The **TAS823K035P1A** is a specific part number for a high-performance tantalum capacitor. It is designed for applications requiring high stability, reliability, and volumetric efficiency. --- ### 1. Part Number Decomposition To understand the electronic characteristics, we can break down the alphanumeric code: | Segment | Value | Meaning | | :--- | :--- | :--- | | **TAS** | Series | Tantalum Hermetically Sealed Axial Capacitor | | **823** | Capacitance | 82,000 pF (or **0.082 µF**) | | **K** | Tolerance | **±10%** | | **035** | Voltage | **35 Volts** DC | | **P** | Case Size | Specific physical dimensions (Axial leaded) | | **1A** | Packaging/Finish | Standard commercial or military-style finish | --- ### 2. Key Technical Specifications The TAS series is often used in aerospace, military, and high-end industrial circuits due to its robust construction. * **Dielectric Material:** Tantalum Pentoxide ($Ta_2O_5$). * **Form Factor:** Axial-leaded (leads come out of both ends). * **Operating Temperature:** Typically $-55^\circ C$ to $+125^\circ C$. * **Leakage Current:** Very low, making it ideal for timing or coupling circuits. * **Stability:** Highly stable capacitance across temperature and voltage fluctuations compared to ceramic (MLCC) or aluminum electrolytic capacitors. --- ### 3. Applications and Use Cases Because of its hermetic seal and tantalum chemistry, this part is used in environments where failure is not an option: 1. **Filtering:** Smoothing power supply rails in low-noise environments. 2. **Coupling/Decoupling:** Blocking DC while allowing AC signals to pass in audio or RF stages. 3. **Timing Circuits:** Used in RC networks where precise capacitance values are needed over time. 4. **Harsh Environments:** The hermetic seal protects the internal electrolyte from drying out or reacting with high humidity. --- ### 4. Comparison with Other Capacitors | Feature | Tantalum (TAS) | Aluminum Electrolytic | Ceramic (MLCC) | | :--- | :--- | :--- | :--- | | **Size** | Very Compact | Large | Smallest | | **Longevity** | Excellent (No drying) | Fair (Dries over time) | Excellent | | **ESR** | Low | High | Very Low | | **Reliability** | High | Standard | High | ---