The part number **1-640415-0** refers to a specific electrical connector within the **MTA-156 (Mass Termination Assembly)** family, manufactured by **TE Connectivity**. --- ### 1. Technical Specifications This part is a wire-to-board connector designed for high-density applications using IDC (Insulation Displacement Contact) technology. | Feature | Specification | | :--- | :--- | | **Manufacturer** | TE Connectivity | | **Series** | MTA-156 | | **Number of Positions** | 10 | | **Pitch (Spacing)** | 3.96 mm (0.156 in) | | **Contact Gender** | Female (Receptacle) | | **Wire Gauge (AWG)** | 18 AWG | | **Color Code** | Orange (Indicates 18 AWG) | | **Contact Material** | Copper Alloy | | **Contact Plating** | Tin | | **Housing Material** | Nylon (UL 94V-2) | --- ### 2. Key Characteristics #### Insulation Displacement Contact (IDC) The primary feature of this connector is the IDC termination. This allows the user to terminate wires without stripping the insulation. When the wire is pressed into the terminal slot, the contact "displaces" the insulation to make a cold-weld connection with the conductor. #### Color Coding In the MTA-156 series, the housing color indicates the compatible wire gauge. * **Orange** (as seen in 1-640415-0) is strictly for **18 AWG** wires. * Using the wrong wire gauge can lead to poor electrical contact or mechanical failure. #### Locking Mechanism The part features a **friction lock**. It is designed to mate with headers that have a locking ramp, ensuring the connector stays seated under vibration, yet remains removable without special tools. --- ### 3. Common Applications * **Power Supplies:** Often used for internal power distribution. * **Industrial Controls:** Connecting sensors and actuators to PCBs. * **Appliances:** High-current internal wiring in white goods. * **Vending/Gaming Machines:** Wiring harnesses for displays and coin mechs. --- ### 4. Required Tooling To properly seat the wires into the 1-640415-0 connector, specific tools are required: * **Manual Pistol Grip Tool:** For low-volume assembly. * **Die Sets:** Specific to the MTA-156 series. * **T-Handle Tool:** For field repairs.