The **1455PBY** refers to a specific variation of an extruded aluminum enclosure manufactured by **Hammond Manufacturing**. While it is not a semiconductor (like a chip or transistor), it is a critical "mechanical electronic part" used to house and protect electronic PCB assemblies. --- ### 1. Technical Specifications The 1455PBY belongs to the 1455 Series, known for its ruggedness and sliding belly plate. | Feature | Specification | | :--- | :--- | | **Material** | Extruded Aluminum (6063-T5) | | **Finish** | Clear Anodized (standard) or Black Anodized | | **Dimensions** | 120mm x 78mm x 43mm (Length x Width x Height) | | **End Plate Material** | Plastic (Polycarbonate) | | **PCB Slots** | Built-in internal guide rails | | **Weight** | Approx. 180g | --- ### 2. Key Design Components #### A. Extruded Body The main body is a hollow aluminum tube designed to offer high structural rigidity and **EMI/RFI shielding**. This protects sensitive electronic circuits from external radio frequency interference. #### B. Internal PCB Guides The interior walls feature integrated horizontal slots. This allows a Printed Circuit Board (PCB) to slide directly into the chassis without the need for mounting screws or standoffs, saving space and assembly time. #### C. Removable Belly Plate The "P" in the series often signifies a specific length/profile, but the core design features a removable bottom plate. This allows engineers easy access to the underside of the PCB for testing or soldering after the unit is assembled. #### D. Plastic End Panels (The "BY" suffix) The "BY" suffix usually denotes the specific color or material of the end caps. * **Plastic Caps:** Ideal for applications where wireless signals (Wi-Fi/Bluetooth) need to pass through the ends of the device. * **Bezel design:** Provides a clean aesthetic for handheld or desktop instruments. --- ### 3. Common Applications * **Audio Equipment:** Preamps, DACs, and guitar pedals. * **Industrial Interfaces:** RS232/485 converters and signal isolators. * **Prototyping:** Used with development boards like Arduino or custom-sized PCBs. * **Test & Measurement:** Handheld signal generators or multimeters. --- ### 4. Part Number Breakdown Example `1455` (Series) + `P` (Size Code: 120mm) + `B` (Color: Black/Clear variations) + `Y` (Specific End Plate/Option).