The **ECK-ATS102KB** is a specific type of high-voltage ceramic disc capacitor manufactured by **Panasonic**. These components are primarily designed for interference suppression and safety across-the-line applications. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its electrical characteristics: | Parameter | Specification | | :--- | :--- | | **Capacitance** | 1000 pF (1 nF) | | **Capacitance Code** | 102 (10 + 2 zeros) | | **Tolerance** | ±10% (Code: K) | | **Safety Class** | Y1 (Line-to-ground) / X1 (Line-to-line) | | **Rated Voltage** | 440V AC (X1) / 400V AC (Y1) | | **Dielectric Material** | Ceramic (B / Y5P characteristics) | | **Mounting Type** | Through-Hole (Radial Leads) | --- ### 2. Key Features * **Safety Standards:** These capacitors are "Safety Rated," meaning they are designed to fail in a way that does not lead to electric shock or fire. They are certified by international agencies (UL, VDE, CSA, etc.). * **Flame Retardant:** The exterior is typically coated with a flame-retardant epoxy resin (UL94V-0 compliant). * **High Voltage Withstand:** Designed to handle significant surges (up to 8kV impulses depending on the specific sub-series) commonly found in power supplies. --- ### 3. Common Applications The ECK-ATS series is typically used in the "Front End" of power electronics: 1. **EMI/RFI Filtering:** Suppressing electrical noise generated by switching power supplies. 2. **Y-Capacitor Usage:** Connected between a live/neutral wire and the chassis ground to filter common-mode noise. 3. **X-Capacitor Usage:** Connected across the AC lines to filter differential-mode noise. 4. **Household Appliances:** Found in vacuum cleaners, washing machines, and power adapters. --- ### 4. Part Number Breakdown To understand the component better, here is how the code is structured: * **ECK**: Panasonic Ceramic Capacitor prefix. * **ATS**: Series identifier (Safety Standard recognized). * **102**: Capacitance (10 x 10^2 pF). * **K**: Tolerance (±10%). * **B**: Temperature characteristic (B/Y5P).