Fuse selection is a step that circuit design engineers must be cautious about. If the protective components of the circuit are not selected properly, the entire process of powering on the circuit will be affected, and the normal use of the product will also be affected. So today, let's learn about the ten key points of fuse selection: Key points for fuse selection: rated current; Key points for fuse selection 2: rated voltage; Key points for fuse selection: environmental temperature; Key points for fuse selection: voltage drop/cold resistance; Key points for fuse selection: fusing characteristics: overload capacity, time/current characteristics; Key point six for fuse selection: breaking capacity; Key point seven for fuse selection: melting heat value; Key points for fuse selection: durability (service life); Key points for fuse selection nine: structural features: appearance/size, installation form; Key points for fuse selection: safety certification.
Recoverable fuses are circuit protection components that many electronic industries consider first. They are widely used in transformers, security equipment, lighting fixtures, ballasts, instruments, telephone lines, and other fields, benefiting from the development of new technologies such as digital technology, communication technology, and new energy, In the first ten years, the market sales quantity and sales amount of circuit protection components and recoverable fuses showed a steady growth trend. With the continuous transfer of industrial chains in developed countries, China has now become an important production base for global electronic products. At the same time, with the rapid development of China's economy, the demand for circuit protection components in downstream markets is becoming increasingly strong, and in the future, the process requirements for circuit protection components to recover fuses will become more stringent. The development trend of the recoverable
The mobile power supply consists of overcurrent protection devices, batteries, and control charging and discharging circuits. The previous charging and discharging circuits used ICs for overcurrent protection, which were complex, had high failure rates, and high costs. Some users returned or repaired the circuit, and the manufacturer was fined and claimed compensation, which caused great trouble for manufacturers and designers. The above problems must be solved in order to promote their application. The manufacturer has designed many solutions for overcurrent protection, using self recovery fuses, with fewer components, low failure rates, good functionality, and fast overcurrent response The simplest and lowest cost solution for overcurrent protection of mobile power supplies solves the above problems. The use of self-healing fuses for overcurrent protection in mobile power sources has become the first choice for engineers. Previously, chips were used to control overcurrent for pr
Self restoring fuses can respond to temperature increases caused by external heat and internal current, and establish thermal connections with high-voltage equipment to provide overheating protection. Establishing this thermal connection can be achieved by arranging these devices in contact with or near high-voltage equipment. The contact method enables the self recovery fuse to easily form physical contact with the device, thereby improving the protection effect. Transformers are a good example of this type of equipment. Self restoring fuses can be tied to external coils or enclosures to establish thermal connections. A self restoring fuse can be integrated into the circuit during design, enabling it to send a warning to the controller in the event of transformer overheating, and the system will immediately stop running. The close proximity method is suitable for the protection of power semiconductor components, and the best effect is achieved when a small surface mounted self r
With the continuous development of China's economy, cars have become an essential means of transportation for people's travel. With the increasing number of urban cars, the application of the fuse industry in the automotive field is also becoming more and more widespread. Currently, 40% of cars use various electronic devices. So where do we need to provide over temperature/over voltage/over current protection, and what devices should be used for correct protection? This issue requires us to have a deeper understanding. The main applications of self restoring fuses in automotive circuit protection devices include: small and medium-sized car motors, wiring harness junction boxes, automotive circuits, and automotive consumer electronics. Automotive electronic protection includes battery charging circuits, cigarette lighter interfaces, PCB wiring, and IEEE1394 networks; In car consumer electronics include in car audio, DVD, TV, etc. Self recovery fuses are used in automobiles to prev
The quality and safety certifications for recoverable fuses include UL from the United States, CSA from Canada, CE from the European Union, VDE and T ü V from Germany, KC from South Korea, PSE from Japan, CCC and CQC from China. At the same time, there are ROHS reports and RECH reports registered in these certifications for the restoration of fuse environmental protection testing. With the continuous development of China's electronic industry, the fuse industry has also achieved great development, and the application range of recoverable fuses has become increasingly wide. Due to the recoverability of recoverable fuses, many protective components of electronic circuit boards will prioritize the use of recoverable fuses. The characteristics of recoverable insurance are: no polarity, small impedance, installation orientation, and can be connected in series in the protected electrical circuit. It is used for DC or AC power supply. The application scope of recoverable fuses in four
MB:+86 13924633629 Ms.vicky
E-mail: waimao@xcfuse.com
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XC Electronics(Shenzhen)Corp.,LTD
Add: Xucheng Technology Park, Daling Street Industrial Park, Huidong County, Huizhou City, Guangdong Province
Shenzhen branch: Shenzhen Xucheng Electronic Commerce co.Ltd
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