The part number **34717** typically refers to a specialized component produced by manufacturers like **Molex** (often associated with automotive headers) or as a legacy catalog number for industrial parts. In the context of modern electronics, it is most commonly identified as a part of the **Molex Stac64™** stackable connection system. ### 1. Component Overview: Molex 34717 (Stac64 Series) The 34717 series consists of vertical, through-hole headers used primarily in automotive and industrial signal applications. These are designed to be "stackable," allowing engineers to expand the number of circuits without redesigning the PCB layout. | Specification | Details | | :--- | :--- | | **Component Type** | PCB Header (Vertical) | | **Connector System** | Stac64™ Stackable Connection System | | **Circuit Size** | Typically 8, 12, 16, or 20 circuits (varies by suffix) | | **Pitch** | 2.54mm (0.100") | | **Current Rating** | ~10.0A per contact (dependent on wire gauge) | | **Operating Temp** | -40°C to +105°C | --- ### 2. Key Features and Construction * **Modular Design:** The "Stac64" name implies its modularity. These headers can be nested together to form a large connector block. * **Polarization:** The housing features mechanical keying to prevent incorrect mating (mismatched plugs). * **Color Coding:** Available in various colors (Black, Grey, Brown, Green) to help assembly line workers identify specific functional circuits. * **Solder Tail:** Designed for wave soldering with PCB through-holes. --- ### 3. Common Applications Due to its rugged design and vibration resistance, the 34717 series is found in: 1. **Automotive Interiors:** Instrument panels, lighting control, and climate control units. 2. **In-Vehicle Infotainment:** Connecting head units to peripheral displays or speakers. 3. **Industrial Controllers:** Connecting sensors to PLC (Programmable Logic Controller) boards. 4. **Body Electronics:** Door modules and seat adjustment systems. --- ### 4. Typical Pinout Logic While the exact pinout depends on the specific 10-digit Molex part number (e.g., 0347170080), the general physical layout follows this logic: ```markdown [ Top View of Header ] ___________________________ | (1) (2) (3) (4) (5) (6) | <-- Row A (Signal) | (7) (8) (9) (10)(11)(12) | <-- Row B (Ground/Power) |___________________________| |_Keying_| ``` --- ### 5. Cross-Reference & Alternatives If you are looking for this part and it is out of stock, engineers usually look at the **Molex 34912** series (Mini50) for smaller footprints or the **TE Connectivity MQS** series for similar automotive applications.