JK30 Plug-In Self-Resetting Fuse Key benefits Protects downstream components from overcurrent without the need to replace fuses after a fault. Minimizes downtime and maintenance costs by automatically resetting when the fault clears. Compact, plug-in design simplifies installation and replacement, saving time in service and manufacturing. Main features Self‑resetting polymer fuse (PTC): provides reliable overcurrent protection and automatic recovery after an overload or short circuit. Plug-in design: installs quickly and tool-free in compatible sockets, holders, or PCB edge connections for easy field or production use. Compact form factor: fits tight layouts and standard 30V circuits for space-constrained applications. Repeatable protection: stable trip characteristics and consistent performance over many reset cycles. Specifications Current ratings (select the rating that matches your load and protection needs): 0.9A, 1.1A, 1.35A, 1.5A, 1.6A, 1.85A, 2A, 2.5A, 3A, 4A, 5A, 6A, 7A, 8A, 9A, 10A. Voltage rating: 30V DC — suitable for low‑voltage DC circuits and power supplies. Material/type: polymer self‑resetting fuse (PTC). Compatibility and integration Designed for easy integration with common PCB edge connectors, in-line holders, and standard plug sockets that accept JK30-style devices. Compact footprint makes it compatible with tight enclosures and densely populated boards used in modern electronics. Performance and reliability Fast response to overcurrent events with stable trip levels to protect sensitive circuits. Repeatable and durable: engineered to withstand many trip/reset cycles while maintaining protection characteristics. Provides dependable protection for electronic modules and power systems where manual fuse replacement is impractical. Typical applications DC power supplies and electronic control modules. Automotive 12V and 24V systems and accessories. LED drivers, small motor drives, compact consumer electronics. Use scenarios 1) 12V automotive accessory: prevents battery drain and protects wiring and devices from short circuits without requiring fuse replacement after a transient fault. 2) 24V DC motor driver in an industrial panel: protects the driver from overloads and allows automatic recovery after the overload condition is cleared. 3) Low-voltage LED driver: guards against short circuits and surges to prolong LED and driver life while reducing service calls. Ordering note Choose the JK30 current rating that matches your circuit’s steady-state current and desired trip margin. Voltage is 30V DC.