Response Time:	Fast
DC Cold Resistance:	0.022 Ohms
Size / Dimension:	0.330" L x 0.128" W x 0.115" H (8.38mm x 3.25mm x 2.92mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	--
Melting I²t:	5.1
Breaking Capacity @ Rated Voltage:	50A AC, 300A DC
Mounting Type:	Holder, Surface Mount
Package / Case:	2-SMD, Square End Block with Clip
Series:	SSQC
Voltage Rating - DC:	125V
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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Fuses

SSQC 4 application field and working principle

Fuses are passive components used to protect electrical devices against overloads, short circuits or other abnormal conditions. Fuses are one of the oldest and most reliable devices used to protect electrical systems. They work by breaking an electrical circuit when the current exceeds a set value. In this article, we discuss the application fields and working principle of SSQC 4 fuses.The SSQC 4 fuse is a quarter inch x .25 inch fuse with a voltage rating up to 32V and a current range from 1A to 5A. The SSQC 4 is designed to protect electronic circuits from overloading and short circuits caused by surges and overloads. This type of fuse is commonly used in consumer electronics, automotive applications, audio equipment, and industrial equipment.The SSQC 4 fuse works by sensing the current flowing through the circuit. If the current exceeds the fuse’s rated ampacity (current rating), the internal heat generated by the flow of current will melt the internal element of the fuse, thus breaking the circuit and preventing further damage to the electrical system. The SSQC 4 fuses are designed to operate in temperatures from -40oC up to 125oC and pressures up to 16 bar.The SSQC 4’s internal design is composed of an internal element which is made of a conductive material that is prone to melting under certain conditions. When the SSQC 4 is in service, it is connected in series with the protected circuit, allowing current to flow through it. If a spike in current or an overload occurs, the heat generated by the flow of current will melt the internal element of the fuse, thus breaking the circuit and preventing further damage.The SSQC 4’s application field is widespread as it is suitable for use in a wide range of electrical systems ranging from consumer electronics, automotive applications, audio equipment, and industrial equipment. Furthermore, SSQC 4 fuses are designed to be current-limiting, meaning that it will allow only the rated current to flow through the protected circuit. This results in reduced damage to electrical systems by limiting the total current flowing through the circuit.In conclusion, SSQC 4 is an ideal solution for the protection of electrical circuits from overloading and short circuits. Its wide application field and current-limiting features make it a great choice for protecting various electrical systems. As such, it is a highly recommended product for safely protecting electrical systems from dangerous conditions.

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Part Number	Manufacturer	Price	Quantity	Description