The part number **04023K8R2ABSTR\500** refers to a high-frequency, surface-mount thin-film capacitor manufactured by **Kyocera AVX**. This specific component is part of the **Accu-P®** series, which is designed for high-precision RF (Radio Frequency) and microwave applications. --- ### Part Number Breakdown To understand the electronic characteristics, we can decode the part number according to the manufacturer's nomenclature: | Code Segment | Parameter | Description | | :--- | :--- | :--- | | **0402** | Case Size | Dimensions: 0.04 x 0.02 inches (1.0 x 0.5 mm). | | **3** | Rated Voltage | 25 Volts DC. | | **K** | Dielectric / Series | Accu-P technology (Thin Film). | | **8R2** | Capacitance Value | **8.2 pF** (R acts as the decimal point). | | **A** | Tolerance | **±0.05 pF** (Extremely tight tolerance). | | **B** | Temperature Coefficient | 0 ± 30 ppm/°C (Highly stable over temperature). | | **ST** | Termination | Sn (Tin) over Nickel / Solderable. | | **R** | Packaging | Tape & Reel. | | **\500** | Quantity | 500 pieces per reel. | --- ### Technical Specifications The "Thin Film" construction allows this part to outperform standard multilayer ceramic capacitors (MLCCs) in high-frequency environments. * **Tolerance:** ±0.05 pF (Essential for matching circuits where precision is critical). * **Operating Temperature:** -55°C to +125°C. * **SRF (Self-Resonant Frequency):** Typically very high (Gigahertz range), allowing it to function as a capacitor far into the RF spectrum. * **Q-Factor:** High "Q" (Low ESR/Energy Loss), which minimizes signal attenuation. --- ### Common Applications Because of its high precision and stability, this part is typically used in: 1. **RF Matching Networks:** Ensuring impedance matching in power amplifiers. 2. **Filter Circuits:** Used in band-pass or low-pass filters for telecommunications. 3. **VCOs (Voltage Controlled Oscillators):** Frequency stabilization. 4. **Satellite Communications:** Where signal integrity and low noise are paramount. --- ### Comparison with Standard MLCCs | Feature | Accu-P (Thin Film) | Standard MLCC (Class 1) | | :--- | :--- | :--- | | **Precision** | Extremely High (±0.05pF) | Moderate (±0.25pF or 5%) | | **Consistency** | High batch-to-batch repeatability | Lower repeatability | | **High Freq Performance** | Excellent up to 10GHz+ | Good up to ~2GHz | ---