## Analysis of Electronic Component: CK45-R3AD221KAVRA The **CK45-R3AD221KAVRA** is a high-voltage ceramic disc capacitor manufactured by **TDK Corporation**. It is specifically designed for high-reliability applications, often found in power supplies and electronic ballast circuits. --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify the specific characteristics of the component: | Code Segment | Meaning | Specification | | :--- | :--- | :--- | | **CK45** | Series Name | High Voltage Ceramic Disc (Commercial Grade) | | **R3AD** | Voltage Rating | 1kV DC (1000V) | | **221** | Capacitance Value | 220 pF (22 x 10^1) | | **K** | Capacitance Tolerance | ±10% | | **A** | Lead Type | Vertical Kink (Long Lead) | | **V** | Packing Style | Bulk / Ammo Pack (depending on secondary suffix) | | **RA** | Halogen-Free | Compliance with environmental standards | --- ### 2. Technical Specifications The following table summarizes the primary electrical and physical parameters: | Parameter | Value | | :--- | :--- | | **Capacitance** | 220 pF | | **Rated Voltage** | 1,000 V DC (1kV) | | **Temperature Characteristic** | R (Low dissipation factor, stable characteristics) | | **Operating Temperature Range** | -25°C to +125°C | | **Dissipation Factor (tan δ)** | 0.2% Max | | **Insulation Resistance** | 10,000 MΩ Minimum | | **Mounting Type** | Through-Hole | --- ### 3. Key Applications Due to its high voltage rating and compact disc design, this part is commonly used in: * **Power Supplies:** Used for snubber circuits and noise suppression. * **Lighting:** Electronic ballasts for fluorescent or LED lighting. * **Inverters:** High-frequency switching power conversion. * **TV/Monitors:** Horizontal resonance circuits in older CRT units or power stages in modern displays. --- ### 4. Features 1. **High Reliability:** Designed to withstand high voltage stress over long periods. 2. **Flame Retardant:** The exterior coating is usually made of flame-retardant epoxy resin (UL94V-0 compliant). 3. **Low Loss:** The "R" temperature characteristic ensures minimal energy loss during operation.