Magnets and Actuators Datasheet
Magnets and Actuators
Magnetic Actuators
RoHS
Description
Littelfuse offers a wide range of magnetic actuators that are
packaged in shapes similar to the relative mating sensors. We also
offer a limited family of bare magnets with various grades of
materials, including ferrite (ceramic), AlNiCo and neodymium iron
boron (NdFeB) materials.
Rectangular Actuators
These rectangular bare magnets and packaged actuators are ideally suited for mounting on a flat surface. They are suitable for use in a
wide range of environments, including high-temperature applications.
Recommended
OperatingTemp.
Overall Dimensions
Retentivity Coercivity
Product
Series
Description
Material
mm (inch)
˚C
L xW x H
Gauss
10,900
10,900
10,900
10,900
13,300
11,700
11,700
11,000
11,000
12,800
11,000
11,000
11,700
11,000
11,000
11,000
11,700
11,000
11,000
Oersted
620
620
620
620
11,800
10,800
10,800
620
620
640
620
620
10,800
620
620
620
10,800
620
Max.
450
450
450
450
120
120
120
105
105
150
105
105
105
105
105
105
105
105
105
H-31
H-32
H-33
H-34
H-40
H-41
H-58
57105
57125
AlNiCo Magnet
AlNiCo Magnet
AlNiCo Magnet
AlNiCo Magnet
Neodymium Magnet
12.70 (0.500) x 1.60 (0.062) x 1.60 (0.062)
25.40 (1.000) x 4.80 (0.190) x 4.80 (0.190)
19.10 (0.750) x 3.20 (0.120) x 3.20 (0.120)
25.40 (1.000) x 6.35 (0.250) x 6.35 (0.250)
7.62 (0.300) x 3.18 (0.125) x 3.18 (0.125)
19.05 (0.750) x 3.18 (0.125) x 3.18 (0.125) NdFeB 35H
21.00 (0.827) x 7.00 (0.276) x 4.70 (0.185) NdFeB 35H
40.17 (1.582) x 19.05 (0.750) x 6.35 (0.250)
28.57 (1.125) x 19.05 (0.750) x 6.35 (0.250)
AlNiCo-5
AlNiCo-5
AlNiCo-5
AlNiCo-5
NdFeB 45H
Neodymium Magnet
Neodymium Magnet
Actuator forTerminal Flange Mount Sensor
Actuator for Pinned Flange Mount Sensor
AlNiCo-5
AlNiCo-5
AlNiCo-5
AlNiCo-5
AlNiCo-5
57135 Actuator for High-Temp Flange Mount Sensor 28.57 (1.125) x 19.05 (0.750) x 6.35 (0.250)
57140
57141
57142
Actuator for Mini Flange Mount Sensor
Actuator for Mini Flange Mount Sensor
Actuator for Mini Flange Mount Sensor
23.00 (0.906) x 14.00 (0.551) x 6.00 (0.236)
23.00 (0.906) x 14.00 (0.551) x 6.00 (0.236)
23.00 (0.906) x 14.00 (0.551) x 6.00 (0.236) NdFeB 35H
57143 White Actuator for Mini Flange Mount Sensor 23.00 (0.906) x 14.00 (0.551) x 6.00 (0.236)
AlNiCo-5
AlNiCo-5
AlNiCo-5
57145
57150
Actuator for Flange Mount Sensor
Actuator for Flange Mount Sensor
28.57 (1.125) x 19.05 (0.750) x 6.35 (0.250)
28.57 (1.125) x 19.05 (0.750) x 6.35 (0.250)
57155 Actuator for Subminiature Flange Mount Sensor 12.70 (0.500) x 7.00 (0.276) x 3.00 (0.118) NdFeB 35H
57045
57050
Actuator for Mini PCB Mount Overmolded
Actuator for PCB Mount Overmolded
17.78 (0.700) x 3.30 (0.130) x 4.32 (0.170)
22.86 (0.900) x 4.57 (0.180) x 4.57 (0.180)
AlNiCo-5
AlNiCo-5
620
Cylindrical Actuators
Designed for mounting on a frame, these cylindrical bare magnets and packaged actuators are appropriate for use in a wide range of
environments, including high-temperature applications.
Recommended
OperatingTemp.
Overall Dimensions
mm (inch)
Retentivity Coercivity
Product
Series
Description
Material
˚C
Ø x L
Gauss
11,700
11,700
3,900
12,800
11,000
11,000
11,000
11,700
11 000
11,000
11,000
11,000
2,900
Oersted
10,800
10,800
2,400
640
620
620
620
10,800
620
Max.
120
150
250
450
105
105
105
105
105
105
105
105
105
H-35
H-48
Neodymium Magnet
Neodymium Magnet
6.35 (0.250) x 6.35 (0.250)
4.40 (0.173) x 6.00 (0.236)
12.70 (0.500) x 5.08 (0.200)
4.60 (0.182) x 25.40 (1.000)
5.10 (0.201) x 15.24 (0.600)
5.80 (0.228) x 25.40 (1.000)
6.22 (0.245) x 25.40 (1.000)
10.70 (0.420) x 31.00 (1.220)
10.70 (0.420) x 31.00 (1.220)
M8 x 1.25 Pitch x 36.00 (1.420)
(5/16 x 24) Pitch x 38.10 (1.500)
M8 x 1.25 Pitch x 38.10 (1.500)
M12 x 1.00 Pitch x 46.00 (1.810)
NdFeB 35H
NdFeB 35SH
Ceramic-5
AlNiCo-5
AlNiCo-5
AlNiCo-5
AlNiCo-5
NdFeB 35H
AlNiCo5
AlNiCo-5
AlNiCo-5
CM-1
H-36
Ceramic Magnet
AlNiCo Magnet
57020
57022
57025
57040
57041
Actuator for Mini Cylindrical
Actuator for Cylindrical
Actuator for Cylindrical
Actuator for Cylindrical with Retaining Ribs
Actuator for Cylindrical with Retaining Ribs
57060 Actuator for Stainless SteelThreaded Barrel Sensor
620
620
620
2,400
57065
57070
57075
Actuator forThreaded Barrel Sensor (Standard)
Actuator forThreaded Barrel Sensor (Metric)
Actuator for Heavy DutyThreaded Barrel Sensor
AlNiCo-5
Ceramic-2
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are
not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at http://www.littelfuse.com/disclaimer-electronics.
© 2023 Littelfuse, Inc.
Specifications are subject to change without notice.
1
Revised: GD. 06/16/23