Kfuse
Guard power and signal paths against damaging current and voltage events with Kfuse circuit protection products.
Product categories

Overcurrent protection
Excess-current damage prevention

Overvoltage protection
Voltage surge protection

ESD protection
Electrostatic damage prevention

Specialty resistor
Application-specific resistance

Surface gas tube
High-energy surge protection
Powering diverse applications





Why customers choose
Kfuse
Engineers select Kfuse for compact fuses and surge-protection components covering various applications, including stringent industries.
Common questions
Kfuse offers high-voltage ceramic-tube fuses for energy storage, industrial controls, precision instruments, and other high-voltage equipment. The HV630 series supports ratings from 200 mA to 30 A at up to 660 V AC or DC. HV630 fuses provide a rated breaking capacity of 1,000 A and operate across a -40°C to 125°C temperature range. Engineers should verify the required fuse dimensions, mounting configuration, melting characteristics, voltage rating, and interrupting capacity.
The Kfuse 5TS series provides time-delay overcurrent protection for lighting equipment, power supplies, and adapters. These compact axial-lead ceramic fuses offer high breaking capacity and current ratings from 1 A to 10 A.
Kfuse’s 5TS/slow-blow axial lead fuses are a perfect example of the firm’s multifaceted approach to product development. The brand wanted the series to give manufacturers a wide range of design options, so it features a voltage and interruption scale from 200A at 500VAC to 10000A at 125VAC. The line also boasts a compact form factor, making it ideal for smartphones and consumer electronics power supplies. The company’s KHV110.PV photovoltaic fuses provide original equipment manufacturers (OEMs) with similarly robust design versatility. The component family features a current rating scale of 1A to 30A, which makes it suitable for inclusion in a variety of solar panel projects. In addition, the firm’s Type KET/radial lead fuse is one of its most outstanding offerings. The component provides robust overcurrent protection and excellent shock and vibration resistance. It also has a discreet form factor that consumes minimal board space. Those characteristics make it more than suitable for air conditioners, battery chargers, televisions, and various white goods.
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