221PF 2KV High Voltage Ceramic Disc CapacitorThis high-reliability 221PF 2KV High Voltage Ceramic Disc Capacitor is engineered to handle high-voltage spikes and transient suppression in demanding electronic circuits. Furthermore, it features a robust ceramic dielectric body coated with flame-retardant epoxy resin, consequently ensuring excellent insulation and environmental protection. Therefore, it is an ideal choice for power supplies, inverters, and high-voltage snubber networks. However, users must ensure the operating voltage does not exceed the 2kV rating to prevent dielectric breakdown. Specifically, the blue disk design provides a compact radial footprint with durable tinned copper leads. Moreover, the low dissipation factor ensures stable performance under high-frequency conditions. Ultimately, these high-voltage capacitors deliver dependable electrical performance for industrial and DIY electronics.
Key Features:
- High Voltage Rating: Withstands up to 2000V DC (2kV), making it suitable for high-potential circuits.
- Stable Capacitance: Offers a standard 220pF (221 marking) capacitance value with tight tolerance.
- Flame-Retardant Coating: Encased in a blue epoxy resin shell, consequently providing superior moisture and flame resistance.
- Low Loss Dielectric: Designed with ceramic materials that minimize energy loss at high frequencies.
- Radial Through-Hole Leads: Features sturdy tinned leads for secure PCB mounting and soldering.
- Compact Disc Profile: Small physical footprint allows for easy integration into crowded circuit boards.
Technical Specifications:
- Capacitance Value: 220 pF (221 Code)
- Rated Voltage: 2000V DC (2 KV)
- Capacitance Tolerance: ±10% (K code)
- Dielectric Material: Ceramic Disc (Class II / Y5P or similar high-voltage formulation)
- Operating Temperature Range: −25°C to +85°C
Mechanical Specifications:
- Body Material: Blue Epoxy Resin Coated Ceramic Disc
- Lead Configuration: Radial Through-Hole Leads
- Lead Material: Tinned Copper-Clad Steel
Dimensions:
- Disc Diameter: ≈ 8.0 mm – 10.0 mm
- Lead Pitch: ≈ 5.0 mm – 7.5 mm
- Lead Length: ≈ 20.0 mm
Pinout and Wiring:
- Non-Polarized Design: Can be inserted into the circuit in either direction without regard to polarity.
- Soldering Guidelines: However, avoid prolonged heat application during soldering to prevent thermal damage to the ceramic core.
Datasheet Reference:
- Download High Voltage Ceramic Disc Capacitor Specification Guide
Commonly Used in:
- Switching Power Supplies: Filtering high-frequency noise and voltage spikes on primary and secondary stages.
- High Voltage Inverters: Suppressing transients in ignition circuits and lighting ballasts.
- CRT and Display Electronics: Managing high-voltage deflection and coupling stages.
Applications:
- Voltage Transient Suppression: Protecting sensitive low-voltage circuitry from high-energy voltage surges.
- Snubber Networks: Damping voltage oscillations across switching transistors and diodes.
- Consequently, it enhances circuit reliability in high-voltage industrial equipment.
Equivalent Models:
- 471PF 2KV Ceramic Capacitor: Higher capacitance alternative (470pF) at the same voltage rating.
- 102PF 1KV Ceramic Capacitor: 1000pF option with lower voltage tolerance.
- 221PF 3KV Ceramic Capacitor: Higher voltage rating variant (3kV) for increased isolation.
Package Includes:
- 10 x 221PF 2KV High Voltage Ceramic Disc Capacitors

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