Power Integrations Unveils 4th Generation of Pioneering CAPZero™ X-Capacitor Discharge IC Family

What happened

Power Integrations (NASDAQ: POWI) introduced CAPZero-4, the fourth generation of its CAPZero™ family of X-capacitor discharge ICs, for industrial and consumer applications. The device reduces system no-load and standby input power by up to 1000 mW – critical when total system standby power requirements can be as low as 300 mW – while consuming less than 1 mW itself to support zero-watt no-load operation, and it features an operating temperature range of -40 deg. C to 125 deg. C for demanding outdoor industrial applications. CAPZero-4 is pin-to-pin and package compatible with CAPZero-3, allowing adoption without redesign, and supports AC-DC converters with line-to-neutral input capacitance between 100 nF and 6 μF, suiting appliances requiring ErP Lot 6 compliance and adapters requiring ultralow no-load consumption (less than 300 mW). Key features include ultra-low power consumption below 0.75 mW at 230 VAC, extended -40 deg. C to 125 deg. C operating temperature, drop-in replacement via package and pin compatibility with CAPZero-3, and compliance with IEC 60335, EN/IEC 62368-1 (NEMKO), UL 62368-1, and GB 4943.1 (CQC) safety standards. Since introducing the technology in 2010, Power Integrations has shipped more than one billion CAPZero ICs.

Impact and signal

Affected components and suppliers

Source and time

Source: EE Journal · 10/27/2026 · View original source