The **S03-R10** typically refers to a high-precision, industrial-grade **PIR (Passive Infrared) Motion Sensor Module** or a specific **Limit Switch/Position Sensor** variant depending on the manufacturer (most commonly associated with automated door systems or security electronics). Below is a breakdown of the electronic components and specifications typical for this part. --- ### 1. Technical Specifications The S03-R10 is designed for stability and sensitivity. Its core electronics manage signal amplification and noise reduction. | Feature | Specification (Typical) | | :--- | :--- | | **Operating Voltage** | DC 12V - 24V | | **Current Consumption** | < 50mA | | **Detection Range** | 3 - 10 Meters (Adjustable) | | **Output Type** | Relay Output (NO/NC) or Open Collector | | **Response Time** | < 0.5 Seconds | | **Operating Temp** | -20°C to +55°C | --- ### 2. Core Electronic Components The internal PCB of an S03-R10 module generally consists of the following stages: #### A. The Pyroelectric Sensor The "heart" of the module. It contains a crystalline material that generates an electric charge when exposed to infrared radiation (heat) from a human body. #### B. Fresnel Lens The plastic cover over the sensor. While not an electronic "part," it is an optical component that focuses IR energy onto the sensor, defining the 10-meter range. #### C. Signal Processing IC Usually a dedicated PIR controller (like the **BISS0001** or a proprietary MCU). * **Function:** Filters out "noise" (like sunlight or wind) and converts the tiny analog spikes from the sensor into a digital high/low signal. #### D. Potentiometers (Adjustable Resistors) There are usually two trimmers on the board: 1. **SENS (Sensitivity):** Adjusts the detection distance. 2. **TIME (Delay):** Adjusts how long the output stays active after motion stops. --- ### 3. Wiring and Pinout The R10 variant usually features a 4-pin or 5-pin terminal block for easy integration into control panels. | Pin Label | Function | Description | | :--- | :--- | :--- | | **V+ / VCC** | Power In | Connect to 12V-24V DC source. | | **GND / COM** | Ground | Common negative return. | | **NO / NC** | Switch Output | Normally Open or Normally Closed relay contact. | | **TAMPER** | Safety | (Optional) Signal sent if the casing is opened. | --- ### 4. Application Use Cases * **Automatic Doors:** Used as a trigger to open sliding glass doors in retail. * **Security Systems:** Acts as a zone trigger for burglar alarms. * **Industrial Automation:** Detects the presence of an operator near moving machinery for safety shutdowns. ---