The **R7FN-YS2-R/Q** is a specific part number typically associated with automotive-grade connector systems, specifically within the **Molex MX150** or similar high-performance series. These components are designed for mid-range power and signal applications in harsh environments. --- ### 1. Component Overview This part is a **sealed female terminal/socket** used primarily in automotive wiring harnesses. It is engineered to withstand vibrations, high temperatures, and moisture ingress. ### 2. Technical Specifications | Feature | Specification | | :--- | :--- | | **Component Type** | Female Terminal (Socket) | | **Contact Plating** | Silver (Ag) or Tin (Sn) - (R/Q variants often denote Silver) | | **Wire Gauge Range** | 18 - 22 AWG (approx. 0.50mm² - 0.75mm²) | | **Current Rating** | Up to 22A (depending on wire size) | | **Operating Temperature** | -40°C to +125°C (Class 3) | | **Sealing Type** | Matte Seal / Individual Wire Seal | --- ### 3. Key Electronic Characteristics * **Low Contact Resistance:** The use of high-conductivity copper alloys ensures minimal voltage drop across the connection, which is critical for sensor accuracy. * **High Normal Force:** The internal spring design maintains a constant pressure against the male pin, preventing "fretting corrosion" caused by engine vibrations. * **Environmental Protection:** When used with the corresponding housing and seals, it achieves an IP6K9K rating, meaning it can withstand high-pressure steam cleaning. ### 4. Application Areas The R7FN series is commonly found in: 1. **Engine Control Units (ECU):** Signal transmission for injectors and sensors. 2. **Chassis Lighting:** Powering LED assemblies where moisture protection is vital. 3. **Transmission Systems:** Connectivity for solenoids and fluid pressure sensors. --- ### 5. Identification Code Breakdown * **R7FN:** Base series identifier (Socket/Terminal family). * **YS2:** Denotes the physical size and geometry (Medium-sized blade receptacle). * **R/Q:** Material and plating indicators. "R" often refers to reel-fed packaging for automated crimping, while "Q" specifies the specific silver-alloy finish for high-temperature cycles.