The part number **LP4-EE-1-R-W-C-B-R** refers to a specific configuration within the **LP4 series** of illuminated pushbutton switches, typically manufactured by companies like **E-Switch**. These switches are known for their right-angle mounting and high-visibility LED illumination, often used in consumer electronics, audio/visual equipment, and instrumentation. --- ### Part Number Breakdown The following table breaks down the technical specifications based on the standard naming convention for this series: | Segment | Code | Description | | :--- | :--- | :--- | | **Series** | LP4 | Low profile, illuminated pushbutton switch | | **Function** | EE | Latching (Push-on, Push-off) | | **Terminal** | 1 | PC pin (Through-hole mounting) | | **Mounting** | R | Right-Angle orientation | | **Cap Style** | W | Square Cap (usually with a specific height/shape) | | **Cap Color** | C | Clear (Transparent) | | **LED 1 Color** | B | Blue | | **LED 2 Color** | R | Red | --- ### Technical Specifications The LP4 series generally follows these electrical and mechanical parameters: * **Contact Rating:** 100mA @ 30VDC * **Circuitry:** DPDT (Double Pole, Double Throw) * **Contact Resistance:** 50m$\Omega$ max (initial) * **Insulation Resistance:** 100M$\Omega$ min @ 500VDC * **Dielectric Strength:** 500VAC for 1 minute * **Operating Force:** ~200 gf * **Travel:** Full travel 3.30mm; Lock travel 2.50mm --- ### Key Features and Applications 1. **Dual LED Illumination:** The "B-R" suffix indicates a bi-color setup (Blue and Red). This allows the switch to provide visual feedback for different states (e.g., Blue for Standby, Red for Active). 2. **Right-Angle Design:** The "R" mounting style allows the switch to be mounted perpendicular to the PCB, making it ideal for front-panel interfaces where the PCB is horizontal. 3. **Latching Mechanism:** Unlike momentary switches, the "EE" function stays in the down position until pressed again, which is essential for power toggles or mode selection. ### Common Usage * **Audio Mixers:** For channel mutes or solo buttons. * **Test Equipment:** For power or range selection. * **Telecommunications:** For line switching or status indication. ---