littelfuse.com

© 2015 Littelfuse

Revised: 11/03/15

Specifications are subject to change without notice.

Magnetic Actuators

Magnets and Actuators

Product

Series

Description

Overall Dimensions

Material

Retentivity

Coercivity

Recommended Operating Temp.

mm (inch)

˚C

L x W x H

Gauss

Oersted

Max.

H-31

AlNiCo Magnet

12.70 (0.500) x 1.60 (0.062) x 1.60 (0.062)

AlNiCo-5

10,900

620

450

H-32

AlNiCo Magnet

25.40 (1.000) x 4.80 (0.190) x 4.80 (0.190)

AlNiCo-5

10,900

620

450

H-33

AlNiCo Magnet

19.10 (0.750) x 3.20 (0.120) x 3.20 (0.120)

AlNiCo-5

10,900

620

450

H-34

AlNiCo Magnet

25.40 (1.000) x 6.35 (0.250) x 6.35 (0.250)

AlNiCo-5

10,900

620

450

H-40

Neodymium Magnet

7.62 (0.300) x 3.18 (0.125) x 3.18 (0.125)

NdFeB 45H

13,300

11,800

120

H-41

Neodymium Magnet

19.05 (0.750) x 3.18 (0.125) x 3.18 (0.125)

NdFeB 35H

11,700

10,800

120

H-58

Neodymium Magnet

21.00 (0.827) x 7.00 (0.276) x 4.70 (0.185)

NdFeB 35H

11,700

10,800

120

57105

Actuator for Terminal Flange Mount Sensor

40.17 (1.582) x 19.05 (0.750) x 6.35 (0.250)

AlNiCo-5

11,000

620

105

57125

Actuator for Pinned Flange Mount Sensor

28.57 (1.125) x 19.05 (0.750) x 6.35 (0.250)

AlNiCo-5

11,000

620

105

57135

Actuator for High-Temp Flange Mount Sensor

28.57 (1.125) x 19.05 (0.750) x 6.35 (0.250)

AlNiCo-5

12,800

640

150

57140

Actuator for Mini Flange Mount Sensor

23.00 (0.906) x 14.00 (0.551) x 6.00 (0.236)

AlNiCo-5

11,000

620

105

57141

Actuator for Mini Flange Mount Sensor

23.00 (0.906) x 14.00 (0.551) x 6.00 (0.236)

AlNiCo-5

11,000

620

105

57142

Actuator for Mini Flange Mount Sensor

23.00 (0.906) x 14.00 (0.551) x 6.00 (0.236)

NdFeB 35H

11,700

10,800

105

57145

Actuator for Flange Mount Sensor

28.57 (1.125) x 19.05 (0.750) x 6.35 (0.250)

AlNiCo-5

11,000

620

105

57150

Actuator for Flange Mount Sensor

28.57 (1.125) x 19.05 (0.750) x 6.35 (0.250)

AlNiCo-5

11,000

620

105

57045

Actuator for Mini PCB Mount Overmolded

17.78 (0.700) x 3.30 (0.130) x 4.32 (0.170)

AlNiCo-5

11,000

620

105

57050

Actuator for PCB Mount Overmolded

22.86 (0.900) x 4.57 (0.180) x 4.57 (0.180)

AlNiCo-5

11,000

620

105

Product

Series

Description

Overall Dimensions

Material

Retentivity

Coercivity

Recommended Operating Temp.

mm (inch)

˚C

Ø x L

Gauss

Oersted

Max.

H-35

Neodymium Magnet

6.35 (0.250) x 6.35 (0.250)

NdFeB 35H

11,700

10,800

120

H-48

Neodymium Magnet

4.40 (0.173) x 6.00 (0.236)

NdFeB 35SH

11,700

10,800

150

CM-1

Ceramic Magnet

12.70 (0.500) x 5.08 (0.200)

Ceramic-5

3,900

2,400

250

H-36

AlNiCo Magnet

4.60 (0.182) x 25.40 (1.000)

AlNiCo-5

12,800

640

450

H-315

AlNiCo Magnet

3.00 (0.118) x 15.00 (0.590)

AlNiCo-5

11,000

620

450

H-420

AlNiCo Magnet

4.00 (0.157) x 20.0 (0.787)

AlNiCo-5

11,000

620

450

H-625

AlNiCo Magnet

6.00 (0.236) x 25.0 (0.984)

AlNiCo-5

11,000

620

450

57020

Actuator for Mini Firecracker

5.10 (0.201) x 15.24 (0.600)

AlNiCo-5

11,000

620

105

57022

Actuator for Firecracker

5.80 (0.228) x 25.40 (1.000)

AlNiCo-5

11,000

620

105

57025

Actuator for Firecracker

6.22 (0.245) x 25.40 (1.000)

AlNiCo-5

11,000

620

105

57030

Actuator for Long Firecracker

6.22 (0.245) x 38.10 (1.500)

AlNiCo-5

11,000

620

105

57040

Actuator for Firecracker with Retaining Ribs

10.70 (0.420) x 31.00 (1.220)

NdFeB 35H

11,700

10,800

105

57060

Actuator for Stainless Steel Threaded Barrel Sensor

M8 x 1.25 Pitch x 36.00 (1.420)

AlNiCo-5

11,000

620

105

57065

Actuator for Threaded Barrel Sensor (Standard)

(5/16 x 24) Pitch x 38.10 (1.500)

AlNiCo-5

11,000

620

105

57070

Actuator for Threaded Barrel Sensor (Metric)

M8 x 1.25 Pitch x 38.10 (1.500)

AlNiCo-5

11,000

620

105

57075

Actuator for Heavy Duty Threaded Barrel Sensor

M12 x 1.00 Pitch x 46.00 (1.810)

Ceramic-2

2,900

2,400

105

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.

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.