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August 29,2024

What is the difference between resettable fuses and traditional fuses?

　　　　PPTC and fuses both do the same job: protecting electronic circuits from overcurrent related issues. The difference is that the fuse must be replaced after tripping, while PPTC can reset itself. PPTC can handle sudden overcurrent events without the need for replacement.　　PPTC and fuses both react to excessive current by generating heat, but they react in different ways. The fuse melts and breaks, completely interrupting the current, while PPTC limits the current by changing from a low resistance state to a high resistance state as the temperature increases. In short, if it is necessary to stop the current to fully protect the equipment, fuses are preferred. On the other hand, PPTC is typically used to anticipate situations where overcurrent events frequently occur, and it is crucial to maintain a constant system uptime at a lower service cost. They are also useful in remote or hard to reach places where replacing fuses is challenging.　　Both circuit breakers and resettable fuses can

July 14,2023

Fuse classification.slow blow vs fast blow fuse

　　　　　　According to size, it can be divided into　　Dimensions, 3.6X10, 3X10, 5X20, 6X30, 6X32, 6X25, 10 * 38, 2.4X7, 2.5X6, 3X8, 2.5X9, 8.5X8, 8.5X8X4, 3.5X10, 3.5X9　　According to current, it can be divided into　　32ma, 63ma, 100mA, 150mA, 200mA, 250mA, 300mA, 400mA, 500mA, 600mA, 800mA, 1A, 1.25A, 1.6A, 2A, 2.5A, 3A, 3.5A, 4A,　　5A, 6A, 7A, 8A, 9A, 10A, 12A, 15A, 20A, 25A, 30A　　According to material classification, it can be divided into　　Glass current fuse, ceramic current fuse

September 09,2023

The development trend of circuit protection components is optimistic.glass tube fuse vs blade fuse

　　　　(1) With the demand for the development of electronic products, the functionality (integration) of ICs is also becoming stronger, and their "value" is naturally becoming more noble, so it is necessary to strengthen protection.　　(2) In order to reduce power consumption, reduce heat generation, and extend service life, the working voltage of semiconductor components and ICs is getting lower and lower. According to SIA (American Semiconductor Industry Association) statistics, the current working voltage is around 1.5V, and it will drop to below 1.2V by 2004. Therefore, its ability to withstand overcurrent/overvoltage needs to adapt to new protection requirements.　　(3) There are more and more mobile electronic products, such as handheld devices, PDAs, laptops, camcorders, digital cameras, jukeboxes, etc. These electronic products require battery components as power sources, and protective components must be equipped in both battery components and battery chargers.　　(4) In modern luxury

August 24,2023

What are the safety standards requirements for fuses.where is the battery fuse located

　　　　Fuses, commonly used in electronic products, mainly play a protective role. And fuses have different safety standards, and the certification of fuses varies from country to country. Let's learn about the safety standards of fuses together.　　Fuse safety standard 1: UL and CSA standards　　Safety standards for North American regions such as the United States and Canada; The standards for small current fuse tubes are UL248-1/14 and CSA248-1/14.　　Fuse Safety Standard II: IEC Standard　　International Electrotechnical Commission standards, safety standards used in Europe and China. The standard for small current fuse tubes is IEC60 127 and GB 9364 (China).　　Fuse Safety Standard III: KTL Standard　　Korean Electrical Safety Standards.　　Fuse Safety Standard 4: JIS Standard　　Japanese Electrical Safety Standards. The standard for small current fuse tubes is JIS C6575.

October 14,2023

automotive blade fuse specification.smd chip fuse

　　　　Why sometimes patch type fuses become highly resistant and we know that the operating principle of tubular fuses is: overcurrent causes the thermal balance on the melt to be disrupted, and when the melt temperature rises to the melting point of the metal material, the middle part of the melt changes from solid to liquid. Due to the surface tension and gravity of the metal material suspended in the tube, the liquid part of the melt pulls away from both ends and drops downwards, The flashover caused by voltage causes the melt temperature to continue to rise, further flashover and further widening the distance until the circuit is completely cut off. For patch type fuses, their operating principle is the same. However, due to different structural states, the surrounding of the metal melt is tightly surrounded by the polymer or ceramic materials of its matrix. Even the melted metal cannot contract towards both ends and can only rely on diffusion, infiltration, or absorption towards the

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Fuseless car charger, carefully burn your phone

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2023-04