The part number **M3SWVS-D6Y-R** identifies a specific **Ribbon Cable Assembly** manufactured by **3M**. This component is primarily used for internal board-to-board or peripheral connections within electronic systems. --- ### 1. General Specifications This assembly consists of a socket connector on one end and a PCB transition header on the other, joined by a multi-conductor flat ribbon cable. | Feature | Specification | | :--- | :--- | | **Manufacturer** | 3M | | **Number of Positions** | 6 | | **Cable Length** | 0.500' (152.40mm, 6.00") | | **Pitch - Connector** | 0.100" (2.54mm) | | **Pitch - Cable** | 0.050" (1.27mm) | | **Number of Rows** | 2 | | **Color** | Multiple (Rainbow) | | **Shielding** | Unshielded | --- ### 2. Breakdown of the Assembly Components The "M3SWVS" prefix indicates a specific configuration of connectors and cable types: #### A. Connector Types * **Socket to PCB:** One end typically features a standard IDC (Insulation Displacement Connector) socket with a strain relief, while the other end is a "DIP" or "Transition" connector designed to be soldered directly into a Printed Circuit Board (PCB). * **Polarization:** The socket side usually includes a center bump (polarization key) to prevent incorrect insertion into the mating header. #### B. The Cable (D6Y) * **Rainbow Cable:** The "D6Y" designation indicates that the ribbon cable is color-coded. This makes it easier to trace specific pins from one end to the other during troubleshooting. * **Stranded Wire:** The conductors are typically 28 AWG stranded copper, providing flexibility and resistance to fatigue from vibration. #### C. Termination Method * **IDC (Insulation Displacement):** The connectors are "pressed" onto the cable. The metal contacts pierce the insulation to make contact with the conductor, ensuring a gas-tight connection without stripping individual wires. --- ### 3. Common Applications Due to its 6-position, 2-row layout, this cable is frequently used for: * **Programming Headers:** Connecting JTAG or ISP programmers to a microcontroller on a PCB. * **Sensor Interconnects:** Linking small sensor boards to a main control unit. * **Power/Signal Routing:** Low-current power distribution within an enclosure. --- ### 4. Part Number Coding (M3 Reference) The 3M numbering system for these assemblies generally follows this logic: `M3 [Connector A] [Connector B] [Cable Type] - [Length]` * **S:** Socket Connector. * **W:** Transition/DIP Connector. * **V:** Strain Relief included. * **R:** RoHS Compliant.