Glass cartridge fuses for 125V circuits, 4A rating, silver-plated
Manufacturer： ['eaton', 'copper-bussmann', 'bussmann']
The **F01A125V4A Series** is a high-performance line of resettable polymeric positive temperature coefficient (PPTC) overcurrent protection devices, designed to safeguard sensitive electronic circuits from overcurrent and short-circuit conditions. These devices are widely recognized for their reliability, compact form factor, and ability to automatically reset after a fault condition is resolved, making them an ideal choice for applications requiring robust and maintenance-free circuit protection.
One of the key features of the F01A125V4A Series is its use of advanced polymeric materials, which enable precise and repeatable trip characteristics. These devices operate by increasing their resistance significantly when exposed to overcurrent conditions, effectively limiting the current flow and protecting downstream components. Once the fault is removed and the current returns to normal levels, the device cools down and resets to its low-resistance state, ensuring uninterrupted operation without the need for manual intervention. This self-resetting capability makes the F01A125V4A Series particularly suitable for applications where frequent overcurrent events may occur.
The F01A125V4A Series is designed with a compact footprint, making it ideal for space-constrained applications such as portable electronics, battery packs, and IoT devices. Its robust construction ensures reliable performance across a wide temperature range, typically from -40°C to +85°C, making it suitable for use in harsh environments. Additionally, the series offers a range of hold current and trip current ratings, allowing designers to select the optimal device for their specific application requirements.
Typical applications for the F01A125V4A Series include overcurrent protection in consumer electronics, such as smartphones, tablets, and laptops, as well as in automotive systems, industrial control equipment, and power supplies. Its ability to provide reliable protection against overcurrent and short-circuit conditions, combined with its compact size and self-resetting functionality, makes it a versatile solution for a wide range of industries. Whether used in high-density circuit boards or in systems exposed to fluctuating environmental conditions, the F01A125V4A Series delivers consistent performance and peace of mind for designers and engineers alike.