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August 08,2023

Understanding Fuses.fast blow fuse rating

　　　　1、 Current Rating (In)　　The rated current of a fuse refers to its nominal rated current, usually the maximum current that a circuit can operate. The ability of a fuse to carry current, with each fuse having its specific rated current, which needs to be determined through a clear test condition. Once the current exceeds its rated value (a predetermined period of rated current), the fuse will timely open the circuit.　　Incorrect selection: Using the current value that the fuse is expected to blow as the rated current value.　　2、 Voltage Rating (Un)　　The rated voltage of a fuse refers to its nominal rated voltage, usually the maximum voltage that the fuse can withstand after disconnection. In order to ensure that the fuse can safely disconnect the short-circuit current in its related circuit, it must be operated at a working voltage lower than or equal to its rated voltage.　　Incorrect selection: The rated voltage of the fuse must match the circuit voltage!　　3、 Ambient temperature　　The a

August 23,2023

Selection of 0.5A chip fuse.car fuses near me

　　　　The series models with a rated current of 0.5A in SMD fuses include ASMD0603-050, ASMD0805-050, ASMD1206-050, ASMD1210-050, ASMD1812-050, and ASMD2920-050. When selecting 0.5A patch recoverable insurance, in addition to considering the current, we also need to consider the voltage in the circuit. The maximum voltages for the above models in order are: 6V, 6V, 13.2V, 15V, and 60V. In addition to considering the voltage and current parameters, we also need to consider the requirements of the board for the fuse packaging size. The size of the 0603 is 1.6mm * 0.8mm, the size of the 0805 is 2.0mm * 1.2mm, the size of the 1206 is 3.2mm * 1.6mm, the size of the 1210 is 3.2mm * 2.5mm, and the size of the 2920 is 7.5mm * 5.5mm.　　0.5A circuit patch fuse selection, with a protective current of 1A, can restore the operating temperature range of the fuse to -40 ℃~+85 ℃ for patches above 0.5A. Usually, we use reflow soldering, which is mainly used for surface mounted boards, that is, for chip fu

July 14,2023

Precautions for installation of Thermal cutoff.alienware thermal controller error

　　　　Precautions for installation of Thermal cutoff: 1. When the lead wire is bent for use, it should be bent from the part more than 6mm away from the root; When bending, it is not allowed to damage the roots and leads, and it is not allowed to forcefully pull, press, or twist the leads. 2. When the thermal fuse is fixed by screws, riveting, or wiring terminals, it should be able to prevent mechanical creep and the occurrence of poor contact. 3. The connecting components should be able to work reliably within the working range of the electrical product, without displacement due to vibration and impact. When conducting wire welding operations, the heating humidity should be limited to the minimum, and attention should be paid not to apply high temperatures to the thermal fuse; Do not forcefully pull, press, or twist the thermal fuse and leads; After welding, it should be immediately cooled for more than 30 seconds. 5. The thermal fuse can only be used under the specified rated voltage,

October 11,2023

surface mount fuse letter code.Chip fuse products classified by performance

　　　　Normal current flow: It is important for everyone to understand the normal current flow through the patch fuse in the circuit being used. Generally speaking, everyone needs to set a derating amount in advance, and then select according to the following basic principle: the normal current amount must be lower than the product of the rated current and the derating coefficient.　　Fusing current: According to UL specifications and models, patch fuses should quickly fuse at twice the rated current. But in most cases, in order to ensure stable fusing, we suggest that the fusing current should be greater than 2.5 times the rated current. In addition, when the time of the circuit breaker is important, the judgment must also be made by referring to the circuit breaker performance diagram provided by the manufacturer.　　Open circuit voltage: The open circuit voltage should usually be selected below the rated voltage. For example, when using a chip fuse with a rated voltage of DC24V in an ACl00

September 09,2023

Three Standards for the Definition of "Good" Chip Fuses.fast acting vs fast blow fuse

　　　　The first function of a patch fuse is protection, which means that when protection is needed, the patch fuse should play a role. This is also the first consideration when choosing a patch fuse. In general, the rated current of a fuse must be greater than the normal working current of the circuit and have a certain overload capacity. However, if the margin is too large, it will reduce or weaken its protective function. When a patch fuse should be activated, it should not act, causing damage to the protected components or even more serious dangerous consequences. The main reference tool for designers when selecting patch fuses is the "time current characteristic curve" in the product specifications provided by the fuse manufacturer.　　Choosing the appropriate type of SMD fuse with appropriate fusing characteristics and the appropriate rated current specification can meet the protection function of the fuse.　　The second function of SMD fuses is their load-bearing function, which is com

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Fuseless car charger, carefully burn your phone

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2023-04