MS-108 Standard Size PCB Mountable Reed Sensor
Features
10W Contact Rating. 20.3 mm PCB Pitch. Normally Open contact. Two sensitivity bands. Two Lead Formations. Bulk Packed in Boxes.
Description
This standard size PCB mountable reed sensor is manufactured to carry up to 1.5A. The internal blades always parallel to the top surface of the sensor. Change-over versions can also be built on request. All sensors are tested 100% for Operate AT, Release AT, Static 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-108 Reed Sensors
![]() | Operate and release distances for the MS-108 reed sensor in the three standard AT...Continue reading |
Electrical
Contact Form | A | |
Contact Rating (max) | W/VA | 10.0 |
Switching Current (max) | A | 0.5 |
Carry Current (max) | A | 1.50 |
DC Switching Voltage (max) | VDC | 180 |
Breakdown Voltage (min) | VDC | 200 |
Contact Resistance (max) | mΩ | 150 |
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-108-(Operate Band Code)
Operate Band Code | ||
1 | AT | 10-15 |
2 | AT | 15-20 |
3 | AT | 20-25 |
Example: MS-108-2 denotes MS-108 Reed Sensor in 15-20 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-108 Reed Sensor is known to perform well.
Reed Sensors to Prevent Thievery in Cargo Containers
![]() | Reed Sensors added to the GPS units serve as a theft proof device by...Continue reading |
Reed sensors for Tamper-proofing Electricity Meters
![]() | To tamper proof Electricity meters, Reed Sensors are placed near the front cover of...Continue reading |
Reed sensors in Wind Vanes
![]() | Eight reed switches are mounted radially at 22.5 degree angles making compass points on...Continue reading |
Reed sensors in Survival rafts and ELTs
![]() | Survival rafts contain water sensors which trigger the compressed air cylinder to inflate the...Continue reading |
Flow Meters for checking Lake currents
![]() | Reed Switches are used in flow meters to calculate volume of liquid. Flow meters...Continue reading |
Magnet sensors for Anchor, Rudder, and Hatch position detection
![]() | Just as reed sensors are used in automobiles for end position and intermediary position...Continue reading |
Reed sensors in Central Locking of Cars with Remote Keys
![]() | In newer cars with electronic keys, the key code is compared with onboard computer...Continue reading |
Reed switches in Instant Water heaters and Power showers
![]() | Instant Water heaters and power showers use reed switch based Flow switches to detect...Continue reading |
Magnet sensors for Tension Monitoring in Coil Winders
![]() | Reed Sensors find an important role in closed loop tension control and coil winding...Continue reading |
Magnet Sensors in Fluid Metering
![]() | To make an existing analog fluid meter generate digital output readings that can be...Continue reading |