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July 27,2023

The Matching Function of Self Recovery Fuse in Anti Reverse Connection Protection

　　　　Generally speaking, DC power circuits have protection requirements for anti reverse connection, and in many cases, protection is achieved by connecting anti reverse diodes in series. However, in some cases, anti reflection diodes are not suitable due to the series voltage drop. At this point, the self recovery fuse based on surge protection can be combined with one-way TVS to achieve anti reverse protection. As shown in Figure 6, when the DC power supply is reversed, the unidirectional TVS is directly connected, generating overcurrent, causing the to act quickly and limit the current. When applying this scheme, it is also necessary to consider the withstand voltage of and the power of TVS.　　self recovery fuses are widely used for overcurrent protection in power lines, communication lines, and various I/O input and output ports of electronic products in communication, security, industrial, automotive, consumer and other fields. It can effectively prevent product damage due to short

August 17,2023

Can self restoring fuses solve circuit faults?autozone fuse tester

　　　　Self recovery fuse is a special material made with automatic recovery function. After a circuit failure, the current increases, and the self recovery fuse will change its structure to block the current, achieving the effect of protecting the circuit. Some people think that installing a self restoring fuse in the circuit can automatically solve the problem of circuit faults. Next, the editor will answer for everyone.　　Although self restoring fuses can protect circuits from being damaged by overcurrent, they cannot completely solve the problem of circuit faults. After a circuit malfunction occurs, the fuse blocks the current, and after a period of time, it will automatically restore its own structure and reconnect the circuit. If you do not solve the problem of an increase in current caused by a circuit malfunction, the self recovery fuse will operate again and again until the fuse is damaged.　　So can self restoring fuses solve circuit faults? In fact, self recovery fuses are only su

September 21,2023

Selection process of fuses.outboard motor thermostat stuck open

　　　　1. Safety certification: Determine the safety certification of fuses based on the required safety certification for the entire machine, such as UL or IEC specifications. 2. Structural size: The size is determined based on the space in the circuit design, such as length, diameter, and whether there are leads. 3. Rated voltage: It must be greater than or equal to the actual application voltage, generally including 24V, 32V, 63V, 125V, 250V, etc. 4. Breaking capacity: should be greater than the maximum fault current in the circuit. 5. Rated current: Based on the following items: (1) Normal working current, the rated current of UL specification fuses operating at 25 ℃ is ≥ normal working current/0.75; The rated current of IEC standard fuses is ≥ normal working current/0.9. (2) Environmental temperature: The current carrying capacity test of a fuse is conducted under the ambient temperature of 25 ℃. The higher the ambient temperature, the shorter the lifespan of the fuse, and the lower

August 10,2023

The key elements of damage to vehicle fuses include the following aspects.fast blow fuse time

　　　　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.

October 25,2023

motorcycle fuse box waterproof.What parameters should be noted for patch fuses

　　　　A circuit is composed of wires and electronic components, and the parameters of SMD fuses required by different circuits vary. The main parameters of SMD inductors include inductance, allowable deviation, distributed capacitance, rated current, and quality factor. 1. The magnitude of inductance mainly depends on the number of turns (turns) of the inductance coil, the winding method, the presence or absence of a magnetic core, and the material of the magnetic core. Usually, the more coils there are, the denser the wound coils, and the greater the inductance. A coil with a magnetic core has a greater inductance than a coil without a magnetic core. The higher the permeability of the magnetic core, the greater the inductance. So there are many factors that determine the magnitude of inductance. The basic unit of inductance is Henry, denoted by the letter "H". Commonly used units include milliohms (mH) and microohms( μ H) The relationship between them is: 1H=1000mH; 1mH=1000 μ H2. The a

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Operating parameters of automobile fuse holder

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2023-04