Micro fuses are different from ordinary electronic components such as chip resistors and chip capacitors. Due to differences in manufacturers, their specifications vary greatly. In addition, actual installation can have a certain impact on the heat dissipation of printed boards and wiring. Therefore, the selection of micro fuses should ultimately be determined by the state of the product. Miniature fuses are primarily used in digital cameras, laptops, mobile phones, and other electronic products. From traditional glass tube fuses to miniature fuses, the selection focus varies slightly due to differences in product technology. The selection of miniature fuses involves the following elements: The normal operating current of the circuit should not exceed 75% of the rated current of the fuse. 2. Pulse, pulse current, surge current, starting current, and circuit transient values. Micro fuses are particularly concerned about this. Due to technological reasons brought about by small-sc
The overcurrent protection application of self recovery fuses - There are two optional types of self recovery fuse materials: radial lead packaging and surface mount. The function of self restoring fuses is suitable for various design applications. In daily life, there are many plug and play models of device products, and "plug and play" applications include motherboards and many peripheral devices that can be frequently connected or disconnected from computer ports. For example, devices connected to mice, keyboards, audio, networks, monitors, and USB ports may malfunction, the connecting cables may be damaged, or incorrect connections may occur. The application of self restoring fuses for overcurrent protection - therefore, the ability to reset after correcting incorrect connections is particularly attractive. Some of these applications use radial lead devices, while others are more suitable for surface mount devices. (Related knowledge: Application cases of self recovery fuses)
What is overcurrent protection - Short circuit protection is characterized by high setting current and instantaneous action. Electromagnetic current releases (or relays) and fuses are commonly used as short-circuit protection components. The characteristics of overload protection are small setting current and inverse time action. Thermal relays and delayed electromagnetic current relays are commonly used as overload protection components. (Related knowledge: What is the relationship between the rated current and the fusing current of a fuse?) Fuses are also commonly used as overload protection components without significant impact current. What is overcurrent protection - In TN systems, when using fuses as short-circuit protection, the rated current of the melt should be less than 1/4 of the single-phase short-circuit current; When using a circuit breaker for protection, the setting current of the instantaneous action or short delay action overcurrent release of the circuit break
What are the drawbacks of LED driver power? With the development of LED applications, LED driver power has also been widely used. Last week, we talked about the development trend of LED driver power. Today, the editor will briefly explain the shortcomings of LED driver power. Firstly, the technical personnel of companies that produce LED lighting and related products do not have sufficient understanding of switching power supplies. The power supplies produced can work normally, but some critical evaluations and electromagnetic compatibility considerations are not sufficient, and there are still certain hidden dangers; (Related knowledge: The development trend of LED power drive) Secondly, most LED power supply manufacturers have transitioned from ordinary switching power supplies to LED power supplies, and their understanding of the characteristics and use of LEDs is not yet sufficient; However, currently there are almost no standards for LEDs, most of which refer to the standar
The development trend of LED power supply driver - LED power supply driver is a voltage converter that converts the power supply into a specific voltage and current to drive LED lighting. In recent years, with the development of LED, the development trend of LED power drivers has become particularly evident. Today, I will briefly explain the development trend of LED power drivers to you. Firstly, a series of constant voltage and current control electronic circuits are developed based on the characteristics of LEDs. Integrated circuit technology is used to control the input current of each LED at the optimal current value, enabling the LED to obtain stable current and generate the highest output luminous flux. It is best to control the size of LED current when the input voltage and environmental temperature of the LED driver power supply change. (Related knowledge: Classification of LED backlight sources) Secondly, the LED driver power supply has intelligent control function, allo
1. Quality issues The quality of the fuse is very important. If the fuse installed in the circuit is of poor quality, it is easy for the fuse to malfunction after the circuit is connected and when the circuit is overloaded, resulting in the circuit being unusable or burned out. 2. Model not suitable If the fuse model is not suitable, two situations will occur: ① When the rated current of the fuse is too low, it will be installed in the circuit and connected to the power supply. If the fuse blows, the circuit cannot be powered on and the equipment cannot operate normally. ② When the circuit is overloaded, it will not be able to fuse in a timely manner, which will not only burn out the circuit, but also easily cause fires and other accidents 3. Aging, oxidation If the fuse is stored for too long or in an incorrect manner, it can lead to oxidation, aging, and unusable. When the fuse is oxidized, it can be seen that the packaging of the product has fallen off. 4. Poor contact I
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
