## Technical Overview of A-HDF26LL-WP-R The **A-HDF26LL-WP-R** is a specific electronic connector manufactured by **Assmann WSW Components**. It belongs to the D-Subminiature family, designed for high-density applications with environmental sealing. --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify the exact specifications of the component: | Code Segment | Description | Specific Detail | | :--- | :--- | :--- | | **A** | Manufacturer Prefix | Assmann WSW Components | | **HD** | Series | High Density | | **F** | Gender | Female (Socket) | | **26** | Pin Count | 26 Positions | | **LL** | Mounting Type | Low Profile / Straight Solder Cup | | **WP** | Environmental | Waterproof (IP67 Rated) | | **R** | Compliance | RoHS Compliant | --- ### 2. Key Electronic & Mechanical Specifications The electronic integrity of this part is defined by its materials and electrical ratings. #### Electrical Characteristics * **Current Rating:** Typically 3A per contact. * **Voltage Rating:** 250V AC/DC. * **Contact Resistance:** $\le$ 15m$\Omega$ (initial). * **Insulation Resistance:** $\ge$ 5000M$\Omega$ at 500V DC. * **Dielectric Strength:** 1000V AC for 1 minute. #### Mechanical & Material Data * **Contact Material:** Copper Alloy (typically gold plated over nickel). * **Insulator:** PBT Thermoplastic, UL94V-0 rated (Flame retardant). * **Shell:** Steel, Tin plated (provides EMI/RFI shielding). * **Waterproof Seal:** Silicone O-ring / Epoxy sealing for **IP67 protection**. --- ### 3. Application Use Cases Because of its high density (26 pins in the physical size of a standard 15-pin D-sub shell) and waterproof rating, this part is commonly used in: 1. **Industrial Automation:** Sensors and actuators in wash-down environments. 2. **Outdoor Communications:** Telemetry systems exposed to rain or humidity. 3. **Marine Electronics:** Bridge equipment where salt spray or moisture is present. 4. **Medical Devices:** Equipment requiring frequent sterilization or liquid resistance. --- ### 4. Mounting & Connection * **Termination:** Solder Cup. This means wires are manually soldered into the "cups" at the rear of the connector. * **Density:** It uses 3 rows of contacts instead of the standard 2 rows found in regular D-Subs. * **Sealing:** To maintain the IP67 rating, it must be mounted to a panel using the provided gasket/O-ring.