Related Products
More items about semiconductor fuse
We Have The Best Solutions for Your Business
Founded in 2013 in Dongguan, Guangdong, our company is a professional manufacturer ofelectronic protection devices. For years, we have been focusing on the protection device field, withan integrated team for development, production and sales, committed to providing customers withproducts of perfect performance and reliability.
Dur moin products include, fuses, fuse ho ders, fuse boxes, outomotive fuses, gutomotive fuse holders, Dcfuses, high-voltage fuses, new energy fuses ond other peripherol occessories, These products ore widelyused in multiple fields such os consumer electronics, outomotive electronics, power equipment,communicotion systems ond new energy. Aiming ot stoble performonce ond reliobility, our products hove notonly guickly won recognition in the domestic morket but olso been exported overseos, enjoying wide morketpopulority.
As 0 competitive compony in the protection device industry, we hove been committed to technologicol R&Dinvestment, quipped with 0 professionol R&D teom, we continuously promote product innovotion to ensureour wide product coveroge ond occelerote morket opplicotion speed of our products.
We olways toke quolity os our core goal and strive to be customer-oriented. Our products hove obtoined UL
cULus, Tuv, CE, COC ond other product certificotions, ond ore in complionce with ROHS ond REACH directives.
"What is a 'current-limiting' fuse and why is it important?"
You've seen the term "current-limiting" and need to understand its significance. The problem is that a short circuit can produce a massive peak current. A non-limiting fuse simply opens after the peak has passed. A current-limiting fuse, however, opens so quickly that it stops the current from ever reaching its full potential peak. The solution is to use a semiconductor fuse, which is inherently current-limiting. This feature from a GFEFUSE semiconductor fuse not only protects the semiconductor but also reduces the stress on the entire electrical system.
"How to protect a solid-state relay (SSR) or soft starter?"
You are using an SSR or a soft starter, which are built with sensitive thyristors (SCRs). The problem is that, like IGBTs, these components can be easily damaged by short-circuit currents. The solution is the same as for a VFD: you must protect each phase with a fast-acting semiconductor fuse. A GFEFUSE semiconductor fuse, correctly coordinated with the SSR's I²t rating, is the only way to ensure the long-term reliability of your solid-state motor control system.
"Do I need a fuse on the DC bus of a solar inverter?"
Yes, protecting the DC bus link inside a solar inverter is a critical application. The problem is that a fault in the inverter's IGBTs can create a short circuit fed by the immense energy from both the solar array and the inverter's capacitors. The solution is to install a semiconductor fuse on the DC bus. A GFEFUSE high-voltage DC semiconductor fuse is designed to handle this, providing the high-speed protection needed to prevent a catastrophic failure of the inverter.
"How to select a fuse based on an I²t rating?"
You need to perform a fuse coordination study using I²t values. The problem is knowing how to use the data correctly. The rule is simple: The clearing I²t of the fuse must be less than the withstand I²t of the semiconductor. The best practice solution is to choose a semiconductor fuse whose clearing I²t is no more than 75% of the semiconductor's rating, providing a safe margin. GFEFUSE provides all the necessary I²t data and expert support to help you perform this critical calculation and select the right semiconductor fuse.
User Reviews
What users say about GFEFUSE
Frequently Asked Question
Do you have any question?
GFEFUSE is a trusted expert because we specialize in the advanced engineering required for these devices. We utilize pure silver elements, sophisticated arc-quenching technology, and rigorous testing to guarantee every semiconductor fuse provides the ultra-fast performance and low I²t values needed to reliably protect the most sensitive and expensive power electronic components.
No, they are crucial for both AC and DC circuits. A semiconductor fuse is essential for protecting the input of an AC drive, the DC bus link inside the drive, and the output of DC power supplies and rectifiers. GFEFUSE offers a wide range of fuses with high AC and DC voltage ratings.
These are IEC designations for a semiconductor fuse. "aR" stands for "partial-range" protection, meaning it offers extremely fast protection against short circuits only and must be paired with another device for overload protection. "gS" or "gR" stands for "full-range" protection, meaning the fuse will safely open on both short circuits and lower-level overload currents.
The single most important specification is the clearing I²t rating. This value represents the total thermal energy the fuse lets through before it clears a fault. This fuse I²t value must be lower than the I²t withstand rating of the semiconductor being protected to ensure the fuse blows before the semiconductor is damaged.
You cannot use a regular fuse because it is far too slow. A semiconductor can be destroyed by thermal energy in less than a millisecond. A semiconductor fuse is designed to open the circuit in microseconds and, more importantly, to limit the peak current, preventing the destructive energy from ever reaching the component it protects.
A semiconductor fuse is an extremely fast-acting, high-speed fuse designed to provide short-circuit protection for sensitive solid-state electronic devices, such as diodes, SCRs (Silicon Controlled Rectifiers), and IGBTs (Insulated Gate Bipolar Transistors), which are found in inverters, VFDs, and rectifiers.
Our updates and blog posts
Square high speed fuse: The Ultimate 1500 V DC Guardian for Energy Storage & EV Systems
Discover how the Square high speed fuse from GFEFUSE delivers 1500 V DC, 100 kA protection for BESS, EV chargers and wind converters. UL & IEC approved, low I²t design.
North Americansemiconductor fuse: The 1000 V DC Fast-Acting Shield EV & BESS Engineers Trust
Discover GFEFUSE North Americansemiconductor fuse—1000 V DC, 50 kA, UL & IEC approved. Ideal for EV chargers, BESS, PV inverters. Low I²t, high cycling life.
Photovoltaic fuse: The 1500 V DC Guardian Every Solar Array Needs
Discover GFEFUSE Photovoltaic fuse—1500 V DC, 1–30 A, 50 kA, UL-248-19 & IEC 60269-1/6 approved. Ideal for string and combiner boxes. Low I²t, high cycling life.