The part number **04022K8R2ABSTR\500** refers to a high-precision, thin-film Surface Mount Device (SMD) capacitor, typically manufactured by **Kyocera AVX**. These components are specifically designed for high-frequency applications, such as RF (Radio Frequency) circuits. ### Part Number Breakdown | Component Segment | Value | Description | | :--- | :--- | :--- | | **0402** | Case Size | 0.4mm x 0.2mm (Inches: 01005 metric equivalent is different; this is the standard 0402 imperial size). | | **2** | Voltage | 200V Rating. | | **K** | Dielectric | Accu-P® (Thin Film technology for high stability). | | **8R2** | Capacitance | 8.2 pF (Picofarads). The "R" acts as a decimal point. | | **A** | Tolerance | ±0.05 pF (Ultra-tight tolerance). | | **B** | Termination | Nickel Barrier with Tin (Sn) plating (Lead-Free/RoHS). | | **STR** | Packaging | Taped and Reeled. | | **\500** | Quantity | 500 pieces per reel. | --- ### Technical Specifications The **Accu-P® series** is known for its extreme precision compared to standard multilayer ceramic capacitors (MLCC). * **Technology:** Thin-Film. Unlike standard MLCCs which use layered ceramic, thin-film capacitors use high-purity materials deposited via vacuum evaporation to achieve exact tolerances. * **Operating Temperature:** -55°C to +125°C. * **Q-Factor:** Very high Quality factor (Q), meaning extremely low energy loss at high frequencies. * **SRF (Self-Resonant Frequency):** Optimized for performance in the GHz range. ### Common Applications Due to the small size (0402) and high precision (±0.05 pF), this part is commonly used in: 1. **Impedance Matching:** Tuning RF power amplifiers. 2. **Filter Circuits:** Low-pass and Band-pass filters in telecommunications. 3. **VCOs:** Voltage Controlled Oscillators where frequency stability is critical. 4. **Mobile Communications:** Smartphones, GPS, and Satellite receivers. --- ### Comparison: Thin-Film vs. Standard MLCC | Feature | Accu-P (Thin-Film) | Standard MLCC (C0G/NP0) | | :--- | :--- | :--- | | **Tolerance** | Very Tight (±0.01pF to ±0.1pF) | Standard (±5% or ±0.5pF) | | **Stability** | Excellent over frequency | Moderate | | **Cost** | Higher | Lower | | **Best Use** | Precision RF/Microwave | General Filtering/Decoupling |