The part number **NCD682K2KVY5PD2LSTB25LSF** refers to a High Voltage Ceramic Disc Capacitor. These components are designed to store energy and filter noise in circuits with high operating voltages. --- ### 1. Component Specification Table | Attribute | Details | | :--- | :--- | | **Component Type** | High Voltage Ceramic Disc Capacitor | | **Capacitance** | 6800 pF (6.8 nF) | | **Voltage Rating** | 2000V (2kV) DC | | **Tolerance** | ±10% (denoted by 'K') | | **Temperature Coefficient** | Y5P (±10% variation from -30°C to +85°C) | | **Lead Style** | Long Straight Leads / Taped (for automated assembly) | --- ### 2. Breakdown of the Part Number The alphanumeric string defines the physical and electrical characteristics of the capacitor: 1. **NCD**: Manufacturer series prefix (likely NIC Components). 2. **682**: Capacitance code. The first two digits (68) are the value, and the third (2) is the multiplier (10²). $68 \times 100 = 6800$ pF. 3. **K**: Tolerance code ($K = \pm10\%$). 4. **2KV**: Rated voltage (2000 Volts). 5. **Y5P**: Dielectric material/Temperature characteristic. This is a Class II ceramic, offering high volumetric efficiency. 6. **D2LSTB**: Packaging and physical dimensions code (Diameter, Lead Spacing, and Taping format). 7. **25LSF**: Specific lead spacing (e.g., 2.5mm or 5mm depending on the sub-catalog) and RoHS compliance (Lead-Free). --- ### 3. Key Electronic Functions * **De-coupling/Bypassing**: Used to shunt high-frequency noise to the ground in high-voltage power supplies. * **Snubber Circuits**: Used in switching power supplies to absorb voltage spikes caused by inductive loads. * **Filtering**: Smooths out fluctuations in DC high-voltage lines. * **Coupling**: Allows AC signals to pass while blocking DC components in high-voltage stages of amplifiers or transmitters. --- ### 4. Application Environments Because this part is rated for **2kV**, it is typically found in: * CRT monitors and TV power boards. * Lighting ballasts and LED drivers. * High-voltage DC-DC converters. * Industrial equipment power modules.