Magnets and Actuators
Magnetic Actuators
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.
Product
Series
H-31
H-32
H-33
H-34
H-40
H-41
H-58
57105
57125
57135
57140
57141
57142
57145
57150
57045
57050
Overall Dimensions
Description
AlNiCo Magnet
AlNiCo Magnet
AlNiCo Magnet
AlNiCo Magnet
Neodymium Magnet
Neodymium Magnet
Neodymium Magnet
Actuator for Terminal Flange Mount Sensor
Actuator for Pinned Flange Mount Sensor
Actuator for High-Temp Flange Mount Sensor
Actuator for Mini Flange Mount Sensor
Actuator for Mini Flange Mount Sensor
Actuator for Mini Flange Mount Sensor
Actuator for Flange Mount Sensor
Actuator for Flange Mount Sensor
Actuator for Mini PCB Mount Overmolded
Actuator for PCB Mount Overmolded
mm (inch)
LxWxH
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)
21.00 (0.827) x 7.00 (0.276) x 4.70 (0.185)
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)
28.57 (1.125) x 19.05 (0.750) x 6.35 (0.250)
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)
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)
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
AlNiCo-5
AlNiCo-5
NdFeB 45H
NdFeB 35H
NdFeB 35H
AlNiCo-5
AlNiCo-5
AlNiCo-5
AlNiCo-5
AlNiCo-5
NdFeB 35H
AlNiCo-5
AlNiCo-5
AlNiCo-5
AlNiCo-5
Material
Retentivity
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
11,000
Coercivity
Oersted
620
620
620
620
11,800
10,800
10,800
620
620
640
620
620
10,800
620
620
620
620
Recommended Operating Temp.
˚C
Max.
450
450
450
450
120
120
120
105
105
150
105
105
105
105
105
105
105
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.
Product
Series
H-35
H-48
CM-1
H-36
H-315
H-420
H-625
57020
57022
57025
57030
57040
57060
57065
57070
57075
Overall Dimensions
Description
Neodymium Magnet
Neodymium Magnet
Ceramic Magnet
AlNiCo Magnet
AlNiCo Magnet
AlNiCo Magnet
AlNiCo Magnet
Actuator for Mini Firecracker
Actuator for Firecracker
Actuator for Firecracker
Actuator for Long Firecracker
Actuator for Firecracker with Retaining Ribs
Actuator for Stainless Steel Threaded Barrel Sensor
Actuator for Threaded Barrel Sensor (Standard)
Actuator for Threaded Barrel Sensor (Metric)
Actuator for Heavy Duty Threaded Barrel Sensor
mm (inch)
ØxL
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)
3.00 (0.118) x 15.00 (0.590)
4.00 (0.157) x 20.0 (0.787)
6.00 (0.236) x 25.0 (0.984)
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)
6.22 (0.245) x 38.10 (1.500)
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
AlNiCo-5
AlNiCo-5
AlNiCo-5
AlNiCo-5
NdFeB 35H
AlNiCo-5
AlNiCo-5
AlNiCo-5
Ceramic-2
Material
Retentivity
Gauss
11,700
11,700
3,900
12,800
11,000
11,000
11,000
11,000
11,000
11,000
11,000
11,700
11,000
11,000
11,000
2,900
Coercivity
Oersted
10,800
10,800
2,400
640
620
620
620
620
620
620
620
10,800
620
620
620
2,400
Recommended Operating Temp.
˚C
Max.
120
150
250
450
450
450
450
105
105
105
105
105
105
105
105
105
© 2015 Littelfuse
Revised: 11/03/15
Specifications are subject to change without notice.
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