The part number **1261-R2BK** typically refers to a high-quality **instrument enclosure** or case manufactured by **Hammond Manufacturing**. These units are designed to house electronic circuits, power supplies, or control interfaces. --- ### 1. Technical Specifications The 1261-R2BK belongs to a specific series of heavy-duty enclosures. Below are the key technical attributes: | Feature | Specification | | :--- | :--- | | **Manufacturer** | Hammond Manufacturing | | **Material** | Steel (Body) / Aluminum (Panels) | | **Color/Finish** | Black (Powder Coat) | | **Construction** | Two-piece "clamshell" design | | **Ventilation** | Non-vented (Solid) | | **Mounting** | Desktop / Portable | --- ### 2. Component Composition An "electronic part" like this enclosure is comprised of several sub-components that ensure the protection of the internal electronics: * **Top and Bottom Covers:** Usually made from 18-gauge steel to provide structural rigidity and EMI/RFI shielding. * **Front and Rear Panels:** Often made of thin aluminum. These are designed to be easily drilled or milled to install switches, LEDs, connectors, or LCD displays. * **Fasteners:** Phillips head machine screws that secure the covers to internal pem-nuts or standoffs. * **Rubber Feet:** Self-adhesive or screw-in feet to prevent the unit from sliding and to protect the desk surface. --- ### 3. Common Use Cases The 1261-R2BK is used in professional and hobbyist electronics for: 1. **Test Equipment:** Housing DIY oscilloscopes, signal generators, or multimeters. 2. **Audio Gear:** Preamplifiers, DACs (Digital-to-Analog Converters), or headphone amps. 3. **Industrial Controllers:** Protecting PLC interfaces or custom relay logic boards. 4. **Power Supplies:** Providing a safe, grounded metal box for high-voltage transformers and regulators. --- ### 4. Integration Example When designing a project using this part, an engineer would typically follow this workflow: ```markdown 1. Measure internal dimensions for PCB clearance. 2. Use CAD software (like AutoCAD or KiCad) to layout panel cutouts. 3. Drill aluminum panels for I/O (USB, XLR, DC Jack). 4. Install PCB using adhesive standoffs or by drilling through the bottom plate. 5. Earth-ground the steel chassis for safety. ```