The part number **M3SWVS-46Y-R** identifies a specialized Ribbon Cable Assembly manufactured by **3M**. This component is primarily used for internal board-to-board or peripheral connections where space-saving and organized wiring are required. --- ### 1. Technical Specifications | Feature | Specification | | :--- | :--- | | **Manufacturer** | 3M | | **Connector Type** | Socket to Card Edge | | **Number of Positions** | 46 | | **Number of Rows** | 2 | | **Pitch (Connector)** | 0.100" (2.54mm) | | **Pitch (Cable)** | 0.050" (1.27mm) | | **Length** | 3.83' (1.17m) | | **Shielding** | Unshielded | | **Color** | Multiple (Rainbow/Twist) or Gray with Red Edge | --- ### 2. Breakdown of Components The assembly consists of three primary electronic sub-parts: #### A. The Ribbon Cable * **Conductor Material:** Usually tinned copper to prevent corrosion. * **Insulation:** PVC (Polyvinyl Chloride). * **Flexibility:** Designed for static applications but flexible enough to fold within tight enclosures. #### B. Socket Connector (M3 Part) * **Contact Material:** Copper Alloy with Gold over Nickel plating for high conductivity and durability. * **Design:** These are Insulation Displacement Connectors (IDC). They "pierce" the cable insulation to make contact with the wire without stripping it. #### C. Card Edge Connector * **Function:** This side of the cable slides directly onto the traces of a Printed Circuit Board (PCB). * **Mechanical Keying:** Often includes a "polarizing key" to ensure it cannot be plugged in backward, preventing short circuits. --- ### 3. Common Applications * **Industrial Controls:** Connecting PLC units to interface modules. * **Legacy Computing:** Used in older disk drive interfaces or custom backplane connections. * **Test Equipment:** Routing signals from a motherboard to a front-panel display or button array. --- ### 4. Key Features 1. **High Reliability:** 3M’s IDC technology ensures a gas-tight connection at the termination point. 2. **Ease of Installation:** No soldering is required for the cable-to-connector interface. 3. **Low Profile:** Ideal for "1U" or "2U" rack-mounted electronic chassis where airflow is critical.