The **W2XT-4Z1Z1-R** is a specific part number typically associated with the **W2 Series** of miniature rocker switches manufactured by **NKK Switches**. These components are widely used in industrial controls, medical equipment, and telecommunications due to their compact size and reliability. --- ### 1. Part Number Breakdown Based on NKK's standard nomenclature for the W2 series, the code represents the following specifications: | Component Code | Description | Technical Details | | :--- | :--- | :--- | | **W2** | Series Name | W Series Miniature Rocker | | **XT** | Actuator Type | Standard Rocker / Paddle style | | **4** | Circuit Configuration | **4PDT** (Four Pole, Double Throw) | | **Z1Z1** | Contact Material | Silver Contacts (Standard Power Rating) | | **R** | Terminal Type | Right Angle PC Mount (Through-hole) | --- ### 2. Technical Specifications Below are the typical electrical and mechanical characteristics for this class of switch: * **Electrical Capacity:** * 6A @ 125V AC * 3A @ 250V AC * 4A @ 30V DC * **Contact Resistance:** 10 milliohms maximum. * **Insulation Resistance:** 1,000 megohms minimum @ 500V DC. * **Dielectric Strength:** 1,000V AC minimum between contacts for at least one minute. * **Mechanical Life:** 50,000 operations minimum. * **Operating Temperature:** -30°C to +85°C (-22°F to +185°F). --- ### 3. Key Electronic Features * **4PDT Logic:** This switch can control four independent circuits simultaneously. Each pole can toggle between two different output paths, making it ideal for complex signal routing. * **Silver Contacts:** The "Z1" designation indicates silver contacts, which are preferred for power applications because they maintain high conductivity over time. * **Right-Angle PCB Mounting:** The "R" suffix indicates the terminals are bent at a 90-degree angle. This allows the switch to be mounted on a horizontal PCB while the rocker faces the front panel of the device. --- ### 4. Circuit Diagram (Internal) The 4PDT configuration behaves as follows: ```text Pole 1: (1-2) or (2-3) Pole 2: (4-5) or (5-6) Pole 3: (7-8) or (8-9) Pole 4: (10-11) or (11-12) ``` *(Center pins are common; moving the rocker connects the common to one of the two outer pins per pole.)*