The PHE842MA4470MR17 is a Radio Frequency Interference (RFI) suppression capacitor manufactured by Kemet. This capacitor is specifically designed to filter out unwanted noise and interference from the power line, ensuring the proper operation of sensitive electronic equipment. It is typically used in applications where compliance with electromagnetic compatibility (EMC) standards is required.

Applications

• Power Line Filtering: Used to filter out noise and interference from AC power lines in various electronic devices.
• Switching Power Supplies: Employed in switching power supplies to reduce conducted emissions and improve EMC performance.
• Motor Control Circuits: Used in motor control circuits to suppress noise generated by the motor and prevent interference with other equipment.
• Lighting Ballasts: Incorporated into electronic ballasts for fluorescent and LED lighting to reduce EMI and comply with regulatory standards.
• Household Appliances: Used in washing machines, refrigerators, and other appliances to reduce electrical noise.

Features

• RFI Suppression: Designed to suppress radio frequency interference and noise from AC power lines.
• Safety Certified: Typically safety-certified to meet regulatory requirements for use in power line applications.
• Metallized Polypropylene Film: Constructed using metallized polypropylene film for excellent electrical performance and reliability.
• Self-Healing Properties: Exhibits self-healing properties, allowing it to recover from minor voltage breakdowns and maintain performance.
• High Voltage Rating: Offers a high voltage rating suitable for AC power line applications.
• Flame Retardant Construction: Features flame-retardant materials for enhanced safety.

Benefits

• Reduced Interference: Filters out unwanted noise and interference, improving the performance and reliability of electronic equipment.
• EMC Compliance: Helps to meet electromagnetic compatibility (EMC) standards and regulatory requirements.
• Enhanced Safety: Provides enhanced safety due to its safety certifications and flame-retardant construction.
• Long Lifespan: Offers a long lifespan due to its robust construction and self-healing properties.
• Improved Power Quality: Helps to improve the quality of power supplied to sensitive electronic devices.

Additional Details

The PHE842MA4470MR17 is typically connected between the line and neutral conductors of an AC power line. The capacitor value is selected to provide optimal noise suppression at the frequencies of concern. Proper installation and grounding techniques are essential to ensure effective noise filtering. The capacitor should be mounted in a location where it is protected from physical damage and extreme temperatures.