The **AAC-AC141-R** is a specific electronic component, typically categorized as a **D-Sub Hardware Accessory**. Specifically, it is a high-quality **Jack Screw** or **Standoff** used for securing D-subminiature connectors (like DB9, DB15, or DB25) to a chassis or a PCB. Below is a detailed breakdown of its specifications and electronic properties. --- ## 1. Technical Specifications | Feature | Description | | :--- | :--- | | **Component Type** | D-Sub Jack Screw / Mounting Hardware | | **Material** | Steel or Brass (application dependent) | | **Plating** | Nickel or Clear Zinc (for corrosion resistance) | | **Thread Size** | #4-40 UNC (Standard for D-Sub) | | **Gender** | Male-Female (Standoff style) | | **RoHS Status** | Compliant (The "-R" suffix typically denotes RoHS) | --- ## 2. Key Electronic & Mechanical Roles The AAC-AC141-R serves three primary functions in an electronic assembly: ### A. Mechanical Stability It acts as a standoff that secures the connector to the bulkhead or panel. This prevents the connector from being pushed back into the housing when a cable is plugged in, or pulled out when unplugged. ### B. Electrical Grounding (Shielding) Since these parts are metallic, they play a crucial role in **EMI/RFI shielding**. * They provide a low-impedance path between the cable’s metal shell and the device’s chassis. * This helps drain static and interference to the common ground. ### C. Connection Locking The internal #4-40 threads allow the mating cable's thumb screws to lock into the port. This ensures that vibration or accidental tugging does not result in a loss of data signal. --- ## 3. Dimensions and Form Factor The typical physical structure of this part includes: 1. **Threaded Stud:** The part that screws into the panel or PCB. 2. **Hexagonal Body:** Allows for tightening with a 3/16" nut driver. 3. **Internal Thread:** The "socket" where the external cable screw attaches. --- ## 4. Part Number Breakdown (Typical) While manufacturers vary, the suffixing usually follows this logic: * **AAC:** Manufacturer Prefix (often associated with *Adam Tech* or similar hardware providers). * **AC141:** Specific model size and length (usually a standard length for 1/8" panels). * **R:** Indicates **RoHS Compliance**, meaning it is free from hazardous substances like lead or cadmium.