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 Bar 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.
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
 | Effects of increase and decrease in temperature on reed based products and magnets. Continue...Continue reading |
Product Handling
 | Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro...Continue reading |
Ferro-magnetic parts
 | Using Ferro-magnetic mounting parts or screws within a 100 mm vicinity of a reed switch will...Continue reading |
Cable Handling
 | Cables with higher strands should be used so that there is minimal work hardening...Continue reading |
Reed Contact Protection Circuits
 | When a reed switch is to be connected to an inductive load or a...Continue reading |
Other Special Configurations
Non standard lead formations
Dynamic Contact Resistance Limit
Special Release AT Limits
Gold plated leads
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
 | As long as the ignition key detecting reed sensor is not actuated means that...Continue reading |
Reed Sensors in Pediatric Feeding tubes
 | To know the location of the end of a feeding tube, tiny reed switches...Continue reading |
Reed Sensors in Hotel Security Card Readers
 | In most hotels, the simplest method for a guest to enter a room is...Continue reading |
Reed sensors in Automobile Sun Visors
 | A reed sensor and a magnet is used in the sliding mirror assembly to...Continue reading |
Reed switches in Lightsabers
 | Reed Switches are used in Lightsabers to for power up only when the owner...Continue reading |
Reed sensors to control Automobile Sun-roofs
 | An automotive sun-roof, usually made of tinted glass, is a movable panel that can...Continue reading |
Magnet sensors in Musical Greeting Cards
 | Ultra miniature reed switches can be used in electronic greeting cards with magnets to...Continue reading |
Reed sensors in Radio-controlled Gliders and model Airplanes
 | Reed Sensors are very light devices and can be used in model airplanes, helicopters...Continue reading |
Reed switches and Reed sensors in Lap counter in slot car racing tracks
 | Slot car racing tracks usually count the number of laps by having a small...Continue reading |
Reed switches and Reed sensors in Spirometers
 | Reed Switches help measure the volume of air intake and the time in a...Continue reading |
Miniature Reed sensors in activating Dentist’s Drill
 | A reed sensor finds the perfect application in such a drill, to work as...Continue reading |