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August 25,2023

Self recovery fuse for overcurrent protection on industrial control motherboard.air conditioner fuses near me

　　　　1. Where is the self recovery fuse used?　　Self recovery fuses are used for overcurrent protection between motherboard power supplies, LCD displays for power overcurrent protection, and PGA core circuit overcurrent protection. They are mainly used in various levels of power supply and signal line short-circuit overcurrent circuits.　　2. What problems can self restoring fuses solve?　　The self recovery fuse mainly solves the following problems on the industrial control motherboard: 1. Internal short circuit overload protection problem; 2. External short circuit overcurrent protection issue.　　The industrial control motherboard is prone to heat generation due to prolonged continuous operation. In addition, there are power circuits and other circuits that experience excessive current due to faults, burning out critical circuits and chip equipment in the motherboard. Regardless of overload, short circuit, or incorrect power connection, it will cause a sharp increase in current in the circu

November 08,2023

fast blow or slow blow fuse for amplifier.Technical standards for fuses

　　　　1. Rated zero power resistance　　PPTC thermistors should be packaged according to zero power resistance levels, and the resistance range should be indicated on the outer packaging. After the withstand voltage and current resistance tests, the change rate of the resistance before each group of samples is extremely poor δ| After Ri - Before Ri - (After Rj - Before Rj)/Before Rj | ≤ 100%　　2. PTC effect　　A material has a PTC (Positive Temperature Coefficient) effect, which means that the resistance of the material increases with increasing temperature. Most metal materials have the PTC effect. In these materials, the PTC effect is manifested as a linear increase in resistance with increasing temperature, which is commonly referred to as the linear PTC effect.　　3. Nonlinear PTC effect　　The material undergoing phase transformation will exhibit a phenomenon where the resistance rapidly increases by several to more than ten orders of magnitude along a narrow temperature range, known as the

September 27,2024

Low voltage fuses

　　　　Low voltage fuses play a crucial protective role in power systems and electronic devices.　　Low voltage usually refers to circuit environments with AC voltage of 1000V or below or DC voltage of 1500V or below. In such low-voltage systems, fuses serve as a safety device that can quickly cut off current in the event of abnormal conditions such as overload or short circuit, protecting equipment and circuits from damage.　　The working principle of low-voltage fuses is based on their special materials and structural design. It usually consists of parts such as melt, shell, and support. Melt is the core component of fuses, usually made of low melting point metal materials such as lead, tin, zinc, etc. When the current in the circuit exceeds the rated current of the fuse, the melt heats up and gradually melts, eventually disconnecting the circuit.　　Low voltage fuses have multiple advantages. Firstly, it has a fast response speed and can instantly cut off excessive current to prevent the fau

February 27,2024

reset motor thermostat on shark vacuum.The resistance value of the fuse resistance

　　　　The resistance value of the fuse resistor is relatively small, generally ranging from 0.33 Ω to 10K Ω, and the power is also small.　　Attachment 1: Differences between current fuses and wire wound fuse resistors　　1. The current fuse does not consume energy, generate heat, or melt, and the latter will not melt when the resistance value is selected higher.　　2. The current fuse is short and cannot be adjusted, and the resistance value is not optional. The latter has an adjustable fuse length and resistance value.　　3. The use of current fuses should be coordinated with NTC, which can be used separately.　　4. The current fuse does not absorb abnormal surges and lightning surges, while the latter can absorb and have strong resistance to lightning surges and abnormal surges.

August 04,2023

What are the principles for selecting fuses.resettable 15 amp fuse

　　　　1. Is the quality of the fuse qualified　　When choosing a fuse, it is important to determine whether the quality of the fuse is qualified. Unqualified fuses may have too many uncertain factors during use, such as not being able to operate under normal current and voltage or not being able to fuse in a timely manner when the circuit is overloaded. This can have adverse effects on the product's circuit and electrical appliances, and personal safety cannot be guaranteed. Therefore, when purchasing a fuse, it is necessary to check whether the product is qualified.　　2. Is the fuse model suitable for circuit operation　　There are many types of fuses. When choosing a fuse, it is necessary to first understand the normal circuit working current and voltage of the product, and then select appropriate fuse parameters. This way, the fuse can protect the circuit from being damaged by overload current when the circuit is overloaded.　　3. Breaking capacity of fuses　　A fuse must pay attention to its

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