Online Supplier of Current Fuse in China
Online wholesale fuse is also called current fuse, fuse tube, one-time overcurrent fuse. Including: fuse glass, ceramics fuse, SMD fuse. The IEC127 standard defines it as a "fuse-link". It is mainly used for current overload protection. If the fuse is properly placed in the circuit, the fuse will fuse and cut off the current when the current rises to a certain height and heat abnormally, which protects the safe operation of the circuit.
The main current fuse brands are: Littelfuse, Basman, REOMAX, Bourns, Conquer, TA-I, AEM, Hollyland, bel, YAXUN
The fuse invented by Edison more than a hundred years ago was used to protect the expensive incandescent lamps at that time. With the development of the times, the purchase price of current fuses is low. Current fuse protects electronics and power equipment from overcurrent and overheating, and avoids serious damage to electronic equipment caused by internal faults.
Current fuse is a kind of electronic protection component that protects electrical appliances. It is usually connected in series in a circuit. When the fault current increases to a certain value, it fuses itself and cuts off the circuit to achieve the purpose of protecting other devices in the circuit. The most commonly used in circuit overcurrent protection components is the current fuse. When a circuit breaks down or is abnormal, the current will continue to rise, and the rising current may damage some important components in the circuit, or it may burn the circuit or even cause a fire.
What is current fuse?
Shape classification of fuse1. Filamentous. Early original fuses were directly locked with screws and used in old switches and sockets of various sizes.
2. Flake (bare flake). It is easier to use than the old-style filament.
3. Glass tube. There are several different sizes, which are commonly found in electronic products. 6.3 x 32 mm (diameter x length), 5 x 20 mm, 3x 10 mm
4. Ceramic tube. There are several different shapes and sizes of fuse tubes to avoid bursting.
5. Plastic sheet or metal sheet pins: car fuse.
6. Surface mount component (SMD) type.
7. Cylindrical shape, plug-in type: directly welded to the circuit board for use inside the product.
Sign of the fuseMost fuses are marked with a mark on the body or end cap and mark to indicate their rating. But "SMD type" fuses have little or no markings, making identification very difficult.
Fuses may exhibit similar and significantly different characteristics, and their markings are determined. The fuse mark usually conveys the following information:
Ampere rating of the fuse
Rated voltage rating of the fuse
Time-current characteristic, namely speed fuse
National and international certification standards bodies
Manufacturer / Product Number / Series