High quality Micro Fuse manufacturer in China

FBELE supplies all kinds of small fuses. The products have passed UL TUV cul VDE PSE CCC certification and meet RoHS & reach requirements. They are widely used in overcurrent protection of various electronic and electrical equipment. They have the characteristics of compact structure, reliable and stable performance

  • Black color and brown color
  • Both Round and square type
  • FBELE famous brand
  • UL TUV cul VDE PSE CCC certification

What is Micro Fuse

The fuse protects the circuit by fusing itself with the Joule heat of the current flowing through the fusible metal, so as to cut off the circuit. In the second half of the 19th century, fuse came into being with the invention of various electrical equipment led by electric lamp. Since then, the structural form of fuse has basically not changed and continues.

We often see such as glass tube fuse and chip fuse in automobile. As a protective component of electronic equipment, glass tube fuse has been used for a long time. However, due to its disadvantages such as large volume, easy to break and unable to realize automatic installation, the demand for miniature fuse in the industry is higher and higher.

The main purpose of traditional fuse is to protect the input part of power supply. Nowadays, some changes have taken place, and many new uses have been derived from fuses, such as the protection of printed boards and IC inside the equipment, the protection of input and output circuits, etc., which also increases the use of miniature fuses year by year. Miniature fuse has the characteristics of small volume, high sensitivity and rapid protection. It is commonly used in switching power supply, charger and control board of small household appliances

Why Purchase FBELE Micro Fuse

High Voltage
Free Samples

FBELE provide free samples for real customers.


Full range of UL TUV CUL VDE PSE CCC certification

good consistency
Good Consistency

The automatic production of FBELE company ensures the excellent consistency of the micro fuse

automatic welding
Automatic Welding

The special design of micro fuse and reel tape packaged to enable customers to use automatic production

Specifications of Micro Fuse

Most miniature fuses have obtained ul248-14 certification of national safety specification, which stipulates the following contents:

① Power on capacity: power on according to the rated current for 1 hour without fusing.

② Temperature rise: the temperature rise when energized according to the rated current is less than 75 ℃.

③ Fuse test: fuse within 1 minute under the condition of 2 times of rated current.

④ Breaking capacity: when the rated breaking capacity is added, there will be no continuous arcing or ignition.

Product Testing

How to Purchase Micro Fuse

The In practical applications, it is not enough to select fuses only according to UL specifications.

  1. Several problems that must be considered in the selection

Based on the understanding of the parameters of the circuit used, the fuse is selected according to the following aspects: normal current, fusing current (current and time to fuse), open circuit voltage, short-circuit current, impulse current (current, time and times not cut off), and ambient temperature.

① Normal current: first of all, we must know the normal current flowing through the fuse in the circuit used. Usually, we need to set a derating amount in advance, and then choose according to the following principle: that is, the normal current must be less than the product of rated current and derating coefficient.

② Fusing current: according to the provisions of UL specification, the fuse shall fuse quickly under the condition of twice the rated current. However, in most cases, in order to ensure reliable fusing, we recommend that the fusing current should be greater than 2.5 times the rated current. In addition, if the fusing time is important, it must also refer to the fusing characteristic diagram provided by the manufacturer for judgment.

③ Open circuit voltage: the open circuit voltage shall generally be selected to be less than the rated voltage. For example, when a fuse with a rated voltage of DC24V is used in an AC100V circuit, it may ignite the fuse or break the fuse.

④ Brand,please choose FBELE,famous brand with 25 years experience in manufacturing micro fuse.

FBELE: Your Reliable Micro Fuse Supplier in China


FBELE electronics specialty supplies miniature fuses,Miniature fuse, small fuse, free fuse samples, professional and reliable, genuine guarantee, circuit overcurrent protection device supplier, resistance fuse, multi model and multi specification for selection

FBELE Brand is one of the leading micro fuse suppliers and all of our micro fuse can meet ROHS and REACH, high quality,competitive price.

FBELE is one stop solution for micro fuse for your project.FBELE can provide OEM and ODM service.whether you are Distributor of micro fuse or you are manufacturer of electronic products.

Please donot hesitate to contact us immediately for your Inquiry!!

What does customer say about FBELE Company


In 2019, I contacted FBELE through my friend’s introduction. My friend has cooperated with FBELE for 10 years, and the cooperation is very happy, and then recommended it to me We bought fbele products. At present, we are very satisfied with the quality and delivery date. I will also recommend them to my friends.


We saw FBELE on the forum. At that time, we thought that the enterprise’s technical articles were very thorough and in-depth, and its social responsibility was also strong. This year, we just need to have new product development, so we found fbele and asked them to purchase samples. The speed was very fast and the quality was good, waiting for the implementation of the project!

Micro Fuse banner
China Best Micro Fuse Manufacturer & Supplier

High quality micro fuse, automatic production, stable products, good consistency and quality assurance. FBELE is the preferred supplier for international famous brands.

FBELE Certification

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