The WK0222KCPCRAKR is a film capacitor manufactured by Vishay. It's part of Vishay's WKP series of polypropylene film capacitors known for their high stability and reliability in demanding applications.

Applications

• Snubber circuits: Used in power supplies and inverters to suppress voltage transients and protect switching devices.
• High-frequency applications: Suitable for circuits operating at high frequencies due to their low ESR (Equivalent Series Resistance) and ESL (Equivalent Series Inductance).
• Lighting ballasts: Employed in electronic ballasts for fluorescent and LED lighting.
• Power factor correction (PFC): Used in PFC circuits to improve the power factor of electronic devices.
• Resonant circuits: Ideal for resonant circuits due to their stable capacitance and low losses.

Features

• Polypropylene film dielectric: Provides excellent stability and low losses.
• Self-healing properties: Allows the capacitor to recover from minor breakdowns, extending its lifespan.
• High voltage rating: Designed to withstand high voltages, making it suitable for demanding applications.
• Low ESR and ESL: Minimizes losses and improves performance at high frequencies.
• Flame-retardant epoxy resin coating: Enhances safety and protects the capacitor from environmental factors.

Benefits

• Improved reliability: The self-healing properties and robust construction ensure long-term reliability.
• Enhanced performance: Low ESR and ESL contribute to improved efficiency and performance in high-frequency circuits.
• Increased safety: The flame-retardant coating enhances safety and prevents fire hazards.
• Reduced energy consumption: High power factor correction capabilities can help reduce energy consumption.
• Stable operation: Polypropylene film dielectric provides stable capacitance over a wide range of temperatures and frequencies.

Additional Details

The WK0222KCPCRAKR typically features a capacitance value of 2.2 nF (2200 pF) with a tolerance of ±10%. The voltage rating is usually around 2000VDC. The operating temperature range is typically -40°C to +105°C. This capacitor is constructed with a metallized polypropylene film and encapsulated in a flame-retardant epoxy resin. It is commonly available in a through-hole mounting configuration. The specific dimensions and lead spacing can vary; refer to the Vishay datasheet for precise details. This type of capacitor is designed for applications where stability, high voltage capability, and low losses are critical.