The part number **04023J1R2ABSTR** refers to a high-precision Thin Film Capacitor manufactured by **AVX (now KYOCERA AVX)**. This component is specifically designed for high-frequency RF (Radio Frequency) applications where stability and low loss are critical. --- ## Technical Specifications Breakdown The alphanumeric code provides a detailed description of the component's physical and electrical characteristics: | Code Segment | Parameter | Description | | :--- | :--- | :--- | | **0402** | Case Size | EIA 0402 (Metric 1005): approx. 1.0mm x 0.5mm | | **3** | Voltage Rating | 25 Volts DC | | **J** | Dielectric / Technology | Accu-P® (High Precision Thin Film) | | **1R2** | Capacitance Value | 1.2 pF (Picofarads) | | **A** | Capacitance Tolerance | ±0.05 pF (Ultra-tight tolerance) | | **B** | Failure Rate | Standard | | **STR** | Packaging | Tape & Reel (Usually 7" reel) | --- ## Key Features ### 1. Thin Film Technology Unlike standard Multilayer Ceramic Capacitors (MLCCs), this part uses **Thin Film** deposition. This ensures: * Extremely tight tolerances (±0.05 pF). * Highly repeatable performance across different production batches. ### 2. RF Performance This part is part of the **Accu-P®** series, known for: * **High Q Factor:** Low energy loss at gigahertz frequencies. * **Low ESR:** Low Equivalent Series Resistance. * **SRF (Self-Resonant Frequency):** Optimized for high-frequency signal paths. ### 3. Physical Attributes * **Solderability:** Features nickel/tin-plated terminations compatible with lead-free reflow soldering. * **Stability:** Very low sensitivity to temperature changes and aging. --- ## Typical Applications Because of its precision and performance in the RF spectrum, it is commonly used in: * **Cellular Communications:** Power amplifiers and filter networks. * **Satellite Systems:** Signal conditioning. * **GPS Devices:** High-frequency tuning. * **Matching Networks:** Impedance matching for antennas and RF front-ends. ---