The **LPA-43P2W-R** is a specific model of an **LED Panel Indicator** or Status Light, typically manufactured by companies like **Lumex**. These components are used in industrial control panels, networking hardware, and electronic appliances to provide visual feedback to the user. --- ### 1. Technical Specifications Below is a breakdown of the typical electronic and physical characteristics of this part: | Feature | Specification | | :--- | :--- | | **Part Type** | LED Panel Mount Indicator | | **LED Color** | Red (Standard) | | **Lens Type** | Water Clear or Diffused (Model dependent) | | **Voltage Rating** | Typically 2.0V - 2.2V (requires resistor for higher DC) | | **Current Rating** | ~20mA (Standard Operating Current) | | **Mounting Type** | Panel Mount (Snap-in or Screw-on) | | **Termination** | Wire Leads (indicated by the "W" in the suffix) | --- ### 2. Key Electronic Components The device consists of three primary electronic sub-parts: 1. **The Light Emitting Diode (LED):** The core semiconductor that converts electrical energy into red light. 2. **Internal Wiring:** The "W" in the part number usually signifies **Wire Leads**. This means the part comes with pre-attached insulated copper wires (usually 24-26 AWG) for easy connection to a PCB or power source. 3. **Housing/Encapsulation:** A plastic or metal body that holds the LED in place. It often features a "Fresnel" lens design to help disperse the light evenly for better visibility from various angles. --- ### 3. Wiring and Integration To integrate the LPA-43P2W-R into a circuit, follow these electronic principles: * **Polarity:** Since it is an LED-based part, it is polarity sensitive. The red wire is typically the **Anode (+)** and the black wire is the **Cathode (-)**. * **Current Limiting:** If you are connecting this to a 12V or 24V system, you **must** use a current-limiting resistor in series to prevent the LED from burning out. * *Calculation:* $R = (V_{source} - V_{forward}) / I_{forward}$ * **Protection:** In AC applications, a rectifying diode is required to prevent reverse voltage breakdown. --- ### 4. Common Applications * **Network Switches:** Indicating power or data activity. * **Medical Equipment:** Status indicators for "Power On" or "Error." * **Industrial Panels:** Pilot lights for machinery states.