Is the melting value of a fuse important? In short, this is important. This melting value is to ensure that the heat generated through the fuse during a surge does not have enough time to transfer heat from the fuse to the external circuit. Once the current I and time t are measured, the hot melt value I2t can be easily calculated. After the fuse is blown, it will generate an arc before opening. For fuses, they can have the same rated voltage and current, as well as the same rated breaking capacity, in the same response time category (slow, medium, and fast). However, there are many options for hot melt values. Basically, the higher the hot melt value, the longer the fuse will blow, or the greater the surge that the fuse will withstand before it blows. This is different from the breaking capacity of a fuse, which refers to the greater current that the fuse can withstand at a specified voltage before breaking the circuit or generating an arc. If the glass tube of the fuse breaks,
Fuse holder refers to the holder used for installing fuses, which can be divided into panel mounted fuse holders, PCB mounted fuse holders, lead type fuse holders, and automotive fuse holders; Panel mounted fuse holder (mostly used for electrical equipment, such as power amplifier, DVD, speaker, Massage chair and other electrical equipment); Lead wire fuse holder (mostly used for connection of Small appliance and industrial machinery wire harness); PCB fuse holder (mostly used on the control board of Small appliance) and fuse clip (mostly used on the control board of Small appliance). Car fuse holders can be divided into lead type car fuse holders (commonly used in car and industrial machinery wiring harnesses); Panel mounted automotive fuse holders (commonly used in automotive appliances such as power amplifiers, refrigerators, DVDs, etc.) and automotive fuse clips. Fuse holders have requirements for current resistance, voltage resistance, and fire resistance, and generally requir
Chip fuses are crucial for electronic devices such as digital cameras, laptops, and mobile phones.. From traditional glass test tube fuses to small fuses and patch fuses, the focus of their selection is slightly different due to the differences in new technologies of the products. (1) Current in the normal operation of the circuit. According to the operation of the fuse, the current should not exceed 75% of the rated current of the fuse. (2) Single pulse, impulse current, Surge protector current, operating current and circuit instantaneous value. Please note this when integrating IC fuses. Due to the processing technology caused by small specifications, the impact resistance of built-in fuses is much lower than that of glass tube fuses with the same rated current or other oversized fuses. (3) The size of overload current and the minimum and longer duration of overload current. It is generally necessary to use digital oscilloscope detection and conceptual calculation to distingui
According to the application category, fuses are classified into four categories: power engineering fuses are classified according to rated current, and fuses are divided into three categories based on working voltage: high voltage fuses, low voltage fuses, and working voltage fuses. According to the classification of final breaking capacity, fuses are classified as follows: high breaking capacity fuses are classified by appearance, and fuses are classified as follows: small flat head tubular fuses Fuses are generally divided into two types: disposable fuses and self repairing fuses. Fuses, also known as amperage fuses, are primarily used for load protection. Properly installing a fuse in the power circuit will cause the fuse to melt and interrupt the amount of current in the event of an abnormal increase in voltage to a certain level and attention, protecting the safe operation of the power circuit. Self repairing fuse is a type of overcurrent electronic device protection compon
The general classification and zoning of fuses are generally based on eight levels: protection method, application scope, volume size, rated current, final breaking capacity, external characteristics, melting rate, and standard. 1. Classification by protection method There are two types of fuse protection: overcurrent protection and overtemperature protection; The fuse used for overcurrent protection is the overcurrent protection fuse, and the fuse used for over temperature protection is the temperature fuse. Temperature fuses are also divided into low melting point alloy shapes, temperature sensor open shapes, memory alloy shapes, etc. Temperature fuses are used to protect appliances that are hot or prone to overheating. They respond to the rise in temperature of electrical appliances and do not easily pay attention to the size of electrical flow in the operation of power circuits. Their principle is different from the "overcurrent protection fuse". 2. Classification by applica
1. Unauthorized modification of vehicle lights Many car enthusiasts are fond of modifying high-power headlights or xenon lamps. However, if the vehicle's headlights exceed the original overall planned output power or have a large load, it is inevitable that the fuse will melt. Suggest that if there is insufficient technical expertise or no need to tamper with the modification of cars. 2. Modify a high-power speaker Some buyers want to have the actual effect of Auditory system, which may be modified. But when the output power and disorder of the speaker exceed the original overall plan, the fuse will also melt. 3. Rinse the engine hood with tap water Many people wash their cars in the wrong way. For example, in the summer, many people require a water gun to wash the engine hood when washing their cars, and using a high-pressure water gun with such a high pressure to clean the engine hood can also easily cause short circuit faults in the power circuit.
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
