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July 13,2023

SEFUSE Thermal cutoff.thermal overload protector in motor

　　　　Precautions for installation of SEFUSE Thermal cutoff: 1. When the lead wire is bent for use, it should be bent from the part more than 6mm from the root; When bending, it is not allowed to damage the roots and leads, and it is not allowed to forcefully pull, press, or twist the leads. 2. When the thermal fuse is fixed by screws, riveting, or wiring terminals, it should be able to prevent mechanical creep and the occurrence of poor contact. 3. The connecting components should be able to work reliably within the working range of the electrical product, without displacement due to vibration and impact. When conducting wire welding operations, the heating humidity should be limited to the minimum, and attention should be paid not to apply high temperatures to the thermal fuse; Do not forcefully pull, press, or twist the thermal fuse and leads; After welding, it should be immediately cooled for more than 30 seconds. 5. The thermal fuse can only be used under the specified rated voltage

July 06,2023

Fuse classification.fast blow or slow blow fuse for multimeter

　　　　According to the protection form, it can be divided into overcurrent protection and overheating protection. The fuse used for overcurrent protection is commonly referred to as a fuse (also known as a current limiting fuse). The fuse used for overheat protection is generally called "Thermal cutoff". Thermal cutoff can also be divided into low melting point alloy, temperature sensing trigger and memory alloy (Thermal cutoff is used to protect heating appliances or easily heating appliances from high temperature, such as hair dryer, electric iron, rice cooker, electric stove, transformer, motor, etc.; it responds to the rise in temperature of electrical appliances and does not care about the working current of the circuit. Its working principle is different from "current limiting fuse").　　According to the scope of use, it can be divided into: power fuse, machine tool fuse, electrical instrument fuse (electronic fuse), and automotive fuse.　　According to body integration, it can be divi

October 12,2023

glass tube fuse vs blade fuse.How to Protect Circuits with Self Recovery Fuses

　　　　When the circuit is working normally, it has no impact on the protected circuit, and its resistance value is very small, with little power consumption on the circuit. When the circuit is abnormal, the current is too high, or there is a short circuit in the circuit, the fuse can quickly block the excessive current, protecting the safety of the circuit and other components.　　When there is an abnormality in the circuit, the self recovery fuse activates protection. When the protection is activated, the current in the circuit is not completely interrupted, but momentarily drops to a very small current. At this point, the equipment on the circuit will stop working. After manually powering off and troubleshooting, when the power is restored, the self restoring fuse will automatically return to the state before protection. Without replacing the fuse, the circuit can resume normal operation. If the fault is not resolved or if the fault reoccurs, the self recovery fuse will still activate pr

September 20,2023

The Application of Self Recovery Fuses in Automotive USB Systems.battery terminal fuse nissan problems

　　　　Nowadays, cars generally come with USB 3.0 ports. In addition to overcurrent and overvoltage protection, sensitive electronic devices using high-speed interfaces such as USB and HDMI also require electrostatic discharge (ESD) protection. Three different types of circuit protection devices can help avoid these potential destructive events.　　PolySwitch polymer positive temperature coefficient (PPTC) devices can provide self-healing protection in USB applications. Placing the PolySwitch PPTC device on the VBUS port of the USB power supply can limit the current during short circuit events, help prevent damage caused by sudden short circuits, and help achieve UL60950 compliance.　　The design of USB 3.0 uses circuit protection devices to help prevent overcurrent (PTTC, left) and overvoltage (PolyZen, right) damage at the power port, as well as ESD (SESD device) events at the data port　　For overvoltage protection in USB 3.0 applications, PolyZen devices use a hybrid approach that integrate

August 07,2023

What are the differences in the size of car fuses.resettable 5 amp fuse

　　　　Many electrical appliances in car circuits are connected with wires of different colors, and fuses cannot be ignored. Fuse is a commonly used name and is referred to as Fuse in national standards. The function of a fuse is to protect circuits (circuits) and electrical equipment. Next, I will provide a detailed introduction to the differences in the size of automotive fuses? Let's learn more together.　　A car fuse is a type of current fuse. When the circuit current exceeds twice the rated current of the fuse, it will fuse within a few seconds, providing circuit protection. Commonly used for overcurrent protection in automotive circuits and industrial equipment.　　Automotive fuses can be divided into large, small piece fuses, and medium piece fuses.　　The rated current range is 1-40 amperes (a) to 30-120 amperes (a), and the rated voltage is 32 volts (V).　　The fork bolt fuse can be divided into small fork bolt fuse and large fork bolt fuse.　　The rated current is 30-150 amperes (a) to 40

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Fuseless car charger, carefully burn your phone

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2023-04