5 pcs SCK302R5 Miniature Thermistors are designed as sensitive inrush current limiters. Each thermistor features a diameter of 30 mm, a nominal resistance of 2.5R, and an 18A current rating. This pack provides a reliable, passive solution to control startup surges in power supplies and electronic circuits. Key benefits Reduces startup inrush current to protect power supplies, fuses, wiring, and other components from surge damage Helps minimize voltage fluctuations and electrical noise during turnon for smoother equipment operation Simple, passive solution with no active circuitry required, suitable for reliable long term use Robust design suitable for repeated startup cycles and demanding applications Package includes 5 pieces, supporting multiple assemblies or spare parts Key attributes Model: SCK302R5 Type: Miniature thermistors used as a sensitive temperature inrush current limiter Diameter: 30 mm Nominal resistance: 2.5R Current rating: 18 A Quantity: 5 pcs Applications and use cases Inrush current limiting in switching power supplies for consumer electronics and appliances Protection and startup surge control in LED driver power supplies Replacement or provisioning for power adapters and other equipment where startup surge suppression is beneficial This product delivers a compact, reliable means to manage inrush currents while maintaining straightforward compatibility with designs needing a 30 mm diameter thermistor with a 2.5R resistance and 18 A rating.