The **LP4-EE-1-R-G-B-G-R** is a specific part number for a high-quality, illuminated pushbutton switch, typically manufactured by companies like **E-Switch** (LP4 series). This component is known for its multi-LED illumination capabilities and recessed square button design. ### 1. Part Number Breakdown The nomenclature defines the physical and electrical characteristics of the switch: | Segment | Code | Description | | :--- | :--- | :--- | | **Series** | LP4 | Low profile, illuminated pushbutton switch | | **Function** | EE | Latching (Push-on, Push-off) | | **Circuit** | 1 | Single Pole Double Throw (SPDT) | | **Illumination** | R-G-B-G-R | RGB LED configuration (Red, Green, Blue, Green, Red) | --- ### 2. Technical Specifications The LP4 series is designed for control panels and user interfaces where visual feedback is critical. | Feature | Specification | | :--- | :--- | | **Contact Rating** | 100mA @ 30VDC | | **Operating Life** | 50,000 Cycles | | **Contact Resistance** | 50mΩ Max (Initial) | | **Insulation Resistance** | 100MΩ Min @ 500VDC | | **Dielectric Strength** | 500VAC for 1 minute | | **Operating Temperature** | -20°C to +70°C | | **Actuation Force** | 200 ± 50 grams | --- ### 3. Key Electronic Components #### A. The Switching Mechanism (Latching) The "EE" designation indicates a **latching mechanism**. Unlike a momentary switch (which returns to its original position as soon as you let go), this switch stays in the "down" or "active" position until pressed a second time. This is used for "Power" buttons or mode selection. #### B. LED Configuration (RGB) The **R-G-B-G-R** indicates a multi-LED setup within the switch housing. * **Multiple Pins:** The switch will have additional pins on the bottom specifically for the LED anodes and cathodes. * **Color Mixing:** Depending on how you wire the LEDs, the switch can glow in distinct colors or mix colors (e.g., Red + Blue = Purple) to indicate different device states (e.g., Standby, Error, Active). #### C. Contacts and Terminals * **SPDT (Single Pole Double Throw):** This means the switch has one common terminal and can switch between two different output paths. * **Terminal Type:** Usually features PC Board (PCB) pin terminals for direct mounting to a circuit board. --- ### 4. Typical Applications Because of its multi-color LED feedback and latching function, it is commonly found in: * **Audio/Video Equipment:** Channel selection or mute buttons. * **Industrial Controls:** Status indicators (Green for OK, Red for Fault). * **Test and Measurement:** Mode selection with visual confirmation. * **Medical Devices:** Power and function toggles. ---