Fuseless car charger, carefully burn your phone_Industry Trends_News & Events

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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

October 19,2023

normally open vs normally closed.What is a self recovery fuse

　　　　1、 What is a self recovery fuse　　Self recovery fuse is an overcurrent electronic protection component that uses a polymer organic polymer under high pressure, high temperature, and sulfurization reaction conditions　　After mixing with conductive particle materials, it is processed through a special process. Habitually applying PPTC (Polymer Positive Temperature)　　Coefficent, also known as a self restoring fuse. Strictly speaking, PPTC is not a self restoring fuse, and Resettable Fuse is a self restoring fuse.　　2、 Principle of self recovery fuse　　The self recovery fuse is made of high-tech polymer resin and nano conductive grains through special processing. Under normal circumstances, nano conductive grains　　The body forms a chain like conductive path along with the resin based link, and the fuse operates normally; When a circuit experiences a short circuit or overload, the large current flowing through the fuse causes its temperature to increase. When the Curie temperature is reache

November 15,2023

breville coffee machine thermostat.How to Design Chip Fuses

　　　　In electronic products, chip fuses have two functions: protecting end users from harm and protecting circuits from damage. These functions benefit both device users and manufacturers. Over the past decade, the demand for electronic devices serving information technology, mobile, and consumer applications has sharply increased in the market. With this rapidly growing demand, the risk of unexpected situations in electronic devices has also increased, requiring the use of overcurrent protection devices such as chip fuses to avoid risks such as electrical overload.　　Before analyzing the electrical characteristics of various chip fuses in the market, it is first necessary to understand the basic design principles behind each technology.　　Standard fuses may be based on metal wires placed inside sealed ceramic or glass tubes filled with air or sand, but chip fuses are based on completely different principles. Most chip fuses appear to be standard chip devices and are made of single or mul

November 06,2023

temperature regulating waterproof mattress protector.

　　　　1： The testing process is as follows:　　1. Initial internal resistance Rimin measurement: Unpack, take out the fuse, and measure the internal resistance of the fuse;　　2. Welding: Solder the fuse onto the PCB through reflow soldering, with leads connected to the PCB for easy electrical performance testing;　　3. Hold current IHold test: Select a DC constant voltage and current source for testing. Adjust the voltage to the voltage Vmax specified in the specification,　　Adjust the current to the holding current Ihold specified in the specification and power on for 15 minutes;　　4. Action current Itrip test: Select a DC constant voltage and current source for testing. Adjust the voltage to the voltage Vmax specified in the specification,　　Adjust the current to the holding current Itrip specified in the specification and power on for 5 minutes;　　5. R1max test: Cool the activated fuse for 1 hour and measure the internal resistance of the fuse.　　2： Test standards:　　1. The testing environment i

July 11,2023

Automobile fuse inspection and replacement.ceramic fuse for microwave

　　　　If any electrical equipment does not work during the use of the car, it may be caused by a burnt fuse and needs to be replaced in a timely manner.　　The method is: 1. Turn off the ignition switch and open the fuse box cover. 2. Replace the fuse.　　Precautions:　　(1) Replace the fuse according to the rated current value indicated on the fuse box cover, and do not use a fuse with a higher rated current.　　(2) If the new fuse immediately blows again, it indicates that there may be a malfunction in the circuit system and should be repaired as soon as possible.　　(3) In the absence of backup fuses. In case of emergency, fuses on other equipment that have no impact on driving and safety can be replaced.　　(4) If a fuse with the same current load cannot be found, a lower rated current than the original fuse can be used instead.

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Fuseless car charger, carefully burn your phone

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2023-04