
55140 - XX - XX - X
Series
Termination
A, E, or F
Cable Length
02
Hall Option
2M, 2H, 3M, 3H, or AP
55140 Miniature Flange Mounting Sensor
Cable Length Options
Cable Type: 24AWG 7/32 PVC 105°C UL 1430/UL1569
Select Option Cable Length
mm (inch)
02 300 (11.81)
Hall Options
Select Option Hall Type Sensitivity Gauss
(typ.) Activate - D
mm (inch)
2M 2 Wire Switch 120 13.5 (.531)
2H 2 Wire Switch 57 18.5 (.728)
3M 3 Wire Switch 130 12.5 (.492)
3H 3 Wire Switch 59 18.0 (709)
AP Analog Programmable Consult Littelfuse
Note: Active distances are approximate using NEFEB Magnet 21 x 7 x 4.7
(.827L x .276W x .185H) LITTELFUSE P/N H-58
Termination Specification
Termination Options
Select
Option Description
(Two-wire versions illustrated)
ATinned leads (6.4±0.76)mm
FUntinned leads (6.4±0.76)mm
EJST type XHP 2.5mm pitch
D
NS
