The part number **0402YJ8R2ABSTR** refers to a high-precision **Thin Film Capacitor** manufactured by **Kyocera AVX**. This specific component is designed for high-frequency (RF/Microwave) applications where stability and low loss are critical. ### 1. Part Number Breakdown The naming convention follows the AVX Accu-P® series standard: | Segment | Value | Description | | :--- | :--- | :--- | | **0402** | Case Size | 0402 (Standard English units) / 1005 (Metric) | | **Y** | Voltage | 16 Volts DC | | **J** | Temperature Coeff. | 0 ± 30 ppm/°C (Accu-P Standard) | | **8R2** | Capacitance | 8.2 pF (R acts as the decimal point) | | **A** | Tolerance | ± 0.05 pF (Ultra-tight tolerance) | | **B** | Termination | Sn (Lead-Free, RoHS compliant) | | **STR** | Packaging | Tape & Reel (Standard) | --- ### 2. Technical Specifications This component belongs to the **Accu-P® series**, which uses thin-film technology rather than traditional multilayer ceramic (MLCC) processes to achieve superior performance. * **Capacitance:** 8.2 pF * **Tolerance:** ±0.05 pF (Extremely high precision) * **Voltage Rating:** 16V * **Operating Temperature:** -55°C to +125°C * **Q-Factor:** High Q (Very low energy loss at high frequencies) * **SRF (Self Resonant Frequency):** Typically in the multi-GHz range. --- ### 3. Key Advantages of Thin-Film Technology Unlike standard capacitors, thin-film capacitors are manufactured using semiconductor-like photolithography. This provides: 1. **High Dimensional Accuracy:** Resulting in extremely tight capacitance tolerances. 2. **Low ESR (Equivalent Series Resistance):** Reduces heat and signal loss. 3. **Low ESL (Equivalent Series Inductance):** Allows the part to function at much higher frequencies. 4. **Repeatability:** Very low part-to-part variation, essential for RF matching networks. --- ### 4. Common Applications Due to its 8.2 pF value and high-precision nature, this part is typically used in: * **RF Matching Networks:** Impedance matching for antennas in smartphones and IoT devices. * **Filters:** Band-pass and low-pass filters for cellular (5G/LTE), Wi-Fi, and Bluetooth. * **VCOs:** Voltage Controlled Oscillators. * **Satellite Communications:** High-frequency signal processing.