The **LP4-OA-1-R-G-C-Y-R** is a specific part number for a multi-color, illuminated pushbutton switch, likely manufactured by **E-Switch** or a similar industrial component provider. This component belongs to the LP4 series, which is characterized by its square-faced design and right-angle mounting. --- ### 1. Part Number Breakdown The alphanumeric code identifies the specific mechanical and electrical characteristics of the switch: | Segment | Code | Description | | :--- | :--- | :--- | | **Series** | LP4 | Square, right-angle illuminated pushbutton switch. | | **Circuit** | OA | Momentary DPDT (Double Pole Double Throw). | | **Housing** | 1 | Standard housing/mounting style. | | **LED 1** | R | Red LED (Primary). | | **LED 2** | G | Green LED (Secondary). | | **Cap Style** | C | Square concave cap shape. | | **Cap Color** | Y | Yellow/Transparent Yellow cap. | | **Legend** | R | Specific legend or marking (or Revision code). | --- ### 2. Electrical Specifications These switches are generally designed for low-power signal switching or logic-level interfacing rather than high-voltage power applications. * **Contact Rating:** Typically 100mA @ 30VDC. * **Contact Resistance:** 50mΩ Max (initial). * **Insulation Resistance:** 100MΩ Min @ 500VDC. * **Dielectric Strength:** 500VAC for 1 minute. * **Operating Life:** Approximately 50,000 cycles. --- ### 3. Key Components & Materials #### Mechanical Structure * **Actuator:** The concave square cap (Yellow) provides ergonomic feedback for the user's fingertip. * **Terminals:** Silver-plated brass terminals designed for PCB through-hole mounting. * **Housing:** High-temperature PBT or Nylon to withstand soldering processes. #### Illumination (The "R-G" Factor) This switch features **dual-LED illumination**. * It contains both a Red and a Green LED within the body. * Depending on the wiring, the switch can glow Red, Green, or Amber (if both are powered simultaneously). #### Switching Logic (DPDT) The **Double Pole Double Throw (DPDT)** configuration means the switch controls two separate circuits simultaneously. Each circuit has one input and two possible outputs (though "Momentary" means it only stays in the "triggered" state while pressed). --- ### 4. Technical Drawing Concept ```text [ CAP: YELLOW ] | | | ( LEDs ) | <--- Red/Green Internal |_____________| | | [ TERMINAL PINS ] (Right-Angle Config) ``` --- ### 5. Common Applications * **Audio/Visual Equipment:** Channel toggles or mute buttons. * **Telecommunications:** Network status indicators. * **Industrial Controls:** Mode selection with visual feedback. * **Test & Measurement:** Power/Reset buttons with bicolor status.