BK/C519-750MA

Package / Case:	2AG, 5mm x 15mm
DC Cold Resistance:	0.26 Ohms
Size / Dimension:	0.205" Dia x 0.571" L (5.20mm x 14.50mm)
Color:	--
Operating Temperature:	--
Approvals:	CSA, UL
Melting I²t:	9.162
Breaking Capacity @ Rated Voltage:	35A
Mounting Type:	Holder
Series:	C519
Response Time:	Slow
Voltage Rating - AC:	250V
Current Rating:	750mA
Fuse Type:	Cartridge, Glass
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Fuses are important electrical components designed to protect circuits and equipment. BK/C519-750MA is a type of fuse used for applications with very high current density. It is composed of two parts: the switch element and the housing.

BK/C519-750MA Application Field

The BK/C519-750MA is mainly used in the power systems, automotive and military industries. In the automotive industry, the BK/C519-750MA is used for power supply and battery protection. In the military industry, the fuse is used for protecting against short circuits and power surges. The main application fields of the BK/C519-750MA are as follows:1. Power system applications: This type of fuse is used for protecting high-voltage and high-current power systems from short circuits and overloads. 2. Dry-type transformer and generator applications: The BK/C519-750MA is used in various dry-type transformers and generators for overcurrent protection. 3. Automotive applications: This type of fuse is used for power supply and battery protection.4. Military applications: In the military industry, the BK/C519-750MA is used for controlling and protecting circuits against short circuits and power surges.

Working Principle

The working principle of the BK/C519-750MA is based on the current-sensitive nature of a fuse. The fuse has an internal resistance that increases when the current flowing through it increases beyond the rated current. When this happens, the internal resistance begins to convert some of the electrical power into heat. The amount of heat generated is proportional to the amount of current flowing through the fuse. When the heat generated exceeds a certain threshold, the heat melts the fuse element, resulting in an open circuit. This process is known as thermal overload protection and is essential for safe operation of electrical circuits. The fuse element is designed to protect against short circuit, overload and over-temperature conditions.

Advantages and Disadvantages

The BK/C519-750MA fuse has many advantages. It is designed for excellent overload protection and has a long life. It is also a low-cost solution for high-current applications. The fuse has a relatively good resistance to vibration and is resistant to arcing. However, the BK/C519-750MA has some disadvantages. It has limited short-circuit protection capabilities and is only suitable for applications with limited inductive or capacitive load. The fuse also has a limited voltage rating and is not suitable for high-voltage applications. It also has a limited current rating and may be unable to protect circuits from high-current surges.

Conclusion

The BK/C519-750MA is a high-current density fuse used for power supply and battery protection in the automotive and military industries. It has excellent overload protection and has a long life. However, it has limited short-circuit protection capabilities and is only suitable for applications with limited inductive or capacitive load. The fuse has a limited voltage rating, a limited current rating and may be unable to protect circuits from high-current surges.

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