The part number **LP4OA1RWCNN** refers to a specific configuration of a **Low-Profile (LP4 Series) Pushbutton Switch**, typically manufactured by companies like **E-Switch**. These components are widely used in panels where space is limited and a tactile, latching, or momentary action is required. ### 1. Part Number Breakdown To understand the electronic and mechanical properties, we can deconstruct the identifier: | Segment | Code | Description | | :--- | :--- | :--- | | **Series** | `LP4` | Low Profile Pushbutton Switch | | **Circuit** | `OA` | DPDT (Double Pole, Double Throw) - Alternate Action (Latching) | | **Housing** | `1` | Round Housing Style | | **Actuator** | `R` | Round Actuator Shape | | **Illumination** | `W` | White LED Illumination | | **Cap Style** | `CN` | Clear Cap with No Graphic | | **Terminal** | `N` | PC Pin Termination (Through-hole) | --- ### 2. Technical Specifications The electrical characteristics are critical for determining circuit compatibility. * **Contact Rating:** Typically 100mA @ 30VDC. * **Circuitry:** **DPDT** (Double Pole Double Throw). This means it can control two separate circuits simultaneously, switching each between two different output paths. * **Operating Function:** **Latching** (Push-on, push-off). The switch stays in its new position until pressed again. * **Illumination:** Integrated **White LED**. Note that LEDs usually require a current-limiting resistor (not built into the switch). * **Contact Resistance:** 50mΩ Max (initial). * **Insulation Resistance:** 100MΩ Min @ 500VDC. * **Dielectric Strength:** 500VAC for 1 minute. --- ### 3. Mechanical & Physical Features The "Low Profile" designation makes it ideal for sleek interface designs. * **Travel:** Full travel is approximately 3.0mm. * **Actuation Force:** Usually around 150 - 250 grams. * **Mounting:** Through-hole PCB mounting. * **Durability:** Rated for approximately 50,000 cycles. --- ### 4. Typical Applications Due to its DPDT configuration and illumination, this part is commonly found in: 1. **Audio/Visual Equipment:** Channel switching or power toggles. 2. **Instrumentation:** Mode selection on medical or industrial devices. 3. **Telecommunications:** Network hardware reset or toggle buttons. 4. **Consumer Electronics:** High-end appliances requiring a tactile, illuminated interface. ---