Series:	Trimpot® RJ26/RJR26-Sealed
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	20 kOhms
Power (Watts):	0.25W, 1/4W
Tolerance:	±10%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	12
Adjustment Type:	Side Adjustment
Resistive Material:	Cermet
Mounting Type:	Through Hole
Termination Style:	PC Pins
Size / Dimension:	Rectangular - 0.250" x 0.170" Face x 0.250" H (6.35mm x 4.32mm x 6.35mm)

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Trimmer Potentiometers

Trimmer potentiometers are often referred to as three-terminal resistors, and are widely used in applications such as audio signal attenuation, voltage regulation, output impedance matching, and power supply circuits. The RJR26FX203PQ trimmer potentiometer is a 3-terminal adjustable resistor designed for noise suppression and EMC protection.

Application Field

The main function of the RJR26FX203PQ trimmer potentiometer is to adjust the electrical circuit impedance in order to reduce the amount of RF noise emitted by the device. It is especially useful in portable or other low-cost, low-power electronics applications, such as mobile phones, tablets, digital cameras, and many other products that require minimalized electronic interference. With its compact 2mm x 2mm footprint, it is ideal for compact designs and reduces the amount of space required on circuit boards. This makes it an ideal choice for low-profile applications.The trimmer potentiometer also provides a variety of digital and analog applications. They are often used in mobile radio systems, wireless networks, computers, audio/video systems, and cable TV. They are also used in industrial and automotive electronics, such as lighting circuits, motor speed controls, and power supplies. They can also be used to adjust signal levels, balance inputs, and match transistors or integrated circuits.

Working Principle

The RJR26FX203PQ trimmer potentiometer consists of three terminals, two of which are used to adjust the resistance. The third terminal is a reference terminal, which is used to set the reference voltage and the other two terminals are the adjustable terminals. These are connected to the rest of the circuit, allowing the resistance to be adjusted by varying the voltage applied to the adjustable terminals.The adjustable terminal is connected to an internal brushless taper which is placed on the resistor element. When voltage is applied to the adjustable terminals, it causes the taper to move axially, changing the resistance. The reference terminal is also connected to a wiper that shifts in and out in response to changes in the adjustable terminal voltage. To increase the resistance, the wiper is moved closer to the adjustable terminal; to decrease the resistance, it is moved away from it.

Conclusion

The RJR26FX203PQ trimmer potentiometer is designed for noise suppression and EMC protection in low-profile, low-power applications. It offers a simple and cost-effective solution for a wide variety of digital and analog applications. With its compact size and low-power consumption, it is an ideal choice for many applications requiring noise mitigation or EMC protection.

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