Based on the part number **18JPA-166-R**, this component is a specific type of electronic hardware, typically categorized as a **Swivel Head Binding Post** or a specialized **Terminal Connector**. Below is a detailed breakdown of its specifications, construction, and typical applications. --- ### 1. Technical Specifications This part is commonly manufactured by companies like **Keystone Electronics** or similar industrial hardware suppliers. | Feature | Specification | | :--- | :--- | | **Part Category** | Binding Post / Terminal | | **Type** | Swivel Head / Insulated | | **Current Rating** | 15 Amps to 30 Amps (varies by mounting) | | **Voltage Breakdown** | 2500V RMS | | **Mounting Type** | Panel Mount (Threaded) | | **Head Material** | Thermoplastic (Nylon) or Phenolic | | **Body Material** | Brass, Nickel Plated | | **RoHS Compliant** | Yes (indicated by the "-R" suffix) | --- ### 2. Functional Design The **18JPA-166-R** is designed to provide a secure, temporary, or permanent connection point for wires on a chassis or control panel. * **Swivel Head:** The top section allows for easy tightening and loosening to clamp down on bare wires, spade lugs, or ring terminals. * **Insulation:** The plastic cap ensures that the user can manipulate the terminal without coming into contact with live voltage. * **Cross-Hole:** Most versions include a hole through the metal threaded post to allow for easy insertion of stripped wire before tightening. * **Color Coding:** While the part number refers to a specific series, these are often available in **Red** (Positive) or **Black** (Negative/Ground). --- ### 3. Part Number Breakdown While manufacturer codes vary slightly, the nomenclature usually follows this logic: | Code Segment | Meaning | | :--- | :--- | | **18** | Series designator (usually refers to thread size or height) | | **JPA** | Product category (Junction/Post Assembly) | | **166** | Specific dimensional variant or color code | | **-R** | **RoHS Compliant** (Restriction of Hazardous Substances) | --- ### 4. Applications These parts are industrial-grade and are typically found in: 1. **Power Supplies:** Output terminals for benchtop or industrial power units. 2. **Audio Equipment:** High-end speaker connections or amplifier outputs. 3. **Test Equipment:** Calibration tools where reliable manual connection is required. 4. **Control Panels:** Points of entry for DC power or signal ground. --- ### 5. Installation Note When installing the **18JPA-166-R**, ensure the panel hole is deburred. Use the provided hex nut and lock washer on the interior of the chassis to prevent the post from spinning when the head is tightened externally.