High-Voltage Y1 Safety Capacitor

Y1-Class capacitors are line-to-ground safety-rated suppression capacitors, ideal for EMI filtering, surge mitigation, and AC power conditioning. Commonly used in adapters, LED drivers, home appliances, chargers, and industrial power systems, they offer 400–500VAC rating with >5kV impulse withstand capability.

Y1 capacitors are encapsulated with flame-retardant epoxy (94V-0) and offer high insulation resistance. Typical capacitance values range from 470pF to 4700pF, designed for long life and high reliability in EMI-critical applications.

• EMI filtering in AC input circuits
• Power adapters and LED drivers
• Ground loop suppression in home appliances
• Electric tools and battery chargers
• Line-to-ground noise suppression in SMPS
• EMI isolation for industrial controllers