21J2K5E

Series:	20
Packaging:	Bulk
Part Status:	Active
Resistance:	2.5 kOhms
Tolerance:	±5%
Power (Watts):	1W
Composition:	Wirewound
Features:	Flame Retardant Coating, Safety
Temperature Coefficient:	±30ppm/°C
Operating Temperature:	--
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.157" Dia x 0.421" L (4.00mm x 10.70mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Through Hole Resistors

21J2K5E Application Field and Working Principle

Through hole resistors are resistors with leads that are designed to fit through the plated holes of printed circuit boards (PCBs). This type of resistor is commonly used in low-power electronics projects, such as those used in consumer electronics and automotive applications. A 21J2K5E resistor is a resistor with an 1806 standard or metric case size. Its lead diameter is 0.085”, and its maximum lead diameter resistance is 11 milliohms. This type of resistor is commonly used for power supply, power decoupling, and voltage isolation in fields such as automotive, consumer electronics, and industrial automation. The working principle of a through hole resistor is relatively simple. It works by resistively passing current through an electrical circuit. This resistance to current causes a voltage drop across the resistor, reducing the total voltage of the circuit. This resistance to current is known as ohmic resistance, and the amount of resistance provided by the resistor is determined by its value (in ohms). From a practical standpoint, the main purpose of a resistor in electronics is to regulate the flow of current through a circuit. Using a suitable resistor, it is possible to reduce the current flow, reduce the voltage, or protect sensitive components against unexpected increases or decreases in the current flow. Additionally, by controlling the current flow, it is possible to control the brightness of lights or the speed of motors. One of the benefits of the through hole resistor is its compact form factor. The case size and lead diameter of 21J2K5E are relatively small, making it suitable for applications where space is an issue. Additionally, the resistor’s low resistance values enable it to be used in high-current applications. Overall, the 21J2K5E through hole resistor is a versatile component with multiple applications in many different fields. Its small size and low lead resistance make it ideal for space-constrained and high-current applications, such as automotive, consumer electronics, and industrial automation. And its ability to regulate current flow allows it to be used for various purposes, such as controlling the brightness of lights or the speed of motors.

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