21J2R0E

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Through Hole Resistors are compact electrical components used for fixing problems related to impedance within a circuit board. 21J2R0E resistors are particularly popular because of their low-impedance characteristics and compact size. In addition to their resistance ratings, the 21J2R0E resistors offer a wide range of application fields and working principles.

Application Fields

The 21J2R0E resistor is mainly used in consumer electronics, industrial, medical, automotive, and aerospace applications. In consumer electronics, 21J2R0E resistors are typically used to divide the voltage in a circuit or to limit the current or power levels given to a load. In industrial applications, 21J2R0E resistors serve to act as current-limiting resistors for motor controllers, to eliminate electrical interference, and to protect electronic components from damage due to overvoltage.

In medical applications, 21J2R0E resistors are used to provide an accurate resistance measurement for blood glucose monitors, heart monitors, and to regulate signals used in MRI machines. In automotive and aerospace applications, 21J2R0E resistors are used to protect electrical components from power surges, limit current to motors, and to divide signals.

Working Principles

21J2R0E resistors are composed of metal and plastic materials that have been designed to resist electrical flow. When an electrical current or signal passes through the resistor, the metal elements of the resistor will resist the flow of electrical charge, creating a voltage drop across the element. This voltage drop is then used to calculate resistance, or impedance, depending on the application. 21J2R0E resistors can be manufactured to resistances from 0.1 ohms up to 1 G ohm.

Some of the most common types of 21J2R0E resistors are 50 Kohm surface mount, 500 Kohm through-hole, 18 Kohm surface mount, 10 Kohm through-hole, and 2.25 G ohm through-hole. Each type of resistor is designed to resist a certain range of electrical current. The operating temperature range for 21J2R0E resistors can range from -55°C to +125°C, and the maximum power rating can range from 0.25 W to 5 W.

21J2R0E resistors are also designed for low-noise applications. They are manufactured with a low thermal impedance, which prevents electrical noise from being generated by the resistor. These resistors are also designed for multiple solder reflow cycles, which allows them to withstand high temperatures without being damaged.

Conclusion

21J2R0E resistors have a wide range of application fields and working principles. They are designed to resist electrical current at various levels, provide low-noise operations, and to provide protection to electrical components from power surges and overvoltages. These resistors are also designed to withstand multiple solder reflow cycles and high temperatures, making them a popular choice for many different types of applications.

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