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.
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
 | We offer a range of magnets in different sizes and shapes, specially selected to...Continue reading |
Actuation Distances for MS-104 Reed Sensors
 | Operate and release distances for the MS-104 reed sensor in the three standard AT...Continue reading |
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...Continue reading |
Product Handling
 | Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro...Continue reading |
Reflow Soldering
 | Reflow Soldering is the process of automatically soldering multiple devices to a PCB. Continue...Continue reading |
Manual Soldering
 | Manual Soldering of reed switch leads may be required when using custom plastic housing...Continue reading |
Ferro-magnetic parts
 | Using Ferro-magnetic mounting parts or screws within a 100 mm vicinity of a reed switch will...Continue reading |
Reed Contact Protection Circuits
 | When a reed switch is to be connected to an inductive load or a...Continue reading |
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 tracks usually count the number of laps by having a small...Continue reading |
Reed switches in Model Train Tracks
 | Reed Switches are placed under train tracks near a junction and each train is...Continue reading |
Reed switches in LEGO Sensors
 | Reed Switches can be built into LEGO bricks to sense position and rotation. Position...Continue reading |
Reed switches in Washing machine vibration detection
 | Reed Switches are used for building bi-directional vibration sensors. These sensors can detect if...Continue reading |
Reed sensors in Electric Toothbrushes
 | Electric toothbrushes use Reed Sensors to sense change in direction when switching from the...Continue reading |
Reed switches in Domestic Coffee Machines
 | Domestic coffee machines use a solenoid to fill up the water reservoir whenever needed....Continue reading |
Reed switches and Reed sensors in Wireless Microphones
 | In wireless microphones and radio transmitters, unnecessary speaker crackle can be avoided at the...Continue reading |