MS-104 Ultra Miniature PCB Mountable Reed Sensor
Features
5W Contact Rating. 10.1 mm PCB Pitch. Normally Open contact. Two sensitivity bands. Two Lead Formations.
Benefits
Omni-polar. Does not require power for operation. Sputtered Ruthenium Contact. RoHS Compliant. Not ESD Sensitive.
Description
This ultra miniature PCB mountable reed sensor is designed for switching 10W. The internal blades always parallel to the top surface of the sensor. The sensors are tested 100% for operate and release AT, Contact Resistance and Variable Contact Resistance before packing. Being an omnipolar 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
 | Drawing of Cylindrical MagnetsDrawing of Rectangular Bar Magnets starFeaturesNdFeB High Energy. Nickel coated. Energized Continue reading Nov 18, 2020 |
Actuation Distances for MS-104 Reed Sensors
 | Operate and release distances for the MS-104 ultra-miniature reed sensor in the two standard AT bands when actuated with standard magnets Continue reading Oct 30, 2020 |
Electrical
| Contact Form | A | |
| Contact Rating (max) | W/VA | 5.0 |
| Switching Current (max) | A | 0.5 |
| Carry Current (max) | A | 0.5 |
| 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 | 0.10 |
| 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-104-(Operate Band Code)
| Operate Band Code | ||
| 1 | AT | 7-12 |
| 2 | AT | 12-17 |
Example: MS-104-1 denotes MS-104 Reed Sensor in 7-12 Operate Band (AT).
Other Special Configurations: Lower Static Contact Resistance, Dynamic Contact Resistance Limit, Special Release Limits, Gold plated leads.
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 magnetic sensitivity of a Reed Switch, Reed Sensor or Continue reading Aug 27, 2020 |
Product Handling
 | Reed Switch Handling Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro cracks in the glass Continue reading Aug 31, 2020 |
Reflow Soldering
 | Reflow Soldering is a process of automatically soldering multiple devices on a PCB. This is usually done after components are Continue reading Aug 28, 2020 |
Manual Soldering
 | Soldering of Reed Switches and Reed Sensors requires some care to ensure that these delicate devices are not inadvertently damaged. Damage Continue reading Nov 10, 2020 |
Ferro-magnetic parts
 | Reed Switches use an alloy of Nickel and Iron with a few other elements that make the alloy Ferro-magnetic and having a low Remanence. Continue reading Sep 4, 2019 |
Reed Contact Protection Circuits
 | It is assumed that the ideal reed switch load is a Resistive Load, but it is almost impossible to reduce any load to purely resistive. Continue reading Aug 31, 2020 |
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-104 Reed Sensor is known to perform well.
Reed switches and Reed sensors in Lap counter in slot car racing tracks
 | Slot Car Racing Slot car racing (also called slot racing) is a competitive hobby of racing with powered miniature autos which are Continue reading Nov 7, 2020 |
Reed switches in Model Train Tracks
 | Model Railway Today modelers create model railway layouts as a hobby, recreating real locations and periods throughout history. Railway Continue reading Nov 7, 2020 |
Reed switches in LEGO Sensors
 | Lego Mindstorms Lego Mindstorms is a hobby kit developed and manufactured by Lego for building programmable robots that use a Continue reading Nov 7, 2020 |
Reed switches in Washing machine vibration detection
 | Washing Machine Reed Switches are used in bi-directional vibration sensors. These sensors are used in Washing machines to detect Continue reading Nov 6, 2020 |
Reed sensors in Electric Toothbrushes
 | Electric Toothbrush Electric toothbrushes are designed to make the brush head and bristles move in rapid motions, either in a Continue reading Nov 6, 2020 |
Reed switches in Domestic Coffee Machines
 | Domestic Coffee Machine Coffee Machines brew coffee when the user adds water, coffee powder and milk. Intelligent coffee machines such Continue reading Nov 6, 2020 |
Reed switches and Reed sensors in Wireless Microphones
 | Wireless Microphone Wireless Microphones convert sound into electrical signal that can then be used by other sound equipment for Continue reading Nov 6, 2020 |