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Magnet Actuation Direction
Operate and release distances for the R5B ultra-miniature Normally closed reed sensor in the two standard AT bands when actuated (as shown in the sketches) with NdFeB standard magnets is shown 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 R5B-S Gull-wing SMD
Release Band 5-12 (AT)
| Magnet | Dimensions | Release Distance | Operate Distance |
| NDR-T | 4.0 x 1.5 x 1.5 | 1.0 – 2.5 | 1.5 – 3.0 |
| NDR-S | 6.0 x 2.5 x 2.5 | 4.0 – 6.0 | 4.5 – 6.5 |
| NDR-M | 8.0 x 3.0 x 3.0 | 6.5 – 7.5 | 7.0 – 8.0 |
| NDR-I | 12.0 x 3.5 x 3.5 | 8.0 – 10.5 | 8.5 – 11.0 |
| NDR-L | 19.0 x 4.0 x 4.0 | 10.5 – 12.5 | 11.0 – 13.0 |
| NDC-T | Ø2.0 x 4.0 | 1.5 – 2.5 | 2.0 – 3.5 |
| NDC-S | Ø3.0 x 7.0 | 5.5 – 6.5 | 6.0 – 7.0 |
| NDC-M | Ø4.0 x 10.0 | 8.0 – 10.0 | 8.5 – 10.5 |
| NDC-I | Ø6.0 x 12.0 | 12.0 – 14.5 | 12.5 – 15.0 |
| NDC-L | Ø8.0 x 15.0 | 17.0 – 20.0 | 17.5 – 21.5 |
Release Band 10-17 (AT)
| Magnet | Dimensions | Release Distance | Operate Distance |
| NDR-T | 4.0 x 1.5 x 1.5 | 0.5 – 2.0 | 1.0 – 2.5 |
| NDR-S | 6.0 x 2.5 x 2.5 | 3.0 – 5.0 | 3.5 – 5.5 |
| NDR-M | 8.0 x 3.0 x 3.0 | 5.0 – 7.5 | 5.5 – 8.0 |
| NDR-I | 12.0 x 3.5 x 3.5 | 7.0 – 9.5 | 7.5 – 10.0 |
| NDR-L | 19.0 x 4.0 x 4.0 | 8.0 – 12.0 | 8.5 – 12.5 |
| NDC-T | Ø2.0 x 4.0 | 1.0 – 2.5 | 1.5 – 3.0 |
| NDC-S | Ø3.0 x 7.0 | 4.0 – 5.5 | 4.5 – 6.0 |
| NDC-M | Ø4.0 x 10.0 | 6.5 – 9.5 | 7.0 – 10.0 |
| NDC-I | Ø6.0 x 12.0 | 10.0 – 13.5 | 10.5 – 14.0 |
| NDC-L | Ø8.0 x 15.0 | 14.5 – 19.0 | 15.0 – 19.5 |
