The part number **LP4-EE-1-R-G-N-T-R** typically refers to a high-quality, illuminated push-button switch manufactured by **E-Switch** (LP4 series). This series is commonly used in audio/visual equipment, instrumentation, and telecommunications due to its compact size and various illumination options. --- ### 1. Part Number Breakdown The suffixing identifies specific physical and electrical characteristics of the switch: | Segment | Code | Description | | :--- | :--- | :--- | | **Series** | **LP4** | LP4 Series Illuminated Pushbutton | | **Circuit** | **EE** | DPDT (Double Pole Double Throw) Latching | | **Actuator** | **1** | Round Cap style | | **LED 1** | **R** | Red LED (Position 1) | | **LED 2** | **G** | Green LED (Position 2) | | **Housing** | **N** | Non-black (usually Transparent/Translucent) | | **Terminal** | **T** | PC Pin (Through-hole mounting) | | **Cap Color** | **R** | Red Cap | --- ### 2. Technical Specifications The electrical and mechanical parameters for this component are as follows: * **Switching Function:** Latching (Push-on, Push-off). * **Contact Rating:** 100mA @ 30VDC. * **Contact Resistance:** 50m$\Omega$ Max (initial). * **Insulation Resistance:** 100M$\Omega$ Min @ 500VDC. * **Dielectric Strength:** 500VAC for 1 minute. * **Operating Life:** 50,000 cycles. * **Operating Temperature:** -20°C to +70°C. * **Travel:** Full travel is approximately 3.0mm. --- ### 3. Key Features 1. **Dual LED Illumination:** This specific model features a bi-color setup (Red and Green). The LEDs are independent of the switch circuit, allowing the designer to program lighting behavior via the PCB. 2. **DPDT Configuration:** The "EE" designation indicates a Double Pole Double Throw setup, meaning it can control two separate circuits simultaneously. 3. **Right Angle/Vertical Options:** While this specific part is a standard through-hole (T), the LP4 series is known for its stability on PCB layouts. --- ### 4. Typical Applications * **Audio Mixers:** For muting or channel selection. * **Medical Equipment:** On/Off toggles with visual status indicators. * **Consumer Electronics:** Power buttons requiring color-coded feedback (e.g., Green for "On", Red for "Standby"). * **Test & Measurement:** Mode selection in hand-held or benchtop units.