SF-1206FP125-2

Response Time:	Fast
Size / Dimension:	0.122" L x 0.061" W x 0.024" H (3.10mm x 1.55mm x 0.60mm)
Color:	--
Operating Temperature:	-20°C ~ 105°C
Approvals:	UL
Melting I²t:	0.094
Breaking Capacity @ Rated Voltage:	50A
Mounting Type:	Surface Mount
Package / Case:	1206 (3216 Metric)
Series:	SinglFuse™ SF-1206FP
Voltage Rating - DC:	63V
Current Rating:	1.25A
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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What is the SF-1206FP125-2 Fuse

The SF-1206FP125-2 is a type of surface-mounted fuse, designed specifically for intermediate-level performance in both power distribution systems and telecom applications. It is a microfuse, about the size of a thumb thumbnail, with the ability to handle currents up to 125 Amps.

Applications of the SF-1206FP125-2 Fuse

The SF-1206FP125-2 is designed for a range of applications. It is one of the most commonly used fuses to protect consumer electronics from over current or short circuit damage. For example, it is perfect for protecting automotive audio systems, protecting front and rear amplifiers from power surges. It is also suitable for protecting telecom equipment, digital circuits, and any other circuit board applications that require the protection of low-voltage equipment from overload and short circuit.

Working Principle of the SF-1206FP125-2

When a fault occurs in the electrical system, an electric arc will form between the contacts of the fuse. This arc will heat up the fuse element, causing it to vaporize and extinguish the arc. This stops the current flow and prevents further damage to the device. The SF-1206FP125-2 fuse has a special construction in order to create this arc quickly and reliably.The fuse element consists of the base metal and a thin film coating of a conductive material, usually copper. When the electricity passes through the fuse, it heats up the metal, causing it to melt and creating an arc of electricity between the contacts. This arc quickly dissipates heat and reduces the current flow. The melting point of the metal in the fuse element determines the maximum current at which the fuse will operate.

Advantages and Disadvantages of the SF-1206FP125-2 Fuse

The SF-1206FP125-2 fuse provides a reliable way to protect consumer electronic devices and telecom equipment from overloads and short-circuits. It provides high-performance protection with a compact size, making it ideal for use in more confined spaces. It is also designed to allow for mounting on both sides of the circuit board for increased flexibility. However, the SF-1206FP125-2 fuse also has some drawbacks. It is not designed for very high current applications, and may be prone to burning out with over current conditions. Additionally, due to the delicate nature of the copper wire within the fuse, it is not the best choice for use in environments with extreme temperatures or vibration.

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