AHS300-2 Circuit Protection

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PTC Resettable Fuses, or also commonly known as Polymeric Positive Temperature Coefficients (PPTCs) resettable fuses, are electronic components that are used for the protection of current circuits against overcurrents. They also provide the functionality of resetting themselves automatically after the current has gone down to a safe level without any additional measures. The AHS300-2 is a PTC Resettable Fuse series with an ability of protecting circuits up to 15V, and is designed to replace traditional fuses and/or surge suppressors. It is often used in systems with high-energy requirements, such as automotive, electronic, medical and industrial applications.

The working principle of the AHS300-2 lies in its temperature-sensitive material, also known as PPTC. When the current within a circuit goes over the rated value, the PPTC material within the AHS300-2 fuse will heat up and melt, which consequently causes an infinite resistance within the circuit and the current will be forced to drop. This forced drop in the current is a pre-programmed protection that prevents potentially expensive and damaging failures or explosions. Once the current has gone down to a safe level, the PPTC material will cool down, re-solidify, and bring the resistance back to a low level. This will allow the circuit to work with the same efficient, optimal performance before the overcurrent event. This is why PTC Resettable Fuses are also known as self-resetting fuses.

The AHS300-2 is ideally used in places where protection against both overcurrent and overvoltage is needed, such as in power supplies, battery chargers, LED lighting systems, communication equipment, vehicle power systems, HVAC systems, and many more. In these applications, the AHS300-2 will be able to protect components from overvoltage as well as prevent equipment damages and fires. As an additional benefit, Glow-Wire 950°C testing are able to be passed with this device.

The AHS300-2 series is also easy to install and has a compact design, which makes it ideal for applications with minimal space restrictions. Furthermore, the device also comes with a wide range of sizes and current values to meet virtually any application requirements. For added convenience, AHS300-2 devices can be daisy chained in applications where more than one fuse is needed.

In conclusion, the AHS300-2 PTC Resettable Fuses are designed for applications where the circuit’s current is expected to fluctuate. It is an efficient, durable and cost-effective solution for circuit protection that can be used in a wide variety of applications, such as power supplies, LED lighting systems, battery chargers, HVAC systems, vehicle power systems, communication equipment, and much more.

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