## Technical Overview of CK45-R3AD101KAVRA The **CK45-R3AD101KAVRA** is a high-voltage ceramic disc capacitor manufactured by **TDK Corporation**. It is specifically designed for use in power supplies and electronic equipment requiring high reliability and high voltage tolerance. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Capacitance** | 100 pF | | **Tolerance** | ±10% (K) | | **Rated Voltage** | 1000V DC (1kV) | | **Temperature Coefficient** | R (Low Dissipation / High Stability) | | **Mounting Type** | Through-Hole | | **Lead Spacing** | 5.0 mm | | **Package / Case** | Radial Disc | --- ### 2. Part Number Breakdown Understanding the TDK nomenclature helps decode the component's capabilities: * **CK45**: Series name (High Voltage Ceramic Capacitors). * **R3AD**: Voltage and Temperature Characteristic code. * **3A**: Rated voltage of 1000V DC. * **R**: Class 2 ceramic with stable characteristics. * **101**: Capacitance value. The first two digits (10) are the value, and the third (1) is the multiplier ($10 \times 10^1 = 100$ pF). * **K**: Tolerance ($\pm 10\%$). * **A**: Lead shape/style (usually implies a specific kink or straight lead). * **V**: Packaging type (Bulk). * **RA**: RoHS compliance and internal manufacturing code. --- ### 3. Application Use Cases This specific capacitor is commonly found in the following circuits: 1. **Snubber Circuits:** Used in switching power supplies to absorb voltage spikes and protect semiconductors. 2. **Horizontal Resonance:** Often used in CRT displays or specialized monitor circuits. 3. **High Voltage Filtering:** Used to smooth out DC voltage in high-potential power lines. 4. **Lightning Surge Protection:** Acts as a buffer against transient surges in power equipment. --- ### 4. Physical Dimensions (Typical) * **Diameter (D):** ~6.0 mm max. * **Thickness (T):** ~5.0 mm max. * **Lead Diameter (d):** 0.6 mm. --- ### 5. Storage and Handling * **Moisture Sensitivity:** Ceramic capacitors are generally robust, but the leads should be protected from oxidation. * **Soldering:** Should be soldered using standard wave or manual soldering techniques, ensuring that the body of the capacitor does not exceed the maximum temperature threshold to avoid cracking the ceramic dielectric.