For easy selection of AT band and Magnet for an application, we offer Actuation distances for the SM-1322 Sub Miniature Reed Switch in cropped, SMD , Horizontal Mount and Vertical Mount formations. The various combinations of standard AT Bands and magnets are covered, from the lower AT bands to the higher AT bands. Each AT band lists distances when actuated with our standard magnets. Although some of the AT band / magnet combinations of this SM-1322 reed switch will produce similar actuating distances, selecting the right AT band and magnet for an application is important. Our Usage Notes below addresses these topics.
All distances given are in mm and standard tolerances of ±0.5 mm apply.
Magnet actuation direction Operate Band 10-20 (AT)
Magnet Dimensions Operate DistanceRelease DistanceNDR-T 4.0 x 1.5 x 1.5 2.5 – 4.0 3.5 – 5.0 NDR-S 6.0 x 2.5 x 2.5 6.5 – 10.0 8.0 – 11.0 NDR-M 8.0 x 3.0 x 3.0 9.5 – 12.0 11.5 – 14.0 NDR-I 12.0 x 3.5 x 3.5 13.5 – 18.0 15.5 – 20.0 NDR-L 19.0 x 4.0 x 4.0 17.0 – 23.0 20.0 – 25.0 NDC-T Ø2.0 x 4.0 3.0 – 5.0 4.0 – 6.0 NDC-S Ø3.0 x 7.0 7.5 – 11.0 9.0 – 12.0 NDC-M Ø4.0 x 10.0 11.5 – 16.0 13.5 – 18.0 NDC-I Ø6.0 x 12.0 18.0 – 24.0 21.0 – 26.0 NDC-L Ø8.0 x 15.0 25.0 – 33.0 29.0 – 35.0
Operate Band 20-30 (AT)
Magnet Dimensions Operate Distance Release Distance NDR-T 4.0 x 1.5 x 1.5 1.0 – 2.5 2.0 – 3.5 NDR-S 6.0 x 2.5 x 2.5 5.0 – 6.5 7.0 – 8.0 NDR-M 8.0 x 3.0 x 3.0 8.0 – 9.5 10.0 – 11.5 NDR-I 12.0 x 3.5 x 3.5 12.0 – 13.5 15.0 – 15.5 NDR-L 19.0 x 4.0 x 4.0 14.5 – 17.0 18.0 – 20.0 NDC-T Ø2.0 x 4.0 2.0 – 3.0 3.0 – 4.0 NDC-S Ø3.0 x 7.0 6.5 – 7.5 8.5 – 9.0 NDC-M Ø4.0 x 10.0 10.0 – 11.5 12.5 – 13.5 NDR-C Ø6.0 x 12.0 16.0 – 18.0 19.5 – 21.0 NDC-L Ø8.0 x 15.0 21.0 – 25.0 26.5 – 29.0
Operate Band 30-40 (AT)
Magnet Dimensions Operate Distance Release Distance NDR-T 4.0 x 1.5 x 1.5 0.5 – 1.0 1.0 – 2.0 NDR-S 6.0 x 2.5 x 2.5 4.0 – 5.0 7.0 – 7.5 NDR-M 8.0 x 3.0 x 3.0 6.0 – 8.0 9.0 – 10.0 NDR-I 12.0 x 3.5 x 3.5 10.0 – 12.0 13.0 – 14.0 NDR-L 19.0 x 4.0 x 4.0 13.0 – 14.5 17.0 – 18.0 NDC-T Ø2.0 x 4.0 1.5 – 2.0 2.5 – 3.0 NDC-S Ø3.0 x 7.0 5.0 – 6.5 8.0 – 8.5 NDC-M Ø4.0 x 10.0 9.0 – 10.0 12.0 – 12.5 NDC-I Ø6.0 x 12.0 14.0 – 16.0 18.5 – 19.5 NDC-L Ø8.0 x 15.0 19.0 – 21.0 25.5 – 26.5
Magnet actuation direction Operate Band 10-20 (AT)
