The part number **04023K680ABSTR** refers to a high-precision surface-mount capacitor, typically used in Radio Frequency (RF) and microwave applications. It is manufactured by **Kyocera AVX**. Below is the detailed breakdown of the electronic specifications and part number nomenclature. ### 1. Part Number Breakdown | Segment | Code | Description | | :--- | :--- | :--- | | **Size** | `0402` | EIA Case Size (0.04 x 0.02 inches / 1.0 x 0.5 mm) | | **Voltage** | `3` | Rated for **25 Volts** | | **Dielectric** | `K` | Accu-P® technology (Thin Film Silicon Dioxide/Nitride) | | **Capacitance** | `680` | **68.0 pF** (68 followed by 0 zeros) | | **Tolerance** | `A` | Tight Tolerance: **±0.05 pF** | | **Termination** | `BS` | Nickel barrier with Gold (Au) or Tin finish (standard RF) | | **Packaging** | `TR` | Tape & Reel | --- ### 2. Technical Specifications This component is part of the **Accu-P® Series**, which uses thin-film technology rather than standard multilayer ceramic (MLCC) processes. This results in superior performance at high frequencies. * **Capacitance:** 68 pF * **Tolerance:** Extremely tight (±0.05 pF), critical for tuning circuits. * **Operating Temperature:** -55°C to +125°C. * **Q-Factor:** High Q (Low loss), essential for minimizing signal attenuation in RF paths. * **SRF (Self-Resonant Frequency):** Very high, allowing the part to function predictably into the GHz range. --- ### 3. Key Applications Because of its high precision and stability, this part is used in: 1. **Mobile Communications:** Cellular base stations and handsets. 2. **Satellite Systems:** GPS and telemetry equipment. 3. **Matching Networks:** Impedance matching for power amplifiers. 4. **Filters:** Low-pass, high-pass, and band-pass filters in RF circuits. --- ### 4. Comparison: Accu-P vs. Standard MLCC | Feature | Accu-P (04023K...) | Standard MLCC (C0G/NP0) | | :--- | :--- | :--- | | **Precision** | Ultra-high (Thin Film) | Moderate (Thick Film) | | **Repeatability** | Excellent (Batch to Batch) | Good | | **RF Performance** | Superior at >1 GHz | Degrades at higher GHz | | **Cost** | Higher | Lower |