W21-3K3JI Resistors

Series:	W20
Packaging:	Tape & Box (TB)
Part Status:	Discontinued at Digi-Key
Resistance:	3.3 kOhms
Tolerance:	±5%
Power (Watts):	3W
Composition:	Wirewound
Features:	Flame Proof, Safety
Temperature Coefficient:	±75ppm/°C
Operating Temperature:	-55°C ~ 200°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.220" Dia x 0.500" L (5.60mm x 12.70mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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W21-3K3JI Application Field and Working Principle

Through Hole Resistors are components commonly used in circuitry and electrical appliances and systems. The W21-3K3JI are one type of resistors, especially used in high power systems, for example, supplying an appropriate source of current to a high power circuit as a safety measure.The purpose of a Through Hole Resistor is to control electrical current, usually by causing resistance to it. Essentially, the resistor reduces the current flow in a section of an electrical system. The larger the value of the resistor, the more resistance it will provide.The W21-3K3JI resistors are a series of resistors, designed to reduce the amount of current in specific circuits. Each type of W21-3K3JI resistor is given a unique identifying code indicating the amount of current it will reduce. The most common codes are W-21, W-22, W-25, and W-30. These codes are printed on the resistors to identify them.The W21-3K3JI resistors are typically used in high power circuits, such as those found in industrial motors, telecommunications equipment, and computers. They are generally used in applications that require a large amount of power, but in which the current must be reduced in some manner. The use of W21-3K3JI resistors in these applications helps to reduce the risk of circuit overload or damage.The working principle of the W21-3K3JI resistors is relatively simple. The resistor creates resistance to the flow of current by dissipating some of the energy from the current, causing it to slow down or stop completely. This effectively reduces the amount of current available to power the circuit, electrical appliance, or system.The W21-3K3JI resistors are designed to reduce the flow of current in two ways. First, they are designed with a large resistance rating, which reduces the amount of current allowed to flow through them. Secondly, the resistors are insulated, which helps to reduce the amount of electrical leakage between the terminals, further reducing the amount of current flowing through them.The W21-3K3JI resistors can be used in a wide range of electrical applications. For example, they can be used in motor controllers, amplifiers, voltage regulators, and power supplies. They are also used in surge protectors, lightning arrestors, and other high power circuits.In addition to their practical benefits, the W21-3K3JI resistors are also aesthetically pleasing. They have a sleek, modern design and feature a durable construction, making them an ideal choice for a variety of applications.The W21-3K3JI resistors are an invaluable part of any high power application. With their ability to provide resistance against electrical current, they are an essential component in any electrical system. Not only do they help to reduce the amount of current flowing through a circuit, but they also ensure that a circuit is safe and effective. As such, the W21-3K3JI resistors are a vital component to any high power electrical application.

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