resettable 15 amp fuse_mini cooper fuse box factory

September 14,2024

temperature controller honeywell

　　What is a surface mount crystal oscillator　　In the field of modern electronics, accurate clock signals are crucial for the normal operation of devices. As a compact and stable clock source, surface mount crystal oscillators have become an important component of electronic devices, providing stable clock signals for various devices.　　1、 Introduction to Surface mount Crystal Oscillators　　Surface mount crystal oscillator is a small electronic component that integrates an oscillator and crystal components. It adopts precise crystal oscillation technology, which can generate stable frequency signals for driving system clocks of various electronic devices.　　2、 The advantages of surface mount crystal oscillators　　Compact and convenient: The surface mount crystal oscillator adopts surface mount packaging, which is compact in size and suitable for compact circuit design. It can save valuable space and facilitate fast surface mount soldering.　　High frequency stability: The surface mount crysta

October 17,2024

coffee thermostat replacement

　　Temperature Stability of SMD Fuses　　The temperature stability of SMD fuses is a critical factor in their performance. SMD fuses are designed to operate within a certain temperature range. At elevated temperatures, the behavior of the fuse can change. The resistance of the fuse element may increase with temperature, which can affect its current-carrying capacity. If the temperature gets too high, the fuse may prematurely blow even if the current is within the rated value. This is because the materials in the fuse have temperature coefficients that influence their electrical properties.　　Manufacturers use special materials and designs to enhance the temperature stability of SMD fuses. For example, some fuses are made with alloys that have a relatively low temperature coefficient of resistance. This helps to maintain a more consistent performance over a range of temperatures. Additionally, the construction of the fuse housing and the way it dissipates heat also impact temperature stabil

September 28,2024

how to test a high voltage fuse

　　Household Fuses　　Household fuses play a crucial protective role in household circuits.　　Household fuses are usually made of low melting point metal wires or sheets, such as lead, tin, copper, etc. Its working principle is that when the current in the circuit exceeds the rated current of the fuse, the fuse will melt due to overheating, thereby cutting off the circuit, preventing electrical equipment from being damaged due to overload or short circuit, and also avoiding safety accidents such as fires.　　In household electricity use, different electrical devices require different amounts of current, so it is necessary to choose fuses with appropriate rated current. Generally speaking, the rated current of fuses in lighting circuits is relatively low, while the rated current of fuses in high-power appliances such as air conditioners and electric water heaters is relatively high. If the rated current of the fuse is not selected properly, it may lead to frequent melting of the fuse or failu

August 02,2024

temperature switch thermostat thermal protector fuse

　　What is the function of a fuse in a circuit　　Fuses mainly play a protective role in circuits. In the event of a fault or abnormality in the circuit, as the current continues to rise and the rising electrode may damage certain important or valuable components in the circuit, it may also burn the circuit or even cause a fire. If the fuse is correctly placed in the circuit, it will melt to protect the circuit.　　The main function of a fuse in a circuit is overcurrent protection, also known as short-circuit protection. A fuse is a simple and effective protective device that primarily serves as a short-circuit protection in electrical circuits.　　Function of fuse:　　1. Under normal circumstances, connect and disconnect the no-load and load currents in the high-voltage circuit　　2. In case of system failure, it can cooperate with protective and automatic devices to quickly cut off the fault current, prevent the expansion of accidents, and ensure the safe operation of the system.　　3. The functi

August 24,2024

bimetal thermostat for refrigerator

　　The resistance values corresponding to different load currents in PPTC　　PPTC is a new type of recovery type overcurrent protection device, which is a thermally sensitive device. After PPTC is powered on, it is in a low resistance state and current can pass smoothly. But when overcurrent occurs in the circuit, PPTC will quickly heat up, generating a large amount of heat, causing its resistance value to rise rapidly. This can prevent excessive current from passing through and protect circuit safety.　　The resistance value of PPTC not only reflects its protection capability, but is also closely related to the working state of the circuit. Generally speaking, the larger the rated current of PPTC, the greater the amplitude of its resistance change. The following are the resistance values corresponding to different load currents.　　When the current load of PPTC is 10mA, its resistance value is around 0.8 ohms. At this point, PPTC is in a low resistance state, and current can flow smoothly. H

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2024-08

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