Magnet Dimensions Operate Distance Release Distance NDR-T 4.0 x 1.5 x 1.5 2.0 – 4.5 3.0 – 5.0 NDR-S 6.0 x 2.5 x 2.5 6.5 – 9.5 8.0 – 10.0 NDR-M 8.0 x 3.0 x 3.0 10.0 – 13.5 12.0 – 14.0 NDR-I 12.0 x 3.5 x 3.5 13.0 – 18.0 16.0 – 19.0 NDR-L 19.0 x 4.0 x 4.0 17.5 – 22.0 20.5 – 23.0 NDC-T Ø2.0 x 4.0 2.5 – 5.0 3.5 – 5.5 NDC-S Ø3.0 x 7.0 8.0 – 11.0 10.0 – 11.5 NDC-M Ø4.0 x 10.0 12.0 – 17.0 15.0 – 18.0 NDR- I Ø6.0 x 12.0 19.0 – 25.0 22.0 – 26.0 NDC-L Ø8.0 x 15.0 26.0 – 34.0 30.0 – 35.0
Operate Band 20-30 (AT)
Magnet Dimensions Operate Distance Release Distance NDR-T 4.0 x 1.5 x 1.5 1.5 – 2.0 2.5 – 3.0 NDR-S 6.0 x 2.5 x 2.5 5.5 – 6.5 7.5 – 8.0 NDR-M 8.0 x 3.0 x 3.0 8.5 – 10.0 10.5 – 12.0 NDR-I 12.0 x 3.5 x 3.5 11.5 – 13.0 14.5 – 16.0 NDR-L 19.0 x 4.0 x 4.0 15.0 – 17.5 19.0 – 20.5 NDC-T Ø2.0 x 4.0 2.0 – 2.5 3.0 – 3.5 NDC-S Ø3.0 x 7.0 7.0 – 8.0 9.0 – 10.0 NDC-M Ø4.0 x 10.0 10.5 – 12.0 13.5 – 15.0 NDC-I Ø6.0 x 12.0 16.0 – 19.0 20.0 – 22.0 NDC-L Ø8.0 x 15.0 22.0 – 26.0 29.0 – 30.0
Operate Band 30-40 (AT)
Magnet Dimensions Operate Distance Release Distance NDR-T 4.0 x 1.5 x 1.5 1.0 – 1.5 2.0 – 2.5 NDR-S 6.0 x 2.5 x 2.5 4.5 – 5.5 7.0 – 7.5 NDR-M 8.0 x 3.0 x 3.0 7.5 – 8.5 10.0 – 10.5 NDR-I 12.0 x 3.5 x 3.5 10.5 – 11.5 14.0 – 14.5 NDR-L 19.0 x 4.0 x 4.0 13.0 – 15.0 17.5 – 19.0 NDC-T Ø2.0 x 4.0 1.5 – 2.0 2.5 – 3.0 NDC-S Ø3.0 x 7.0 6.0 – 7.0 8.5 – 9.0 NDC-M Ø4.0 x 10.0 9.5 – 10.5 12.5 – 13.5 NDC-I Ø6.0 x 12.0 15.0 – 16.0 19.5 – 20.0 NDC-L Ø8.0 x 15.0 20.0 – 22.0 26.0 – 29.0
Magnet actuation direction Operate Band 10-20 (AT)
Magnet Dimensions Operate Distance Release Distance NDR-T 4.0 x 1.5 x 1.5 2.0 – 4.5 3.5 – 5.0 NDR-S 6.0 x 2.5 x 2.5 6.5 – 9.5 8.5 – 10.0 NDR-M 8.0 x 3.0 x 3.0 10.0 – 14.0 12.5 – 15.0 NDR-I 12.0 x 3.5 x 3.5 13.0 – 19.0 16.5 – 20.5 NDR-L 19.0 x 4.0 x 4.0 17.5 – 25.5 21.5 – 28.0 NDC-T Ø2.0 x 4.0 3.0 – 5.0 4.5 – 5.5 NDC-S Ø3.0 x 7.0 8.0 – 11.0 10.0 – 12.0 NDC-M Ø4.0 x 10.0 12.0 – 18.0 15.5 – 19.5 NDC-I Ø6.0 x 12.0 19.0 – 27.0 24.0 – 30.0 NDC-L Ø8.0 x 15.0 27.0 – 37.0 33.0 – 40.0
Operate Band 20-30 (AT)
