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. It’s case design enables screw or adhesive mounting and 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
Comparator
Clock
Current
Source
Block Diagram
Two-wire Version
VDD
Pin 1
(Red)
Cn
GND
Pin 2
(Black)
Hall
Plate
• 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
Switch
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
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
Applications
• Position and limit sensing
• RPM measurement
• Commutation of brushless
DC motors
• Flow metering
• Angle sensing
• Magnetic encoders
Three-wire Version
VDD
Pin 1
(Red)
Cn
GND
Pin 2
(Black)
VDD
Hall
Plate
Switch
Comparator
Clock
Output
Rpu
OUT
Pin 3
(Blue)
Dimensions
Dimensions in mm (inch)
Two-wire version illustrated.
6.00
(.236)
7
.50
(.295)
14.00
(.551)
23.00
(.906)
Encapsulant excluded
9.50
(.374)
11.00
(.433)
300
(11.81)
6.35 NOM.
(.250)
3.00
(.118)
3.20x3.81 TYP
.
Slot (.12x.150)
14.00
(.551)
Centre of Sensitivity
General Tol.: ±(.005) 0.13
© 2017 Littelfuse
Revised: 02/16/17
Specifications are subject to change without notice.
littelfuse.com
Hall Effect Sensors
Flange Mount > 55140
55140 Miniature Flange Mounting Sensor
Electrical Ratings
Hall Type
Digital Switch
Three-Wire
(Voltage Output)
Absolute Ratings
Operate
Overvoltage Protection
Vdc
Vdc
Vdc - max.
Vdc - min.
Vdc - max.
mA - max.
Low
High
mA - min.
mA - max.
kHz
Operating
°C
-15 to +28
+3.8 to +24
32
Sinking output
0.4 @ 20mA
20
1.6 - 5.2
1.6 - 5.2
10
-40 to +100
Digital Switch
Two-Wire
(Current Output)
-15 to +28
+3.75 to +24
32
N/A
N/A
N/A
5.0 - 6.9
12.0 - 17.0
10
-40 to +100
A - Analogue
(Programmable Only)
8.5
4.5 - 5.5
19.5
4.65
0.35
-1.0 to +1.0
2.0 - 10.0
2.0 - 10.0
2
-40 to +100
2
Supply Voltage
1
Output High Voltage
Output Low Voltage
Output Current
(continuously on)
Current Consumption
Over Temperature Range
Switching Speed
Temperature
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.
© 2017 Littelfuse
Revised: 02/16/17
Specifications are subject to change without notice.
littelfuse.com
Hall Effect Sensors
Flange Mount > 55140
55140 Miniature Flange Mounting Sensor
Hall Options
Select Option
2M
2H
3M
3H
AP
Hall Type
2 Wire Switch
2 Wire Switch
3 Wire Switch
3 Wire Switch
Analog
Sensitivity Gauss
(typ.)
120
57
130
59
Programmable
Activate - D
mm (inch)
13.5 (.531)
18.5 (.728)
12.5 (.492)
18.0 (709)
Consult Littelfuse
D
N
S
Termination Specification
Termination Options
Select
Option
A
Description
(Two-wire versions illustrated)
Tinned leads (6.4±0.76)mm
Untinned leads (6.4±0.76)mm
JST type XHP 2.5mm pitch
Note: Active distances are approximate using NEFEB Magnet 21 x 7 x 4.7
(.827L x .276W x .185H) LITTELFUSE P/N H-58
F
E
Cable Length Options
Cable Type: 24AWG 7/32 PVC 105°C UL 1430/UL1569
Select Option
Cable Length
mm (inch)
Part Numbering System
02
300 (11.81)
55140 - XX - XX - X
Series
Hall Option
2M, 2H, 3M, 3H, or AP
Cable Length
02
Termination
A, E, or F
Packaging
Packaging Option
Bulk
Packaging Specification
Bulk
Quantity
500
Quantity & Packaging Code
N/A
Taping Width
N/A
© 2017 Littelfuse
Revised: 02/16/17
Specifications are subject to change without notice.
littelfuse.com
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