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
Self recovery fuses are one of the preferred protective components for many electronic circuits. When a self recovery fuse is in operation, it is inevitable that the circuit will blow. For recoverable fuses that blow in daily use, we must understand the cause in order to solve the problem with the circuit board. Below, we will follow the editor to understand the two situations where self recovery fuses blow during operation: Scenario 1: The self recovery fuse is broken in the middle and intact on both sides, which is caused by excessive load current causing the fuse to blow or be damaged, and the melting point to decrease, but the current is not too high. Scenario 2: When the self recovery fuse melts, there are burn marks and black and white ash near the fastening screws. This is caused by an instantaneous short circuit of the power supply and a high short-circuit current. From the above two situations, it can be concluded that when a self recovery fuse blows during operation, i
The certification for one-time blown fuses includes EU CE certification, US/Canada UL/UL certification, Germany VDE/TUV certification, Canada CSA certification, Japan PSE certification, China CQC certification, CCC certification, and so on. Customers need to apply for different product certifications based on the country of export. The most common certifications for one-time blown fuses are CCC certification, CQC certification, and UL certification, as there are relatively more customers who require these three certifications. Therefore, manufacturers will also prioritize applying for these certifications. The disposable fuse of the collector has passed UL certification, including disposable patch fuse 0603, disposable patch fuse 1206, disposable fuse 2410, as well as square and circular miniature fuses with certification number E486200. UL certification: UL is the abbreviation for Underwriter Laboratories Inc. in English. UL Safety Testing Institute is the most authoritative ins
MB:+86 13924633629 Ms.vicky
E-mail: waimao@xcfuse.com
Factory :
XC Electronics(Shenzhen)Corp.,LTD
Add: Jinyuan Industrial zone,Heao, Henggang, Shenzhen 518115,China
Shenzhen branch: Shenzhen Xucheng Electronic Commerce co.Ltd
Add: 8-15 Jinyuan Industrial zone,Heao, Henggang, Shenzhen 518115,China
