Based on the part number **W2AC-AZCY-R/Q**, this component belongs to the **W2AC Series** of automotive-grade crystal oscillators, typically manufactured by suppliers like **TXC Corporation** or similar specialized frequency control manufacturers. ### 1. Part Number Breakdown The suffixing and prefixing in automotive crystals usually follow a specific nomenclature: | Segment | Description | Typical Specification | | :--- | :--- | :--- | | **W2** | Series Code | Compact SMD (Surface Mount Device) package. | | **AC** | Product Type | Automotive Grade Crystal Oscillator (AEC-Q200 compliant). | | **AZ** | Frequency/Spec Code | Internal manufacturer code for specific frequency (e.g., 25MHz or 40MHz). | | **CY** | Tolerance/Stability | Often denotes ±10ppm to ±30ppm stability. | | **R/Q** | Packing & Quality | Tape & Reel (R) and Automotive Quality Standard (Q). | --- ### 2. Key Technical Specifications This part is engineered for high-reliability environments, specifically for vehicular applications. * **Package Size:** Usually a 2.0 x 1.6 mm or 2.5 x 2.0 mm 4-pad SMD package. * **Operating Temperature:** Typically **-40°C to +125°C**, meeting AEC-Q200 Grade 1. * **Frequency Range:** High-precision MHz range (exact value depends on the 'AZ' internal mapping). * **Load Capacitance:** Standard 8pF, 10pF, or 12pF. * **Material:** Hermetically sealed ceramic package with a metal lid to reduce EMI. --- ### 3. Common Applications Due to the **-R/Q** (Automotive Reliability) designation, these parts are found in: 1. **ADAS (Advanced Driver Assistance Systems):** Providing clock signals for cameras and radar sensors. 2. **Infotainment:** Timing for Bluetooth, Wi-Fi, and GPS modules. 3. **ECU (Engine Control Units):** Stable frequency reference for microcontrollers. 4. **TPMS:** Tire Pressure Monitoring Systems. --- ### 4. Mechanical Dimensions (Typical) | Dimension | Measurement (mm) | | :--- | :--- | | Length | 2.5 ± 0.1 | | Width | 2.0 ± 0.1 | | Height | 0.6 Max | ---