40JR30

Series:	Ohmicone® 40
Packaging:	Bulk
Part Status:	Active
Resistance:	300 mOhms
Tolerance:	±5%
Power (Watts):	10W
Composition:	Wirewound
Features:	--
Temperature Coefficient:	±90ppm/°C
Operating Temperature:	--
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.406" Dia x 1.902" L (10.30mm x 48.30mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Introduction

Through Hole Resistors (THR) are specially developed components used to resist electrical current or voltage in an electronic system. As a useful type of electric components, THR is widely used in electronic products and circuits, offering an effective way to customize the properties of components to meet various practical applications. Among these, 40JR30 is one of the most popular THR type with low resistance and stable performance. This article will focus on the application field and working principle of 40JR30 THR.

Application field

Being a type of low-resistance THR, 40JR30 THR contains an integral fixed resistor with a resistance range of 0.07 Ω to 5 Ω, such as in the 0.5Ω and 1Ω range. Considering its wide resistance range, the 40JR30 is generally used in electronics such as power amplifiers, power supplies, regulators, and more.The 40JR30 THR can also be used in other applications, such as high-power DC/DC converters. With high current ratings, the product can be used to reduce interference and other electromagnetic effects, providing significant noise reduction over a wide range of frequencies. In addition, it can also act as an isolation resistor in data transmission circuit, providing excellent isolation and protection against interference.

Working principle

The 40JR30 THR is basically consists of two main parts: a conductive track and resistive material. The conductive track is composed of copper and other metals, and the resistive material is made up of a mixture of zinc oxide and graphite. When the circuit is completed, a current flows through the track, producing a voltage drop across the resistive material, which causes resistance. Different from other THR types, the 40JR30 can be made of both conventional and non-conventional materials. For this reason, it has a very wide range of temperature coefficient, allowing it to operate in a vast range of temperature. In addition, it also has high level of power stability and is able to withstand voltage and current forces of up to 10W. Therefore, the 40JR30 is very suitable for high-power applications.

Conclusion

The THR 40JR30 is a type of popular low-resistance THR with a wide variety of practical applications. It can be used in a variety of electronic products and circuits, offering excellent heat and high level of power stability. Furthermore, its wide temperature coefficient ensures it can operate in a wide range of temperature. By understanding the application field and working principle of 40JR30 THR, one can have a better understanding of its features and benefits.

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