Magnet Dimensions Operate Distance Release Distance NDR-T 4.0 x 1.5 x 1.5 1.0 – 2.0 3.0 – 3.5 NDR-S 6.0 x 2.5 x 2.5 5.0 – 6.5 8.0 – 8.5 NDR-M 8.0 x 3.0 x 3.0 8.5 – 10.0 11.5 – 12.5 NDR-I 12.0 x 3.5 x 3.5 11.5 – 13.0 15.5 – 16.5 NDR-L 19.0 x 4.0 x 4.0 15.0 – 17.5 21.0 – 21.5 NDC-T Ø2.0 x 4.0 2.0 – 3.0 4.0 – 4.5 NDC-S Ø3.0 x 7.0 7.0 – 8.0 9.5 – 10.0 NDC-M Ø4.0 x 10.0 10.5 – 12.0 15.0 – 15.5 NDC-I Ø6.0 x 12.0 17.0 – 19.0 23.0 – 24.0 NDC-L Ø8.0 x 15.0 23.0 – 27.0 32.0 – 33.0
Operate Band 30-40 (AT)
Magnet Dimensions Operate Distance Release Distance NDR-T 4.0 x 1.5 x 1.5 0.5 – 1.0 1.5 – 3.0 NDR-S 6.0 x 2.5 x 2.5 4.0 – 5.0 6.5 – 8.0 NDR-M 8.0 x 3.0 x 3.0 7.0 – 8.5 10.0 – 11.5 NDR-I 12.0 x 3.5 x 3.5 10.5 – 11.5 14.0 – 15.5 NDR-L 19.0 x 4.0 x 4.0 13.0 – 15.0 18.0 – 21.0 NDC-T Ø2.0 x 4.0 1.5 – 2.0 3.0 – 4.0 NDC-S Ø3.0 x 7.0 6.0 – 7.0 8.5 – 9.5 NDC-M Ø4.0 x 10.0 9.5 – 10.5 13.0 – 15.0 NDC-I Ø6.0 x 12.0 15.0 – 17.0 20.0 – 23.0 NDC-L Ø8.0 x 15.0 21.0 – 23.0 28.0 – 32.0
Magnet actuation direction Operate Band 10-20 (AT)
Magnet Dimensions Operate Distance Release Distance NDR-T 4.0 x 1.5 x 1.5 2.0 – 4.0 3.0 – 5.0 NDR-S 6.0 x 2.5 x 2.5 6.5 – 10.0 8.0 – 11.0 NDR-M 8.0 x 3.0 x 3.0 10.5 – 14.0 11.5 – 15.5 NDR-I 12.0 x 3.5 x 3.5 13.5 – 17.5 16.0 – 19.0 NDR-L 19.0 x 4.0 x 4.0 18.0 – 24.0 22.0 – 26.0 NDC-T Ø2.0 x 4.0 2.5 – 5.0 3.5 – 6.0 NDC-S Ø3.0 x 7.0 8.0 – 11.0 10.0 – 12.5 NDC-M Ø4.0 x 10.0 12.0 – 16.5 15.0 – 18.0 NDC-I Ø6.0 x 12.0 20.0 – 26.0 24.0 – 28.5 NDC-L Ø8.0 x 15.0 26.0 – 35.0 31.0 – 38.0
Operate Band 20-30 (AT)
Magnet Dimensions Operate Distance Release Distance NDR-T 4.0 x 1.5 x 1.5 1.0 – 2.0 2.5 – 3.0 NDR-S 6.0 x 2.5 x 2.5 5.0 – 6.5 7.5 – 8.0 NDR-M 8.0 x 3.0 x 3.0 7.5 – 10.5 10.5 – 11.5 NDR-I 12.0 x 3.5 x 3.5 11.0 – 13.5 14.5 – 16.0 NDR-L 19.0 x 4.0 x 4.0 15.0 – 18.0 19.0 – 22.0 NDC-T Ø2.0 x 4.0 1.5 – 2.5 3.0 – 3.5 NDC-S Ø3.0 x 7.0 6.0 – 8.0 8.5 – 10.0 NDC-M Ø4.0 x 10.0 10.0 – 12.0 13.5 – 15.0 NDC-I Ø6.0 x 12.0 17.0 – 20.0 21.0 – 24.0 NDC-L Ø8.0 x 15.0 23.0 – 26.0 28.0 – 31.0
Operate Band 30-40 (AT)
Magnet Dimensions Operate Distance Release Distance NDR-T 4.0 x 1.5 x 1.5 0.5 – 1.0 2.0 – 2.5 NDR-S 6.0 x 2.5 x 2.5 4.0 – 5.0 6.0 – 7.5 NDR-M 8.0 x 3.0 x 3.0 7.0 – 7.5 10.0 – 10.5 NDR-I 12.0 x 3.5 x 3.5 10.0 – 11.0 14.0 – 14.5 NDR-L 19.0 x 4.0 x 4.0 13.0 – 15.0 18.0 – 19.0 NDC-T Ø2.0 x 4.0 1.0 – 1.5 3.0 -3.5 NDC-S Ø3.0 x 7.0 5.0 – 6.0 8.0 – 8.5 NDC-M Ø4.0 x 10.0 8.5 – 10.0 12.5 – 13.5 NDC-I Ø6.0 x 12.0 14.5 – 17.0 19.5 – 21.0 NDC-L Ø8.0 x 15.0 20.0 – 23.0 26.0 – 28.0