MG Series Solid State Sensors Magnets GENERAL INFORMATION Several bar and ring magnets for actuating Hall effect sensors are available from MICRO SWITCH. Bar magnets, in various sizes and strengths, are ideal for sensors with unipolar magnetic characteristics. The ring magnets, with alternate South and North poles on the outside diameter, are especially useful for sensors with bipolar magnetic characteristics. (For more information on magnets and methods of magnet actuation, see Application Data.) MOUNTING DIMENSIONS FEATURES ɀ Wide variety of sizes and shapes ɀ Wide variety of magnetic materials ɀ Threaded bushings available on some listings for easy installation (for reference only) 101MG3 101MG2L1 101MG7 PDFINFO Analog 102MG11 102MG15 103MG5 103MG6 103MG8 105MG5R2 106MG10 107MG1 Honeywell ɀ Sensing and Control ɀ 1-800-537-6945 USA ɀ ⍣1-815-235-6847 International ɀ 1-800-737-3360 Canada 25 p a g e - 0 2 5 MG Series Solid State Sensors Magnets MG ORDER GUIDE — BAR MAGNETS Catalog Listings 101MG3 101MG7* 101MG2L1* 102MG11* 102MG15* 103MG5** 103MG6*** 103MG8 106MG10* 107MG1 Outside Diameter 6,3 0.25 6,3 0.25 3,2 0.125 7,9 0.31 7,9 0.31 2,0 .078 2,0 .080 5,6 .220 10,2 0.40 15/32-32 UNS21 Length 6,3 0.25 9,5 0.375 17,0 0.67 12,2 .48 2,0 .078 3,1 .120 5,6 .220 23,6 0.93 25,4 1.00 31,7 1.25 * Bulk packaging in 100 unit lots. Add -BP to catalog listing. ** 125 pieces per tube. Poles not marked. *** 75 pieces per tube. Poles not marked. MG ORDER GUIDE — RING MAGNETS Catalog Listings 105MG5R2 105MG5R4 Outside Diameter 15,9 0.625 15,9 0.625 # Pole Pairs 2 4 MAGNET SELECTION GUIDE This guide is designed to aid in determining the best magnet for use with a Hall effect sensor. There are several factors to consider when choosing a magnet. The most important is gap distances. There must be adequate magnetic gauss to operate the sensor at the correct distance. By using the maximum operate magnetic gauss characteristics (see sensor order guides), you can determine which magnet(s) will operate the sensor. Other important factors include temperature range and the physical environment of the application. Physical Strength Temperature Range* Magnetic Shock Resistance Resistance To Demagnetization Gap Distance** & Gauss Level @ 25°C† 0,25 0,76 1,27 2,54 3,81 5,08 .010 .030 .050 .100 .150 .200 Catalog Listing Alnico V Cast Good –40 to 300°C Poor Fair 1460 1320 1170 810 575 420 101MG3 Alnico VIII Sintered Good –40 to 250°C –40 to 140°C – 40 to 140°C Good Excellent 1050 900 470 295 195 7800 7800 7800 750 550 375 101MG7 102MG11 102MG15 107MG1*** Alnico VI Sintered Good –40 to 250°C Good Good 730 550 410 205 115 75 101MG2L1 Indox 1 Pressed Good 0 to 100°C Good Excellent 700 520 375 175 85 45 105MG5R2 105MG5R4 Rare Earth Pressed Poor –40 to 250°C Good Excellent 1110 2900 2620 2620 630 1400 2100 2100 365 850 1600 1600 120 260 940 940 55 130 550 550 25 70 350 350 103MG5 103MG6 103MG8 106MG10 Material and Process 755 * Magnet will not be damaged over temperature range. ** Gap distance from sensing surface. *** Measurement device saturated @ 800 gauss. †milliTesla = Gauss × 10-1 PDFINFO p a g e - 0 2 6 26 Honeywell ɀ Sensing and Control ɀ 1-800-537-6945 USA ɀ ⍣1-815-235-6847 International ɀ 1-800-737-3360 Canada