Corona discharge refers to the phenomenon where a localized high voltage between two conductors causes the breakdown of air insulation, producing a characteristic bluish-purple glow. In corona discharge static eliminators, a high voltage is applied to discharge needles to induce this effect.

When corona discharge occurs, the air near the discharge needles ionizes, generating charged ions:

• Applying a positive high voltage to the needle produces positive ions (H₃O⁺, N₂⁺).

• Applying a negative high voltage to the needle produces negative ions (O₂⁻, CO₃⁻)

• This process is fundamental in ESD (electrostatic discharge) control, cleanroom environments, and precision manufacturing, ensuring static-free surfaces for sensitive electronics.

• For optimal performance, modern corona discharge ionizers maintain fast static decay times (<1s) and low ion imbalance (±5V) while complying with ANSI/ESD S20.20 and IEC 61340-5-1 standards.

• Need detailed specifications on corona discharge ionizers? Request a technical datasheet today!