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R2B-S NC SMD Reed Sensor SMD Package, Form B, Normally closed
Molded with internal blades parallel to SMD feet All dimensions in mm
Does not require power for operation Normally closed (NC) form B contact Polarity sensitive Molded with internal blades parallel to SMD feet Packed in tape and reels conforming to IEC-60286-3 norms Lead (Pb) free and RoHS compliant Applications This reed sensor is suitable for use in the following applications and many others: telephone hook switches, fluid tank cap sensing, emergency lamps... Specification Contact Form Contact Rating (max) Switching Current (max) Carry Current (max) Switching Voltage (max) Breakdown Voltage (min) Initial Contact Resistance (max) Operating Temperature Shock Resistance (1/2Sin wave for 11ms) Vibration Resistance (10-2000Hz) Ordering Code R2B-S-(Release AT Code) RAT Code 0 1 2 *Indicate Operate AT band
W / VA A A VDC VDC m C g g
B 10 0.5 1.5 180 200 150 -20 to +100 30 20
*Before *After Re-closure (min) 05 - 10 10 - 22 70 10 - 15 20 - 32 100 15 - 20 30 - 42 130 before and after modification of leads
Example R2B-S-1 denotes 10-15 release AT.
Due to continual improvement, specifications are subject to change without notice
www.reed-sensor.com
1 February 2008
Reed Relays and Electronics India Limited info@reed-switch.com Tel 91-44-6528-4022
R2B-S NC SMD Reed Sensor Actuation Distances
Release, operate and re-closure distances for the R2B-S normally closed SMD reed sensor in the three 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.
R2B-S-0 (05-10 AT) Actuation Sketch
Magnet NDR-T NDC-T NDR-S NDC-S NDR-M NDC-M NDR-L NDC-L
Dimensions 4.0 x 1.5 x 1.5 O2.0 x 4.0 6.0 x 2.5 x 2.5 O3.0 x 7.0 8.0 x 3.0 x 3.0 O4.0 x 10.0 19.0 x 4.0 x 4.0 O8.0 x 15.0
Release Distance 3.5 - 7.0 4.0 - 7.5 8.0 - 12.5 10.0 - 15.0 11.5 - 17.5 15.0 - 22.0 21.0 - 31.5 30.0 - 45.0
Operate Distance 4.0 - 7.5 5.0 - 8.0 10.0 - 14.0 11.0 - 16.0 13.0 - 19.0 17.0 - 23.0 23.5 - 34.0 34.0 - 48.0
Re-closure Zone < 0.5 < 1.0 < 3.5 < 4.5 < 5.5 < 7.0 < 8.0 < 15.0
R2B-S-1 (10-15 AT) Actuation Sketch
Magnet NDR-T NDC-T NDR-S NDC-S NDR-M NDC-M NDR-L NDC-L
Dimensions 4.0 x 1.5 x 1.5 O2.0 x 4.0 6.0 x 2.5 x 2.5 O3.0 x 7.0 8.0 x 3.0 x 3.0 O4.0 x 10.0 19.0 x 4.0 x 4.0 O8.0 x 15.0
Release Distance 2.0 - 4.0 2.5 - 5.0 6.5 - 9.0 8.0 - 10.5 9.5 - 12.5 12.0 - 16.0 17.0 - 21.5 26.0 - 32.0
Operate Distance 2.5 - 4.5 3.0 - 5.5 7.0 - 10.0 9.0 - 11.0 10.0 - 13.5 13.0 - 17.0 18.0 - 23.0 27.0 - 33.0
Re-closure Zone < 0.5 < 1.0 < 3.0 < 3.5 < 4.5 < 5.0 < 7.0 < 12.0
R2B-S-2 (15-20 AT) Actuation Sketch
Magnet NDR-T NDC-T NDR-S NDC-S NDR-M NDC-M NDR-L NDC-L
Dimensions 4.0 x 1.5 x 1.5 O2.0 x 4.0 6.0 x 2.5 x 2.5 O3.0 x 7.0 8.0 x 3.0 x 3.0 O4.0 x 10.0 19.0 x 4.0 x 4.0 O8.0 x 15.0
Release Distance 1.5 - 2.5 2.0 - 3.0 5.0 - 7.0 6.5 - 8.5 8.0 - 10.0 10.0 - 12.5 14.5 - 18.0 22.0 - 26.5
Operate Distance 2.0 - 3.0 2.5 - 3.5 5.5 - 8.0 7.0 - 9.5 8.5 - 11.0 10.5 - 14.0 15.0 - 19.0 22.5 - 28.5
Re-closure Zone < 0.5 < 1.0 < 2.5 < 3.0 < 4.0 < 5.0 < 6.0 < 10.0
Due to continual improvement, specifications are subject to change without notice
www.reed-sensor.com
20 January 2009
Reed Relays and Electronics India Limited info@reed-switch.com Tel 91-44-6528-4022

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