Features
10W Contact Rating.
20.3 mm PCB Pitch.
Normally Open contact.
Two sensitivity bands.
Two Lead Formations.
Bulk Packed in Boxes.
📝 Description
The standard PCB mountable reed sensor MS-108 presented here is designed to handle currents of up to 1.5A, ensuring robust performance in electrical switching applications. Its internal blades are consistently aligned parallel to the sensor’s top surface, optimizing contact reliability and longevity over extended usage.
For enhanced versatility, change-over versions of the sensor can be custom-built upon request, catering to specific normally closed or dual circuit change over requirements and configurations. This flexibility allows engineers to tailor the sensor’s functionality to suit diverse application needs.
Prior to shipment, each sensor undergoes rigorous 100% testing to validate its performance across key parameters. This includes comprehensive testing for Operate AT (Actuation Time), Release AT, Static Contact Resistance, and Variable Contact Resistance. These tests ensure that every sensor meets stringent quality standards before it is packaged and dispatched, guaranteeing consistent and reliable operation in the field.
As an omni-polar device, this standard PCB mountable reed sensor is capable of activation by either a north pole, south pole, or both magnetic polarities, providing adaptability in magnet orientation. Engineers can optimize its performance further by selecting the appropriate AT band, magnet strength, and operating axis. This customization helps to refine the sensor’s response, limiting it to a single operate and release cycle per activation and thereby preventing unintended switching events.
Due to its standardized size and robust construction, this reed sensor is well-suited for integration into various electronic systems where reliable switching capabilities are essential. Whether deployed in industrial machinery, automotive electronics, or consumer appliances, its dependable performance and adaptable magnetic characteristics make it a preferred choice for engineers seeking efficient and durable switching solutions.
⚡️ Electrical
| Parameters | Unit | Values |
| 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
| Parameters | Unit | Values |
| 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)
| 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.
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🛠️ Usage Notes
Here are some of the recommended usage notes to ensure maximum durability of this product. The complete usage notes are available here.
🧰 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.
