Key benefits Reliable overcurrent protection: Each resettable polymer fuse (PTC) protects circuits from sustained overcurrent by increasing resistance when a fault occurs, then automatically resetting when the fault and heat are removed. Cost-effective and maintenance-friendly: Reusable protection eliminates the need to replace single-use fuses after a fault, reducing downtime and replacement parts. Compact, through-hole DIP form factor: JK30 polymer DIP packaging is easy to install in standard PCB layouts for small to medium electronic assemblies. Wide range of trip ratings: Multiple current options let you match protection precisely to your circuit needs. Product details Quantity: 100 pcs per pack. Model: JK30 polymer resettable fuse (DIP). Voltage rating: 30 V. Brand: JIN Ke. Material: Polymer PTC thermistor (polymeric fuse). Size designation: 1.6A (as specified). Available current ratings: 0.5A, 0.75A, 0.9A, 1.1A, 1.35A, 1.6A, 1.85A, 2A, 2.5A, 3A, 4A, 5A, 6A, 7A, 8A, 9A, 10A. Function and performance Protects against sustained overcurrent by increasing resistance at or above its trip current; returns to low-resistance state after cooling. Designed for use in circuits up to 30 V. Multiple precise current ratings allow selection for intended normal operating current and acceptable trip threshold to prevent nuisance trips while protecting components. Compatibility and applications Compatible with through-hole PCB assemblies and standard DIP mounting for consumer and industrial electronics. Typical use scenarios: 1. Power supply protection: Install in low-voltage power rails of desktop or embedded power supplies to prevent damage from short circuits or overloads. 2. Battery-powered equipment: Protect battery packs, chargers, and portable devices from overcurrent conditions while allowing automatic reset after faults clear. 3. LED lighting and motor control: Safeguard LED drivers, small DC motors, and controllers from sustained overloads without needing fuse replacement. Additional notes Choose the current rating that exceeds the circuit’s normal operating current by an appropriate margin to avoid nuisance trips while still providing protection. Pack of 100 offers convenient supply for manufacturing, repairs, or prototyping. Manufacturer JIN Ke JK30 series polymer resettable fuses.