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Inrush Current Limiters
Inrush Current Limiters are in stock with same-day shipping at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many inrush current limiter manufacturers including Amphenol, STMicroelectronics, TDK, Vishay & more.
Inrush current limiters are protection components designed to control and reduce the high surge currents that can occur when electrical equipment is first powered on. By temporarily restricting current flow during startup, they help protect sensitive components, extend equipment lifespan, and improve overall system reliability. These devices are commonly used in power systems where large input capacitors, transformers, or motors can create excessive startup current conditions.
Types: The most common inrush current limiter types include NTC thermistor inrush current limiters, PTC current limiting devices, fixed-resistance inrush limiters, resettable inrush protection devices, high-energy inrush current limiters, and industrial-grade current limiting components, each designed for specific surge suppression and startup protection requirements.
Applications: Inrush current limiters are widely used in power supplies, AC-DC converters, motor control systems, industrial automation equipment, renewable energy systems, telecommunications infrastructure, consumer electronics, and battery charging systems to reduce startup current and protect electronic circuitry.
Selection requirements: To choose inrush current limiters, evaluate resistance value, steady-state current rating, surge energy capability, operating temperature range, recovery characteristics, power dissipation, package type, environmental durability, and suitability for the intended electrical and operating conditions.
