TUW7J1R0E

Series:	TUW
Packaging:	Bulk
Part Status:	Active
Resistance:	1 Ohms
Tolerance:	±5%
Power (Watts):	7W
Composition:	Wirewound
Features:	Flame Proof, Safety
Temperature Coefficient:	±400ppm/°C
Operating Temperature:	--
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.394" x 0.354" Rectangular x 1.378" L (10.00mm x 9.00mm x 35.00mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Through Hole Resistors – TUW7J1R0E Application Field and Working Principle

Resistance is a fundamental property of all electrical conductors. It plays a key role in many applications, from the regulation of current in power supplies to the detection of load on mechanical components. Through-hole resistors are devices that are inserted into a circuit board and used to control the voltage, current, and power distribution on a board, either through varying the resistance of the resistor itself or through imbalanced bridging of the resistor between two circuits. This article will discuss the application field and working principles of Through Hole Resistors specifically for the TUW7J1R0E model.

Background: Through Hole Resistor Working Principles

Through-hole resistors work on the principle of resistance. Resistance is defined as the opposition that a substance offers to the passage of an electric current. The unit of electrical resistance is the ohm and is symbolized by the Greek letter Omega (Ω). In electrical circuits, resistors are used to reduce current flow, adjust signal levels, and divide voltages between two or more circuits. The amount of current passing through a resistor is inversely proportional to the applied voltage, meaning that if the voltage is increased, the current will decrease and vice versa.

Application Field

Through-hole resistors are generally used in industrial and consumer electronics where power management is needed. TUW7J1R0E resistors are commonly used in power monitoring circuits, current limiting circuits, heaters, and other power related equipment. The TUW7J1R0E model is particularly suitable for low power applications such as current limiters, sampling circuits, and power supply shutdown/startup.

Design and Construction

TUW7J1R0E resistors are constructed of two metal plates which are separated by a non-conductive material called an insulator. The metal plates are the electrical contacts of the resistor and they are connected to the external circuits. The insulator material between the contacts creates a dielectric, allowing the current to flow only in one direction. The two contacts are connected to lead wires which connect the resistor to the circuit board. The contacts of the TUW7J1R0E resistor are made from metal alloys that have a high resistance to heat and have a high electrical conductivity. The contacts are silver plated in order to minimize the contact resistance and reduce the risk of arcing. The contacts are encased in a protective sleeve made from high temperature silicone rubber. The sleeve protects the contacts and can be used to dissipate heat.The insulated resin contained between the contacts is made from a very hard plastic that can withstand temperatures up to 280°C. It is also non-conductive and has a low coefficient of expansion which helps prevent wear on the contacts over time.

Operation

TUW7J1R0E resistors are designed to operate as static, or fixed-resistance components that do not require an external power source. The resistance of the resistor is determined by the type of metal used for the contacts, the distance between the contacts, and the degree of engraving on them. The amount of current passing through the resistor is proportional to the applied voltage, and is determined by Ohm’s law (V=IR).When a voltage is applied across the terminals of the resistor, a current will flow through it in a single direction. The amount of current, as determined by Ohm’s law, is inversely proportional to the resistance of the resistor. When a resistor is placed in series, it affects the current in both directions, while a resistor in parallel affects the voltage in both directions.

Conclusion

Through-hole resistors are a commonly used power management component that are designed to control current, voltage, and power. They are an essential component in many industrial and consumer electronics applications. TUW7J1R0E resistors are particularly useful for low power applications such as current limiter, sampling circuits, and power supply shutdown/startup.

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