The part number **CSR13B563KA** refers to a high-reliability, military-grade solid tantalum capacitor. These components are typically used in aerospace, defense, and high-performance industrial applications where stability and durability are critical. --- ### 1. Part Number Breakdown (MIL-C-39003) This part follows the military specification coding system. Here is the breakdown of what each segment represents: | Segment | Code | Description | | :--- | :--- | :--- | | **Series** | CSR13 | Military style for polar, solid tantalum capacitors (hermetically sealed). | | **Voltage** | B | Rated Voltage (6V to 15V range; specifically **15VDC** for CSR13). | | **Capacitance** | 563 | **0.056 µF**. (56 followed by 3 zeros in pF: 56,000pF). | | **Tolerance** | K | **±10%** capacitance tolerance. | | **Failure Rate** | A | **1.0% per 1,000 hours** (Non-ER or basic reliability level). | --- ### 2. Technical Specifications Below are the typical electrical and physical characteristics for this specific component: * **Capacitance:** 0.056 Microfarads (µF) * **Voltage Rating:** 15 Volts DC * **Case Size:** Usually "A" Case (the smallest axial leaded size). * **Dielectric:** Tantalum Pentoxide ($Ta_2O_5$). * **Construction:** Hermetically sealed in a metal case to prevent moisture ingress. * **Operating Temperature:** -55°C to +125°C. * **Termination:** Axial leads (solder coated). --- ### 3. Key Features and Usage Because this is a **CSR13** series capacitor, it possesses specific traits that distinguish it from standard commercial capacitors: 1. **Hermetic Seal:** The glass-to-metal seal protects the internal elements from harsh environments, ensuring long-term shelf life and operational stability. 2. **Low Leakage:** Tantalum capacitors are known for very low DC leakage currents compared to aluminum electrolytics. 3. **Applications:** * Military communications equipment. * Satellite and aerospace circuitry. * Filtering, bypassing, and coupling in low-voltage DC circuits. --- ### 4. Comparison with Commercial Alternatives If you are looking for a commercial equivalent, it would be the **KEMET T212** or **Vishay 150D** series. However, commercial versions lack the rigorous military testing and failure rate certification provided by the CSR13 designation.