The **LP4-EE-1-R-B-N-R-Y** is a specific part number for a push-button switch manufactured by **E-Switch**. This component belongs to the LP4 series, which features right-angle, illuminated, latching switches commonly used in audio/visual equipment and instrumentation. --- ### Part Number Breakdown To understand the electronic and mechanical characteristics, we can decode the suffix codes: | Code Segment | Feature | Description | | :--- | :--- | :--- | | **LP4** | Series | Right-angle, high-travel push button switch | | **EE** | Function | Latching (Push-on, push-off) | | **1** | Housing Style | Standard housing design | | **R** | Actuator Color | Red button/cap | | **B** | Bushing Style | Non-threaded / Standard | | **N** | Terminal Type | PC Board Pin (Through-hole) | | **R** | LED 1 Color | Red LED illumination | | **Y** | LED 2 Color | Yellow LED illumination (Bi-color) | --- ### Technical Specifications The electrical performance and physical constraints are critical for PCB integration: #### 1. Electrical Ratings * **Current Rating:** 100mA @ 30VDC * **Contact Resistance:** 50mΩ Max (initial) * **Insulation Resistance:** 100MΩ Min @ 500VDC * **Dielectric Strength:** 500VAC for 1 minute #### 2. Mechanical Properties * **Actuation Force:** 150 ± 50 gf * **Travel Distance:** Total travel is approximately 3.0mm; Latching travel is ~2.0mm. * **Mechanical Life:** 50,000 cycles minimum. #### 3. Illumination (LEDs) This specific model is a **Bi-color** LED version. * **LED 1 (Red):** Forward Voltage approx. 1.95V - 2.5V. * **LED 2 (Yellow):** Forward Voltage approx. 2.0V - 2.5V. * *Note: Current limiting resistors must be added externally to prevent burning out the LEDs.* --- ### Key Applications Due to its right-angle mounting and tactile feedback, this part is frequently found in: * **Telecommunications:** Signal routing and power toggles. * **Audio/Visual:** Mixing consoles and rack-mount effect units. * **Industrial:** Control panels requiring visual status feedback (Red/Yellow states). * **Test Equipment:** Multi-meter or oscilloscope function selection. ---