The part number **CDR32BP102BFURAJ** refers to a high-reliability, military-grade surface mount multilayer ceramic capacitor (MLCC). This component is manufactured under the **MIL-PRF-55681** standard, which is typically used in aerospace, defense, and high-reliability industrial applications. ### Technical Specifications | Parameter | Specification | Details | | :--- | :--- | :--- | | **Capacitance** | 1,000 pF (1 nF) | "102" code: 10 followed by 2 zeros | | **Tolerance** | ±1% | "B" code: Ultra-tight tolerance | | **Voltage Rating** | 100 V | "U" code | | **Dielectric** | BP (NPO/COG) | Stable; 0 ±30 ppm/°C temperature coefficient | | **Case Size** | 1206 (Metric 3216) | "32" refers to 3.2mm x 1.6mm | | **Termination** | Silver/Nickel/Gold | "A" code (often refers to gold-plated or specific mil-finish) | | **Reliability Level** | R (0.01% per 1,000 hrs) | Established Reliability (ER) rating | --- ### Key Feature Breakdown #### 1. Dielectric (BP/C0G) The **BP** designation is the military equivalent of the commercial **C0G (NP0)** dielectric. It is the most stable capacitor material available. * **Zero Drift:** Capacitance does not change significantly with temperature, voltage, or time. * **Low Loss:** Extremely low dissipation factor, making it ideal for high-frequency filters and precision timing circuits. #### 2. Military Reliability (MIL-PRF-55681) Unlike standard commercial capacitors, this part undergoes rigorous "Established Reliability" testing. * **Failure Rate:** The "R" in the part number indicates a specific failure rate level monitored by the military. * **Traceability:** These parts often come with extensive documentation and lot traceability to ensure they meet mission-critical standards. #### 3. Physical Dimensions The **1206 footprint** is large enough for easy handling and robust soldering in high-vibration environments but small enough for modern dense PCB layouts. --- ### Typical Applications * **RF Oscillators:** Due to the stable BP dielectric. * **Filtering:** High-frequency noise suppression in military communication gear. * **Timing Circuits:** Where 1% precision is required across extreme temperature ranges (-55°C to +125°C). * **Avionics:** Systems requiring "R" level reliability to prevent field failures.