SF-0402S100-2

Fuses are devices that are used to protect electronics from current overloads. When a fuse is overloaded it will ‘blow’, effectively shorting out and not allowing excessive current to pass through the system and potentially damaging components. In some cases, such as in electronic projects, a fuse will need to be replaced if it is tripped due to an excessive current flowing through the system. The SF-0402S100-2 is a type of fuse that is used for protection of sensitive components and circuits, and this article will outline it\'s application field and working principle.

The SF-0402S100-2 is a glass encapsulated surface mount fuse whose applications include, but are not limited to, computer networks, cellular phones, and medical equipment. It is a high reliability, high surge capability, and small size fuse that is well suited for protection of high frequency circuitry. The low resistance of the SF-0402S100-2 makes it very effective in applications where space is limited and where overheating would be an issue.

The working principle of a fuse is quite simple. It consists of a metal wire that is enclosed in a ceramic or glass container. When a small overload occurs, the wire will heat up and eventually melt the surrounding material. This creates an instantaneous electrical connection and effectively shorts out any current passing through the system, thus protecting it from further damage.

In the case of the SF-0402S100-2, the fusing element is composed of silver and nickel, and the thermoplastic body is composed of two pieces of glass that are fused together. The glass acts as an insulator to ensure that no current passes between the fuse and the component it is protecting. Generally, a fuse will trip when the current passing through it reaches a certain level and, in this case, the SF-0402S100-2 trips when the current reaches 0.18A ± 6%.

The SF-0402S100-2 is a RoHS compliant, high precision fuse that offers a wide range of protection for sensitive components and circuits. Its low resistance, thermal overload protection and high surge protection performance make it an ideal choice for applications where space is limited and reliability is important.

In summary, the SF-0402S100-2 fuse is a glass encapsulated, surface mount fuse that is suitable for a wide range of applications. Its low resistance, high surge protection, and thermal overload protection performance make it an ideal choice for sensitive components and circuits. The fuse trips when the current passing through it reaches a certain level and it is RoHS compliant, making it safe for use in electronic projects.