The part number **04023K680ABSTR\500** corresponds to a high-performance **Thin Film Surface Mount Capacitor** manufactured by **AVX (Kyocera AVX)**. This component is specifically designed for high-frequency applications like RF (Radio Frequency) circuits. --- ### 1. Part Number Breakdown Understanding each segment of the part number reveals its technical characteristics: | Code | Parameter | Description | | :--- | :--- | :--- | | **0402** | Case Size | 0.04 x 0.02 inches (1.0 x 0.5 mm). | | **3** | Voltage | Rated for **25 Volts**. | | **K** | Dielectric | Accu-P® Series (High-performance thin film). | | **680** | Capacitance | **68 pF** (The first two digits are significant; the third is the multiplier). | | **A** | Tolerance | **±0.05 pF** (Extremely tight tolerance). | | **B** | Termination | Nickel/Solder overcoat (Standard Sn/Pb or Lead-Free depending on series). | | **STR** | Packaging | Taping and Reel. | | **500** | Quantity | Reel containing **500 pieces**. | --- ### 2. Technical Specifications This capacitor belongs to the **Accu-P®** line, which uses thin-film technology rather than traditional multilayer ceramic (MLCC) methods. This provides superior precision. * **Capacitance:** 68 pF * **Tolerance:** ±0.05 pF (Ultra-precise) * **Voltage Rating:** 25V DC * **Operating Temperature:** -55°C to +125°C * **Quality Factor (Q):** High Q (Low loss at high frequencies) * **SRF (Self-Resonant Frequency):** Typically in the GHz range. --- ### 3. Key Applications Because of its high precision and stability at high frequencies, this part is used in: * **RF Power Amplifiers:** For impedance matching. * **Filters:** Low-pass, high-pass, and band-pass filters in mobile devices. * **VCOs:** Voltage Controlled Oscillators requiring stable capacitance. * **Satellite Communications:** Where signal integrity is critical. --- ### 4. Comparison: Thin Film vs. MLCC | Feature | Thin Film (04023K...) | Standard MLCC | | :--- | :--- | :--- | | **Tolerance** | Extremely Tight (±0.05 pF) | Standard (±5% or ±10%) | | **Stability** | Very High over Temp/Freq | Moderate | | **SRF** | Higher/Predictable | Lower/Variable | | **Cost** | Higher | Lower |