Reed switches are devices commonly used for position sensing and control applications. One important aspect is their actuation distance, which determines how close a magnetic field needs to be in order to actuate the Reed Switch.

The actuating distance of a reed switch is typically specified as the distance between the switch and a magnet required for the switch to close. The actuation distance is influenced by various factors, such as the strength of the magnetic field or Magnet, the magnetic sensitivity (AT Band) of the reed switch, and the surrounding environment.

A stronger magnetic field will increase the operating distance of a reed switch. This means that a switch will close even when the magnet is further away if the magnetic field is stronger. On the other hand, a weaker magnetic field will require the magnet to be closer to the switch in order to trigger it.

The physical characteristics of a reed switch also play a role in determining the actuation distance. This includes factors such as the length and thickness of the reeds which fix the flexibility, as well as the gap between them. Generally, reed switches with smaller gaps will have wider actuation distances.

The environment in which the reed switch is placed can also affect its actuation distance. Factors such as temperature, humidity, and vibration can influence the performance of the switch. For example, high temperatures may increase the AT band of the Reed Switch, which can increase the actuation distance, as well as weaken the strength of the actuating magnet.

It is important to consider the actuation distance when selecting a reed switch for a particular application. Choosing a switch with the correct actuation distance ensures reliable operation and accurate sensing. Additionally, understanding the factors that affect actuation distance allows for proper installation of the reed switch.

In conclusion, actuation distance is a crucial factor in the performance of reed switches. By considering factors such as the strength of the magnetic field, physical characteristics of the switch, and the environment, one can select the most suitable reed switch for their application, leading to optimal performance and reliability.

Most Reed Switch applications use magnets and for making AT band and Actuating Magnet Selection easier, we have listed various combinations of operating distances and corresponding magnets. Selecting the right AT band and magnet for an application is important and can be done by going through our AT band Selection guide and our magnet selection guide.

Actuation Distances for UM-0018-M Reed Switches

Actuation Distances for UM-0018-M Reed Switches For easy selection of AT band and Magnet for an application, we offer Actuation distances for the UM-0018-M Reed Switch in, Cropped, SMD,...Continue reading ->

Dec 2, 2020

Actuation Distances for UM-0018-H Reed Switches

Actuation Distances for UM-0018-H Reed Switches For easy selection of AT band and Magnet for an application, we offer Actuation distances for the UM-0018-H Reed Switch in cropped, SMD...Continue reading ->

Nov 25, 2020

 

Actuation Distances for MM-1018 Reed Switches

Actuation Distances for MM-1018 Reed Switches For easy selection of AT band and Magnet for an application, we offer Actuation distances for the MM-1018 Reed Switch in cropped, SMD,...Continue reading ->

Nov 25, 2020

Actuation Distances for RM-1318 Reduced Miniature Reed Switches

Actuation Distances for RM-1318 Reduced Miniature Reed Switches For easy selection of AT band and Magnet for an application, we offer Actuation distances for the RM-1318 Reduced Miniature Reed Switch in...Continue reading ->

Nov 25, 2020

 

Actuation Distances for SM-1322 Reed Switches

Actuation Distances for SM-1322 Reed Switches For easy selection of AT band and Magnet for an application, we offer Actuation distances for the SM-1322 Sub Miniature Reed Switch in...Continue reading ->

Nov 25, 2020

Actuation Distances for MO-1422 Reed Switches

Actuation Distances for MO-1422 Reed Switches For easy selection of AT band and Magnet for an application, we offer Actuation distances for the MO-1422 Miniature Off-Centre Contact...Continue reading ->

Nov 8, 2022

 

Actuation Distances for MC-1425 Reed Switches

Actuation Distances for MC-1425 Reed Switches For easy selection of AT band and Magnet for an application, we offer Actuation distances for the MC-1425 Close Differential Reed Switch...Continue reading ->

Nov 25, 2020

Actuation Distances for LV-1925 Formed Reed Switch

Actuation Distances for LV-1925 Formed Reed Switch For easy selection of AT band and Magnet for an application, we offer Actuation distances for the LV-1925 Reed Switch in cropped, SMD,...Continue reading ->

Dec 2, 2020

 

Actuation Distances for IL-2022-L Formed Reed Switch

Actuation Distances for IL-2022-L Formed Reed Switch For easy selection of AT band and Magnet for an application, we offer Actuation distances for the IL-2022 Reed Switch in cropped, SMD,...Continue reading ->

Dec 3, 2020

Actuation Distances for HB-2232 Formed Reed Switch

Actuation Distances for HB-2232 Formed Reed Switch For easy selection of AT band and Magnet for an application, we offer Actuation distances for the HB-2232 Reed Switch in cropped, SMD,...Continue reading ->

Dec 3, 2020

 

Actuation Distances for HW-5052-L Reed Switch

Actuation Distances for HW-5052-L Reed Switch For easy selection of AT band and Magnet for an application, we offer Actuation distances for the HW-5052-L Reed Switch in full length and...Continue reading ->

Dec 3, 2020