The core technological advantages of FUZETEC self-healing fuses
FUZETEC has achieved "intelligent protection" of fuses through innovative composite technology of polymer and nano conductive grains. When the PPTC (Polymer Positive Temperature Coefficient) material is overcurrent or overheated, the internal conductive chains will rapidly break due to thermal expansion, causing the resistance to jump to the megaohm level, thereby cutting off the circuit; After the fault is eliminated, the cooling is reset without manual intervention. This feature significantly reduces equipment maintenance costs and downtime.
Detailed explanation of the five core advantages
FUZETEC's automatic recovery capability
Traditional fuses need to be replaced after melting, while Fuzhi products can provide repeated protection up to 8000 times. For example, in scenarios such as motor stalling and USB port short circuits, automatic restoration of conductivity after troubleshooting significantly improves equipment durability and user experience.
Millisecond level fast response and precise protection
Adopting a low impedance design (some models only have a few milliohms), the normal power consumption is almost negligible; The protection can be triggered in milliseconds (such as 1ms at 6A current) during overcurrent. Faster than ceramic CPTC by a hundred times, avoiding damage to precision components due to delayed protection.
Miniaturization design optimizes space utilization
FUZETEC offers full-size surface mount packaging (0603/0805/1812, etc.), such as FSMD1812 series with a thickness of less than 1mm. Ultra high-density integration is suitable for compact spaces such as mobile phones and IoT devices, and replacing traditional fuses can save more than 70% of PCB area.
Wide temperature range stability and dual protection mechanism
The working temperature ranges from -40 ℃ to 85 ℃, and it has temperature current reduction compensation (automatic lowering of holding current threshold at high temperatures). When the ambient temperature reaches 85 ℃, it can simultaneously achieve dual protection against overheating and overcurrent, especially suitable for harsh environments such as automotive electronic engine compartments.
Industrial grade reliability and long lifespan
Through high temperature and humidity testing at 85 ℃/95% RH and 500 cycles of -30~80 ℃ verification, the resistance change rate is lower than the industry standard. Excellent thermal stability, no metal melting fatigue issues, and a lifespan far exceeding traditional solutions.
Application scenarios and industry value
FUZETEC products have covered:
Consumer electronics: overcurrent protection for mobile fast charging interfaces (such as FSMD200R series)
Automotive electronics: headlight control module, ECU power protection (withstand voltage up to 600V)
Industrial control: PLC signal terminal, motor stall protection (supporting 120V rectifier)
New energy: photovoltaic inverters, battery management systems (low resistance to reduce energy consumption)
FUZETEC has redefined circuit protection standards with its three core advantages of self recovery, miniaturization, and wide temperature range protection. Its technology not only solves the pain points of frequent electronic device failures, but also provides underlying support for future devices designed with high density and reliability. When selecting, it is recommended to match the model with the working voltage (6V-600V), holding current (0.05A-100A), and packaging requirements (such as automotive grade HL series/SMT FSMD series) to achieve optimal protection efficiency.
The data sources of this article are: official parameters of Fuzhi Technology, research on the working principle of PPTC, and industrial application testing reports.