The **CK45-R3AD151KAVRA** is a high-voltage ceramic disc capacitor manufactured by **TDK Corporation**. This specific part is designed for high-voltage circuits, often used in power supplies and electronic ballasts. --- ## 1. Technical Specifications The following table outlines the primary electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Capacitance** | 150 pF | | **Tolerance** | ±10% (K) | | **Voltage Rating** | 1000V DC (1kV) | | **Temperature Characteristic** | R (Low Dissipation / High Stability) | | **Lead Spacing** | 5.0 mm | | **Mounting Type** | Through-Hole | | **Operating Temperature** | -25°C to +125°C | --- ## 2. Part Number Breakdown Understanding the TDK naming convention helps identify the part's capabilities: 1. **CK45**: Series designation (High Voltage Ceramic Disc). 2. **R**: Temperature characteristic (stable under varying heat). 3. **3A**: Voltage rating (3A = 1000V / 1kV DC). 4. **151**: Capacitance value code ($15 \times 10^1 = 150$ pF). 5. **K**: Tolerance code ($\pm 10\%$). 6. **A/V/R/A**: Packaging, lead shape, and compliance (RoHS) suffixes. --- ## 3. Key Features & Applications ### Features * **High Reliability:** Built to withstand high-stress environments and voltage spikes. * **Low Loss:** The "R" characteristic indicates low dissipation, making it efficient for high-frequency applications. * **Flame Retardant:** Encased in a flame-retardant epoxy resin (UL94V-0 compliant). ### Common Applications * **Snubber Circuits:** Used to suppress voltage transients in switching power supplies. * **Inverters:** Found in LCD backlighting inverters. * **Noise Filtering:** Used in high-voltage DC lines to filter out high-frequency noise. * **Electronic Ballasts:** Utilized in lighting systems to manage current flow. --- ## 4. Safety Considerations When working with the CK45-R3AD151KAVRA, keep the following in mind: * **Derating:** For long-term reliability, it is best practice to operate the capacitor at 70-80% of its rated voltage (1kV). * **Discharge:** High-voltage capacitors can hold a charge even after power is removed. Always discharge safely before handling.