Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971

Actuation Distances for R2E Latching Reed Sensors

Operate and release distances for the R2E Latching type reed sensor in the two standard AT bands when actuated with NdFeB standard magnets are listed below. All distances given are in mm, with tolerances of ±0.5mm. Although some of the AT band / magnet combinations will produce similar actuating distances, selecting the right AT band and magnet for an application is important and can be done by going through our AT band FAQ and our magnet selection guide.

Actuation Distances for R2E-S Gull-wing SMD

R5B Magnet Actuation
Magnet Actuation Direction

Release Band 10-15 (AT)

MagnetDimensionsLatch/Un-Latch Distance
NDR-T4.0 x 1.5 x 1.54.0 – 7.0
NDR-S6.0 x 2.5 x 2.59.0 – 15.0
NDR-M8.0 x 3.0 x 3.014.0 – 21.0
NDR-I12.0 x 3.5 x 3.5
NDR-L19.0 x 4.0 x 4.028.0 – 37.0
NDC-TØ2.0 x 4.04.0 – 8.0
NDC-SØ3.0 x 7.013.0 – 19.0
NDC-MØ4.0 x 10.019.0 – 26.0
NDC-IØ6.0 x 12.0
NDC-LØ8.0 x 15.038.0 – 48.0

Ampere Turn Selection

Reed Sensor Manufacturer Cross Reference For any application, it is important to select the correct Ampere Turn (AT) or magnetic sensitivity of a Reed Switch, Reed Sensor or Continue reading ->

Aug 27, 2020

Magnet Usage

Magnet storage Rectangular Magnets The storage and usage temperature of magnets should be within the individual raw material specification limits. It Continue reading ->

Sep 4, 2019

Operating Characteristics of a Reed Switch

Magnetic characteristics of a reed switch The following examples show typical operating characteristics of a reed switch when actuated with a magnet from various axes. Generally, Continue reading ->

Sep 4, 2019

Magnet Information

Magnet Information In general, there are four families of magnets available commercially. Factors such as operating temperature, demagnetizing effects, Continue reading ->

Nov 4, 2020