RJ4EW105

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Trimmer potentiometers are electronic components used to adjust signals within circuits. They are variable resistors that are adjusted with a trimming tool or manipulation screw while the circuit stays in operation. Trimmer potentiometers are widely used in musical instruments, automotive automatic control systems, medical devices, and other precision circuits for precise device adjustment.

The RJ4EW105 is also a type of trimmer potentiometer, and its performance characteristics are as follows:

• Panel size: 5x5mm
• Rated voltage: 50V
• Rated power: 0.25W
• Resistance value range: 10KΩ ±30%, 20KΩ ±20%
• Insulation resistance: >10MΩ at DC 300V
• Temperature coefficient: ±100ppm/℃

The RJ4EW105 is suitable for a wide range of application fields, from medical devices and automatic control systems to consumer electronics. As a type of trimmer potentiometer, it is mainly used in various circuits for precise adjustments and adjustments of resistance values in order to maintain the desired accuracy of the circuit.

In terms of working principle, trimmer potentiometers work similarly to regular potentiometers, except that adjustment is made from outside the circuit without powering it off. This type of potentiometer is usually built with electrode plates, acetal plastic bushings, and contains 2-3 resin seals for dust protection. The adjustment is done by turning the knob to move the sliding contact along the resistor track.

The RJ4EW105 is composed of a conductive plastic resistor track, a sliding contact, a plastic housing, and an adjustment screw. Its precision is determined by the fine mechanical matching between the resistor track and the sliding contact. Its resistance adjustment range is also much smaller than regular potentiometers, in order to ensure the accuracy of the resistance value. In order to prevent dust from affecting its precision, it also has robust protective features such as 2-3 resin seals for dust-proof protection.

In summary, the RJ4EW105 trimmer potentiometer is a type of electronic component widely used in various electronic circuits for the purpose of precise adjustments. Its application fields include consumer electronics, medical devices, and automatic control systems. In terms of working principle, it works similarly to regular potentiometers, with the adjustment made from outside the circuit without powering it off, and precision determined by the fine mechanical matching between the resistor track and the sliding contact.

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