The WKP222MCPEJ0KR is a polypropylene film capacitor manufactured by Vishay. It belongs to Vishay's WKP series, known for their high stability and reliability in demanding applications, particularly those involving high voltages and high frequencies.

Applications

• Snubber circuits: Used in power supplies, inverters, and motor drives to suppress voltage transients and protect switching devices.
• High-frequency applications: Suitable for circuits operating at high frequencies due to their low equivalent series resistance (ESR) and equivalent series inductance (ESL).
• 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, low losses, and high insulation resistance.
• 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 WKP222MCPEJ0KR typically has a capacitance value of 2.2 nF (2200 pF) with a tolerance of ±10%. The voltage rating is usually around 630VDC. 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 capacitor is designed for applications where stability, high voltage capability, and low losses are critical.