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12mm Reed Switch/Sensor
12mm Reed Switch/Sensor
The 12mm reed switch/sensor is an electrical switch operated by an applied magnetic field. The reed switch contains a pair (or more) of magnetizable, flexible, metal reeds whose end portions are separated by a small gap when the switch is open. The reeds are hermetically sealed in opposite ends of a tubular glass envelope.
When the device is exposed to a magnetic field, the two ferrous pins inside the switch pull together and the switch closes. When the magnetic field is removed, The Reed Switch separates and the switch opens. This makes for a great non-contact switch. This switch can carry up to 1.2A.
Applications:
- Home and office automation.
- Door or windows sensor as a burglar alarm.
Package Includes:
- 1 x 12mm Reed Switch
Specifications:
| Maximum Voltage(V) | 24V DC |
| Maximum Operating Current (A) | 1.2 |
| Frequency(Hz) | 100 |
| Mech. & Electrical Lifecycle | ≈ 100,000 |
| Contact Resistance | 20mΩ |
| Insulation Resistance (MΩ) | 100 |
| Operating Temperature Range (°C) | -50 to 140 °C |
| Dimensions | 12x2x1mm |
| Weight | 1 |
1.What is a 12mm Reed Switch/Sensor used for?
- A 12mm Reed Switch/Sensor is a type of switch that uses a magnetic field to close or open an electrical circuit. It's commonly used in security systems, home automation, and other applications where the presence or absence of a magnetic field needs to be detected.
How does a 12mm Reed Switch/Sensor work?
- A Reed Switch/Sensor is composed of a sealed glass tube containing two or more ferromagnetic metal reeds. When a magnetic field is brought near the reed switch, the reeds align themselves with the field and the switch closes, completing an electrical circuit. When the magnetic field is removed, the reeds return to their original position and the switch opens, breaking the circuit.
What is the main advantage of using a 12mm Reed Switch/Sensor over other types of switches?
- The main advantage of using a Reed Switch/Sensor over other types of switches is that it can be operated remotely by a magnetic field, without any physical contact. This makes it useful for applications where it's not possible or desirable to have physical contact with the switch, such as in harsh environments or in places where contamination or wear is a concern. Additionally, reed switches are known for their high reliability and long lifespan.