67PR500KLF

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Trimmer Potentiometers

Trimmer potentiometers, also referred to as trimmers, are variable resistors with an adjustable resistance that allows the user to precisely adjust electrical parameters, such as a voltage divider or current limiter. The technology is suitable for applications requiring frequent and precise adjustment, such as test and calibration, audio signal routing, and in temperature controls for home appliances. Trimmer potentiometers come in a variety of designs and sizes, and use different materials and contact types. Depending on the application, the user should choose the suited device for their needs.

67PR500KLF

The 67PR500KLF is a trimmer potentiometer manufactured by TDK. This surface mounted device (SMD) is designed to operate in various environments. Delivered in a small ceramic package, the 67PR500KLF is well suited for high frequency applications such as ADSL or DSL modem designs. The trimming range is adjustable between 500KΩ and 50KΩ via a plastic screw, with controlled length encapsulation providing improved reliability over standard screw keys. The potentiometer also has a dielectric withstanding voltage of 350VAC(50/60Hz) for one minute at +25℃. It offers two-point adjustment, meaning that the user can adjust the resistance value within the given range as they wish. The device has an operating temperature between -40℃ and +105℃.

Application Fields

The 67PR500KLF can suit a range of applications, from providing variable voltage or current to advanced temperature control systems. It can be used in tuning analog volume circuits, as well as the conditioning of audio signals. It can also be used as a gain control element in radio receivers, as an amplifier bias torque or in hi-fi devices. This device is well suited for applications requiring frequent adjustments and stability over time.

Working Principle

The 67PR500KLF works on a limited adjustment range between 500KΩ and 50KΩ and is suitable for a range of applications. It has two terminals and a wiper. The input voltage is applied between the two terminals, and the wiper is used to adjust the output voltage as desired. By turning the plastic screw, the wiper can be adjusted to change the resistance. In a voltage divider, the voltage is determined by the resistance between the ground and the wiper. The resistance between two other terminals will remain constant, and the output voltage can be adjusted.

Conclusion

The 67PR500KLF trimmer potentiometer manufactured by TDK is a versatile device that can suit a range of applications. Its limited adjustable range between 500KΩ and 50KΩ and its two-point adjustment offers the user the ability to precisely adjust the resistance and output voltage. With a small form factor and a wide operating range, the TDK 67PR500KLF is a good choice for various applications, such as audio signal routing, conditioners and adjustments, and radio receivers.

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