The **MHDPPK50-R** is a specific type of electronic hardware component, primarily classified as a **D-Sub Connector Hood (Backshell)**. It is designed to house and protect a 50-pin D-Sub connector. Below is a detailed breakdown of its electronic and mechanical specifications. --- ## 1. Technical Specifications | Feature | Specification | | :--- | :--- | | **Series** | MHDPPK | | **D-Sub Shell Size** | DB50 (Size E) | | **Material** | Polyamide (PA66) / Nylon | | **Entry Angle** | 180° (Straight Exit) | | **Cable Diameter Range** | 4.0mm to 13.0mm | | **Color** | Black | | **Temperature Range** | -55°C to +110°C | --- ## 2. Key Components and Design The "MHDPPK" series is known for its **Quick-Snap** locking mechanism, which simplifies assembly without needing a high number of screws. ### A. Material Composition * **Plastic Body:** Made from UL94V-0 rated Polyamide. This provides excellent electrical insulation and high durability against mechanical stress. * **Strain Relief:** Includes a plastic internal strain relief insert to prevent the cable from being pulled out of the solder joints or crimp contacts. ### B. Hardware Included The kit typically includes: 1. **Two-piece shell:** Two halves that snap or screw together. 2. **Thumbscrews:** UNC 4-40 threaded screws used to secure the finished cable to the mating port (e.g., a computer or industrial machine). 3. **Compression Inserts:** A set of grommets/bushings to fit various cable thicknesses. --- ## 3. Applications The MHDPPK50-R is widely used in environments where high-density pin counts are required but electromagnetic interference (EMI) shielding is not a critical requirement (as this is a plastic, non-metallized shell). * **Industrial Control:** Connecting PLC systems to peripheral devices. * **Data Communications:** RS-232/RS-422/RS-485 serial communication for 50-pin configurations. * **Test & Measurement:** Custom breakout boxes for lab equipment. --- ## 4. Part Number Breakdown: MHDPPK50-R | Prefix | Type | Size | Suffix | | :--- | :--- | :--- | :--- | | **MHD** | Manufacturer Series | **50** | 50-Pin Density | | **PPK** | Plastic Plug Kit (Snap) | **-R** | RoHS Compliant | --- ### Installation Note Since this is a **Plastic** backshell, it does not provide Faraday cage protection. If your application requires protection against RF interference, you should look for the **MHDM** (Die-cast metal) or **MHDMP** (Metallized plastic) versions instead.