RWR89S12R0FRB12

Series:	Military, MIL-PRF-39007, RWR89S
Packaging:	Bulk
Part Status:	Active
Resistance:	12 Ohms
Tolerance:	±1%
Power (Watts):	3W
Composition:	Wirewound
Features:	Military, Moisture Resistant
Temperature Coefficient:	±30ppm/°C
Operating Temperature:	-55°C ~ 250°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.187" Dia x 0.560" L (4.75mm x 14.22mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	R (0.01%)

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Introduction to RWR89S12R0FRB12 Through Hole Resistors

Through Hole Resistors, commonly referred to as RWR89S12R0FRB12, are designed to create an electrical resistance in an electronic circuit. These resistors help to limit the amount of current that can flow in the circuit and provide protection against over-current problems. This type of resistor is made of two metal oxide layers that are sandwiched together. The properties of the metal oxide material determine the resistance value of the resistor.

Application Field of RWR89S12R0FRB12 Through Hole Resistors

RWR89S12R0FRB12 Through Hole Resistors are used in a wide variety of applications, including television and radio receivers, industrial electronics, and audio and video equipment. These resistors are designed to be mounted on a printed circuit board by passing the leads through holes in the board; hence, the name ‘through hole’ resistors.RWR89S12R0FRB12 Through Hole Resistors are typically used for voltage and current acquisition in the range of 10 Kiloohms to 10 Megaohms and for resistances of 0.1 Ohms to 1K Ohms. They are mostly found in consumer electronics devices such as TV sets, microwave ovens, gaming systems, and CD players. In industrial applications, they are used in sensors, signal conditioning, motor controllers, transducers, and actuators.

Working Principle of RWR89S12R0FRB12 Through Hole Resistors

RWR89S12R0FRB12 Through Hole Resistors are made up of two closely-adhered metal oxide layers. The composition of the metal oxide layers determines the resistance of the resistor. The most common type of resistor is an oxide-film resistor, which consists of an oxide film deposited on an inert substrate. This film is then coated with a metal layer, typically chromium, which increases the stability of the resistor. The resistance is equal to the product of the film\'s cross-section area in terms of length, width, and thickness, multiplied by the resistivity of the material and divided by its length.The main concern with RWR89S12R0FRB12 Through Hole Resistors is the temperature coefficient of resistance (TCR). This is the ratio of the change in resistance value per unit of temperature change. The most common TCR for Through Hole Resistors is in the range of 0.5 - 1.0%. Higher temperatures cause the resistance of the film to increase due to an increase in electron mobility in the material. This increases the resistance value, which could potentially cause an inaccurate reading in the circuit.

Conclusion

RWR89S12R0FRB12 is a type of Through Hole Resistor with a range of applications, from consumer electronics to industrial electronics. These resistors are designed to create an electrical resistance in a circuit and are typically used for voltage and current acquisition. The properties of the two metal-oxide layers determine the resistance value of the resistor. Temperature coefficient of resistance (TCR) is an important consideration when using Through Hole Resistors, as the temperature of the environment affects the resistance value.

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