The part number **ECKATS102MB** refers to a high-voltage ceramic disc capacitor manufactured by **Panasonic**. These components are specifically designed for interference suppression and safety across line applications. ### 1. Technical Specifications Below are the primary electrical and physical characteristics of the ECKATS102MB: | Feature | Specification | | :--- | :--- | | **Capacitance** | 1000 pF (1.0 nF) | | **Tolerance** | ±20% (indicated by 'M') | | **Voltage Rating** | 250V AC (X1/Y2 Safety Rated) | | **Dielectric Material** | Ceramic (Class 2) | | **Temperature Characteristic** | B (±10% max change over range) | | **Mounting Type** | Through-Hole | | **Lead Style** | Radial Disc | --- ### 2. Part Number Breakdown Understanding the nomenclature helps identify the component's role: * **ECK**: Panasonic's series prefix for Ceramic Capacitors. * **ATS**: Sub-series indicating safety standard compliance (Class X1/Y2). * **102**: Capacitance code. The first two digits (10) are significant figures, and the third (2) is the multiplier ($10 \times 10^2 = 1000$ pF). * **M**: Tolerance code ($\pm20\%$). * **B**: Packaging or lead style code (typically bulk or specific lead crimp). --- ### 3. Key Features and Applications The ECKATS series is engineered for durability and safety in power-sensitive environments. #### Safety Ratings * **Class X1:** Designed for use between "Line and Line." It can withstand high impulse voltages (up to 4kV). * **Class Y2:** Designed for use between "Line and Ground." These are "fail-safe" capacitors; if they fail, they are designed not to lead to an electric shock. #### Common Applications 1. **EMI/RFI Filtering:** Removing high-frequency noise from AC power lines. 2. **Switching Power Supplies (SMPS):** Used in the input filter stage. 3. **Household Appliances:** Ensuring washing machines, fridges, and ovens meet electromagnetic compatibility (EMC) standards. 4. **Antenna Coupling:** Providing isolation in radio and TV circuits. --- ### 4. Circuit Example In a typical power supply filter, the capacitor is placed as follows: ```text AC Line (L) ----[ Fuse ]----------+---------- (Rectifier) | [ECKATS102MB] <-- X-Capacitor Mode | AC Neutral (N) -------------------+---------- (Rectifier) ```