EVL-HFAA06A54

Series:	EVL
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Resistance:	50 kOhms
Power (Watts):	0.01W
Tolerance:	±20%
Number of Turns:	1
Adjustment Type:	Top Adjustment
Size / Dimension:	Round - 0.512" Dia x 0.185" H (13.00mm x 4.70mm)
Termination:	PC Pins
Mounting Type:	Through Hole

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Introduction to Thumbwheel Potentiometers

Thumbwheel Potentiometers are commonly used in various industries, from industrial control and communications applications to consumer electronics and OEM devices. The EVL-HFAA06A54 is one such product specifically designed for high-speed applications, particularly in both motor control and communications fields. Its 8-digit rotary potentiometer thumbwheel allows both precise and infinite resolution adjustment of the output level, making it suitable for many applications. This article discusses the application fields and working principles of the EVL-HFAA06A54.

Application Fields for the EVL-HFAA06A54

The EVL-HFAA06A54 is primarily designed for use in high-speed applications, offering precise control over output levels in manufacturing and industrial settings. It can be used as part of a potentiometer system to control the speed of AC motors, in engine control systems, as a positioning device in robotic assembly lines, and as an adjustable gain amplifier for audio signals. It can also be used to control the intensity of LEDs in optoelectronic devices, as well as for adjusting the power level in wireless communications devices.

Working Principle of the EVL-HFAA06A54

The EVL-HFAA06A54 operates on a voltage divider principle. The thumbwheel potentiometer contains a wiper arm that is arranged in a circular fashion and operates on a single turn potentiometer. As the arm is rotated, the amount of resistance between the two ends of the resistor changes, and this affects the output voltage.The EVL-HFAA06A54 contains eight 10-turn Binary coded decimal “BCD” type thumbwheels. Each wheel controls one of the eight digits in a Standard Binary Code. Each wheel adjusted the output voltage by 1/256 per increment, allowing for precise control of the output level. The BCD type thumbwheel potentiometer also offers infinite resolution, as it can be adjusted incrementally up to 15 bits. This means that the output voltage can be adjusted and fine-tuned to the exact level needed.The EVL-HFAA06A54 can be connected either with straight-through or reversed wiring, as it can be switched between the two configurations. This makes it ideal for use in both single-ended and differential applications. It is also temperature compatible and can be used in extreme temperatures.

Conclusion

The EVL-HFAA06A54 is a high-speed thumbwheel potentiometer, specifically designed for use in high-speed applications. It is well-suited for industrial and manufacturing settings, as its BCD type thumbwheels offer both precise and infinite resolution control over the output level. It can be connected either with straight-through or reversed wiring, allowing for use in both single-ended and differential applications. Consequently, the EVL-HFAA06A54 is an excellent choice for control in motor control, engine control, optoelectronic devices, and wireless communications applications.

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