043503.5KR

Package / Case:	0402 (1005 Metric)
DC Cold Resistance:	0.0135 Ohms
Size / Dimension:	0.039" L x 0.020" W x 0.013" H (0.99mm x 0.51mm x 0.33mm)
Color:	--
Operating Temperature:	-55°C ~ 90°C
Approvals:	CSA, UL
Melting I²t:	0.3017
Breaking Capacity @ Rated Voltage:	35A
Mounting Type:	Surface Mount
Series:	435
Response Time:	Fast
Voltage Rating - DC:	32V
Current Rating:	3.5A
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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Introduction

043503.5KR fuses, also known as thermal fuses, are special types of fuses designed to protect sensitive electronic and electrical circuits from excessive temperatures. In the event of a power overload or an excessive temperature occurring in the circuit, the thermal fuse will open and thereby interrupt the circuit and protect the essential component(s) from damage. Thermal fuses are implemented in a wide variety of applications and their functionality depends on the type of application and the ambient environment.

Overview

043503.5KR fuses are a special type of current-limiting fuses, which are designed to protect sensitive electronic and electrical circuits from excessive temperatures. A typical thermal fuse consists of a metallic strip that is designed to melt when the temperature inside the circuit rises to a certain level, causing it to open and interrupt the circuit. However, unlike other types of fuses, the 043503.5KR fuse will not reset after cooling down; the fuse must be replaced in order for the circuit to be functional again.

Application Field and Working Principle

Thermal fuses are used in a wide variety of applications, ranging from consumer electronics to industrial machinery to protect sensitive components from excessive temperature and power overload. Typically, a thermal fuse is installed in close proximity to the device or component that needs to be protected; the fuse then dissipates the heat generated by the component or device via its metallic strip. Once the ambient temperature goes beyond a certain level, the strip melts and the circuit is interrupted.In addition to protecting sensitive components from excessive heat, 043503.5KR fuses also help to detect short circuits. Generally, when a short circuit occurs, the current level in the circuit rises drastically; the thermal fuse reacts by abruptly tripping (opening) and interrupting the circuit. This helps protect internal components and decreases the chances of an electrical fire occurring.

Advantages

Due to their superior design and functionality, 043503.5KR fuses have several advantages over other types of fuses. Firstly, they are capable of detecting and responding to various levels of temperature increase, making them suitable for a wide range of applications. Furthermore, their extremely small size makes them highly efficient, as they can easily fit into even the most confined areas without compromising their functionality. Finally, thermal fuses are also extremely reliable and can be counted on to provide many years of reliable service.

Conclusion

043503.5KR fuses are a type of current-limiting fuses used to protect electronic and electrical circuits from excessive temperatures and power overloads. Thermal fuses are implemented in a wide variety of applications and their functionality depends on the type of application and the ambient environment. They are easy to install, efficient, compact, reliable, and capable of responding to various levels of temperature increase. As evidenced, thermal fuses are an ideal choice for protecting sensitive components from excessive temperatures and power overloads.

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