MS-212 Ultra-miniature Cylindrical Sensor
Features
10W Contact Rating. Normally Open contact. Two sensitivity bands. Sputtered Ruthenium Contact.
Benefits
Omni-polar. Does not require power for operation. RoHS Compliant. Not ESD Sensitive. Various Cables and Connectors Available.
Description
These ultra-miniature cylindrical magnet sensors are suitable for low level switching applications, and have a size advantage over the other cylindrical sensors. Various activating distances are available depending on the magnet and the AT band used. This sensor can be supplied with non-standard connectors on request. All sensors are tested 100% for operate and release AT, Contact Resistance and Variable Contact Resistance before packing. Cylindrical sensors can be used in pneumatic cylinder end position sensing applications. Being an omni-polar device, this sensor can be actuated with either a north pole or a south pole or both. Choosing the right AT band, magnet strength, and operating axis, will restrict the number of operates and releases to one.
Cylindrical and Rectangular Magnets
![]() | We offer a range of magnets in different sizes and shapes, specially selected to...Continue reading |
Actuation Distances for MS-212 Cylindrical Sensor
![]() | Operate and release distances for the MS-212 ultra-miniature cylindrical sensor in the two standard...Continue reading |
Electrical
Contact Form | A | |
Contact Rating (max) | W/VA | 10.0 |
Switching Current (max) | A | 0.5 |
Carry Current (max) | A | 0.50 |
DC Switching Voltage (max) | VDC | 100 |
Breakdown Voltage (min) | VDC | 150 |
Contact Resistance (max) | mΩ | 200 |
Insulation Resistance (min) | Ω | 109 |
Capacitance (typ) | pF | 0.2 |
Miscellaneous
Operate Time (max) | ms | 0.35 |
Bounce Time (max) | ms | 0.30 |
Release Time (max) | ms | 0.15 |
Resonance Frequency (typ) | Hz | >2000 |
Operating Frequency (max) | Hz | 500 |
Operating Temperature Range | °C | -40 to +140 |
Shock Resistance (½Sin wave for 11ms) | G | 30 |
Vibration Resistance (10-2000 Hz) | G | 20 |
Ordering Code
MS-212-(Operate Band Code)-(Cable Length in mm)-(Cable Termination Code)
Operate Band Code | ||
1 | AT | 10-15 |
2 | AT | 15-20 |
Cable Termination Code | Termination Type |
S | Stripped to 5.0 mm |
T | Stripped and Tinned |
Example: MS-212-1-500-T denotes MS-212 Magnet Sensor in 10-15 Operate Band (AT), with 500 mm cable length and Tinned Cable ends.
Other Special Configurations: Lower Static Contact Resistance, Dynamic Contact Resistance Limit, Special Release Limits.
Usage Notes
Here are some of the recommended usage notes to ensure maximum durability of this product. The complete usage notes are available here.
Ampere Turn Selection
![]() | For any application, it is important to select the correct Ampere Turn (AT) or...Continue reading |
Effects of Temperature
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Product Handling
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Ferro-magnetic parts
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Cable Handling
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Reed Contact Protection Circuits
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Applications
Although we can never restrict the use of a reed sensor to a particular field, the following is a list of some of the applications that the MS-212 Magnet Sensor is known to perform well.
Reed sensors for detecting Ignition Key
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Reed Sensors in Pediatric Feeding tubes
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Reed Sensors in Hotel Security Card Readers
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Reed sensors in Automobile Sun Visors
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Reed switches in Lightsabers
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Reed sensors to control Automobile Sun-roofs
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Magnet sensors in Musical Greeting Cards
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Reed sensors in Radio-controlled Gliders and model Airplanes
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Reed switches and Reed sensors in Lap counter in slot car racing tracks
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Reed switches and Reed sensors in Spirometers
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Miniature Reed sensors in activating Dentist’s Drill
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