The **IRS080-R55VF40** is a specific infrared (IR) sensor module, typically categorized as a PIR (Passive Infrared) or a specialized optical sensor assembly used for motion detection or object sensing. --- ### 1. Component Specifications Below are the general technical parameters associated with this series of sensors: | Parameter | Specification | | :--- | :--- | | **Component Type** | Passive Infrared (PIR) Sensor / IR Receiver | | **Supply Voltage (Vcc)** | 3.0V - 5.5V DC (Typical) | | **Operating Current** | < 100 µA (Low power consumption) | | **Center Frequency** | 38 kHz - 40 kHz (Typical for IR modulated signals) | | **Detection Angle** | 100° - 120° (Conical) | | **Operating Temperature** | -20°C to +70°C | --- ### 2. Key Electronic Features #### A. Internal Pyroelectric Element The "IRS" prefix usually denotes an integrated sensor. It contains a pyroelectric ceramic element that generates an electric charge when exposed to infrared radiation (heat) emitted by the human body. #### B. Integrated Circuit (IC) Processing Unlike basic IR transistors, this module includes: * **High-gain Amplifier:** To boost the micro-volt signals from the sensor element. * **Band-pass Filter:** To limit interference from sunlight or ambient lighting. * **Voltage Regulator:** Ensures stable performance across varying battery levels. #### C. Optical Lens (VF40 Designation) The "VF40" suffix often refers to the **Fresnel Lens** configuration. This plastic cover focuses IR radiation onto the sensor element and defines the detection pattern (the range and width of the "vision" field). --- ### 3. Pin Configuration (Typical) Most sensors in this package format utilize a 3-pin interface: | Pin Number | Name | Function | | :--- | :--- | :--- | | 1 | **VCC** | Power Supply (Positive) | | 2 | **OUT** | Signal Output (Digital High/Low or Analog) | | 3 | **GND** | Ground (Negative) | --- ### 4. Common Applications * **Security Systems:** Intrusive motion detection. * **Smart Lighting:** Automatic "on/off" switches for hallways or closets. * **Consumer Electronics:** Remote control signal reception or "wake-on-approach" features. * **IoT Devices:** Low-power occupancy sensing for smart homes. ---