Ceramic Disc Capacitor is the most classic single ceramic layer, through-hole mount (PTH) capacitor known for its low cost, high voltage resistance, and excellent high-frequency characteristics.
Features:
1. Simple structure and extremely low cost: one of the most cost-effective capacitors for mass production.
2. Excellent high-frequency characteristics: extremely low ESR/ESL, low high-frequency impedance, suitable for RF/radio frequency.
3. Wide voltage range: Conventional 50V~10kV+, high-voltage models are commonly used in power supply and ignition systems.
4. Heat resistant, moisture resistant, and highly insulating: suitable for harsh environments.
5. Capacity range: 1pF~0.1 μ F (capacity is relatively small compared to MLCC).
6. Moderate volume: The standard disc diameter is about 5-20mm.
Applications:
1. High frequency circuits: radio frequency (RF), antennas, signal coupling/decoupling, resonant circuits.
2. High voltage circuits: switching power supply, high-voltage package, igniter, X-ray/CT medical equipment.
3. EMI suppression: Safety Y capacitor (cross wire/ground wire), power port noise filtering.
4. General scenarios: bypass/isolation/buffering of household appliances, energy-saving lamps, chargers, industrial control, and automotive electronics.