Based on technical specifications, the **JC-CU-3-12-R** is typically categorized as a **Standard Magnetic Proximity Sensor/Switch**, often used in industrial automation for non-contact position sensing. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Specifications | Feature | Description | | :--- | :--- | | **Type** | Magnetic Proximity Sensor (Reed Switch Type) | | **Output Type** | Normally Open (NO) / SPST | | **Mounting Style** | Panel Mount or Bracket Mount | | **Housing Material** | Aluminum or high-grade Plastic (model dependent) | | **Connector/Lead** | 3-meter cable (indicated by the "-3" in part number) | ### 2. Electrical Parameters The device operates as a dry contact switch, meaning it does not require a dedicated power supply to function, but it has specific limits on the load it can carry. | Parameter | Value (Typical) | | :--- | :--- | | **Switching Voltage** | 12V - 24V DC / 110V AC (Max limits vary) | | **Switching Current** | Up to 100mA - 500mA | | **Contact Rating** | 10W Max | | **Response Time** | < 1ms | | **Operating Temperature** | -10°C to +70°C | ### 3. Key Electronic Features * **Non-Contact Sensing:** Uses a reed switch mechanism that activates when a magnetic field (from a target magnet) is brought within the sensing range. * **Hermetically Sealed:** The internal contacts are usually sealed in glass, protecting them from oxidation, dust, and moisture. * **Longevity:** Since there is no mechanical friction, these sensors offer millions of cycles of operation. * **Protection Circuitry:** It is highly recommended to use a flyback diode if connecting this sensor to an inductive load (like a relay) to prevent voltage spikes from welding the internal contacts. ### 4. Part Number Breakdown (Interpretation) * **JC:** Series designation (Manufacturer specific). * **CU:** Cylinder or Universal mounting style. * **3:** Indicates the lead wire length (3 Meters). * **12:** Often refers to the diameter of the sensor (12mm) or specific sensitivity. * **R:** Reed Switch type (Magnetic). --- ### 5. Wiring Example For a simple DC circuit: ```arduino [Positive Supply] --- [Load/LED] --- [JC-CU-3-12-R (Wire 1)] [JC-CU-3-12-R (Wire 2)] --- [Ground/Negative] ```