The **LP2W-26S-R-Z** is a high-performance, illuminated pushbutton switch manufactured by **Nidec Components** (formerly Copal Electronics). It belongs to the LP series, designed specifically for use in professional video switching equipment, broadcast consoles, and industrial control panels. ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Circuitry** | DPDT (Double Pole Double Throw) | | **Switch Function** | Momentary (Non-locking) | | **Contact Rating** | 3VA (Max 28V DC / 100mA) | | **Illumination** | Dual LED (Red/Green or similar configurations) | | **Mounting Type** | Through-hole (PC terminal) | | **Actuator Style** | Square, Large Cap | | **Operating Force** | 2.0 ± 1.0 N | --- ### 2. Functional Electronic Components The device integrates several critical electronic and mechanical elements into a single housing: #### A. The Switching Mechanism * **Gold-Plated Contacts:** Because this switch is rated for low-current applications (up to 100mA), it utilizes gold plating to prevent oxidation and ensure high contact reliability over its lifespan. * **DPDT Logic:** This allows the switch to control two separate circuits simultaneously. For example, one pole can trigger a logic signal in a microcontroller, while the other pole triggers an external indicator or tally light. #### B. Illumination System * **Internal LEDs:** The "R" in the part number typically denotes the color configuration (often Red or a combination). * **Independent LED Circuits:** The LEDs are electrically isolated from the switch contacts. This means the lighting can be controlled by the system's software (e.g., to indicate "On-Air") regardless of whether the button is currently being pressed. #### C. Termination and Layout * **PCB Terminals:** The pins are spaced for standard PCB mounting. * **Short Stroke:** Designed for a "tactile" yet smooth feel, common in high-speed data entry or broadcast switching environments. --- ### 3. Pinout and Connection Logic While specific pin numbers depend on the datasheet diagram, the electronic layout generally follows this structure: ```text Pin 1-3: Pole A (Common, NO, NC) Pin 4-6: Pole B (Common, NO, NC) Pin L1-L2: LED 1 Anode/Cathode Pin L3-L4: LED 2 Anode/Cathode ``` --- ### 4. Typical Applications * **Broadcast Video Switchers:** Used as "Bus" buttons for selecting video sources. * **Audio Mixing Consoles:** Used for Mute or Solo functions. * **Industrial Automation:** High-reliability human-machine interfaces (HMI).