C1F 4 Circuit Protection

Response Time:	Fast
DC Cold Resistance:	0.026 Ohms
Size / Dimension:	0.126" L x 0.062" W (3.20mm x 1.58mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	cURus
Melting I²t:	0.336
Breaking Capacity @ Rated Voltage:	100A AC, 50A DC
Mounting Type:	Surface Mount
Package / Case:	1206 (3216 Metric)
Series:	C1F
Voltage Rating - DC:	63V
Voltage Rating - AC:	125V
Current Rating:	4A
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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C1F4 application field and working principle

Fuses are essential protective components which are used in electrical and electronic circuits to ensure the safety of devices, and C1F4 fuses in particular play an important role in many applications. This article will explain C1F4 fuses, including their application field and working principle.

What are C1F4 Fuses?

C1F4 fuses, as the name suggests, are a type of ceramic body-type fuse used in higher-voltage applications. The C1F4 fuse has an I-type core design with two separates iron cores, one of which holds the fuse element and the other is grounded. A C1F4 fuse consists of an extremely thin metallic strip suspended in a ceramic tube, which is then enclosed in an epoxy case. This fuse is rated between 10 amps and 1,500 amps, with a wide range of voltage ratings between 6 and 800 volts. This makes C1F4 fuses suitable for use in a range of medium-voltage applications, such as high-pressure hydraulic circuits, air-conditioners and refrigerators, pump motors, lighting control circuits, as well as control and signal circuits.

Working Principle of C1F4 Fuse

C1F4 fuses work by interrupting the flow of the current in the circuit in the event of an overload or short circuit. When an overload or short circuit occurs, the current flowing through the fuse increases rapidly. This sudden surge of current produces an increase in temperature inside the fuse, causing the fuse element to melt and separate the two halves of the iron core. As the current is interrupted, the flow of current through the circuit is halted, preventing any significant damage to the circuit or components.Like other types of fuses, the C1F4 fuse is designed to protect the circuit from overloads. This means that it prevents the circuit from receiving too much current, which can damage the circuit and components. It is important to note, however, that the C1F4 fuse is not designed to protect the circuit from short circuits. Instead, it is designed to detect and respond to an overload condition, and the internal construction of the fuse must be suitably engineered to be able to respond quickly and effectively in such a situation.

Conclusion

C1F4 fuses are essential components in many medium-voltage applications and are designed to protect circuits from overloaded currents. The fuse consists of an I-type core design with two separates iron cores, one of which holds the fuse element and the other is grounded, and has a thin metallic strip suspended in a ceramic tube enclosed in an epoxy case. When an overload or short circuit occur, the current flowing through the fuse increases rapidly, resulting in the fuse element melting and separating the two halves of the iron core, interrupting the flow of the current in the circuit. C1F4 fuses thus play an important role in protecting electrical and electronic circuits, and ensuring the safety of devices.

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