Fuseless car charger, carefully burn your phone_Industry Trends_News & Events

Related News

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

November 11,2023

automotive blade fuse manufacturers.Discussion on Disposable Blown Fuses

　　　　Disposable fuses can be divided into fast fuse and slow fuse. The models of disposable slow fuse available in Jidian Tong brand include: slow break JFC0603, slow break JFC1206, and slow break JFC2410.　　A one-time slow blown fuse, also known as a delay fuse, has a delay characteristic characterized by its ability to remain intact during non fault pulse currents in the circuit and provide protection against prolonged overload. Some circuits have a current that is several times greater than the normal working current at the moment of switching. Although this current peak is high, it appears for a short time. We call it pulse current, also known as impulse current or surge current. Ordinary fuses cannot withstand this current, and if a regular fuse is used in such a circuit, it may not be able to start normally. If a larger specification fuse is used, it will not be protected when the circuit is overloaded. The melt of the delay fuse is specially processed and has the function of absor

September 23,2023

What is the function of patch self recovery fuses.battery distribution fuse block

　　　　For some industry newcomers, they may not know the definition and function of patch fuses. Patch self recovery fuses are used to protect electronic devices from damage in the event of circuit abnormalities, greatly reducing damage. A common fuse is a fusible fuse inside a light bulb, so what is a patch self recovery fuse? According to the literal meaning, it can automatically restore to a normal state. What is the function of a patch self recovery fuse? SMD self recovery fuse is a type of overcurrent electronic protection component, which is made of polymer organic polymers under high pressure, high temperature, and vulcanization reaction conditions, and is processed by a special process after adding conductive particle materials. SMD self recovery fuse is a positive temperature coefficient polymer thermistor that can replace current fuses.　　The temperature during normal operation of the patch self recovery fuse is relatively low, achieving balance. When in a low resistance state,

October 11,2023

test auto fuse with multimeter.The application of self recovery fuse in rechargeable battery pack

　　　　1. The application of self recovery fuse in rechargeable battery pack　　1) Problem and Analysis: NICD, NiMH, and Li-ION are commonly used in special protection circuits for mobile phones and computers. The reasons for these battery pack failures are usually: unexpected short circuit between the positive and negative terminals; The charger cannot stop charging a fully charged battery; The polarity of the wrong charger or battery is reversed. Installing the PTC patch series in series in various units of the battery pack can provide overcurrent and over temperature protection for the circuit.　　2) Protection requirements: In the event of a malfunction, the voltage of the mobile phone can reach 16V, and the voltage of the computer can reach 24V; Its current can reach 100 amperes. In overcharging conditions, the battery pack needs to be protected against overheating. NiCD batteries cannot exceed 120C, and NiMH and Li Ion batteries cannot exceed 90C.　　The ultra small package (0402 specific

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

News & Events

Keep abreast of company dynamics

Fuseless car charger, carefully burn your phone

10

2023-04