ST7EA201

Series:	ST7
Packaging:	Bulk
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Resistance:	200 Ohms
Power (Watts):	0.25W, 1/4W
Tolerance:	±20%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	3
Adjustment Type:	Top Adjustment
Resistive Material:	Cermet
Mounting Type:	Surface Mount
Termination Style:	J Lead
Size / Dimension:	Rectangular - 0.252" x 0.240" Face x 0.134" H (6.40mm x 6.10mm x 3.40mm)

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Trimmer Potentiometers

Trimmer Potentiometers are meant for adjusting the resistance of a circuit. Variable resistances are used to control the voltage or current flow in a circuit, allowing the user to adjust the output of a given circuit. Examples of applications for a Trimmer Potentiometer include audio and volume control adjustment, control of switch actuation, and throttle and speed control.The ST7EA201 is an adjustable, programmable Trimmer Potentiometer. It is designed with an internal switch that allows the user to set an upper and lower limit on the resistance value that can be adjusted. It is also built with a built-in current source that provides stable and error-free voltage extremes.The ST7EA201 has a wide range of applications. It can be used in audio applications to adjust the volume, control the frequency of a signal, control the amplitude of a signal, or adjust the pitch. With the adjustable switch, it can also be used to control the operation of other circuits. In terms of motor and speed control, the ST7EA201 is ideal for applications such as throttle and speed control, H-bridge motor control, and joystick control.The ST7EA201 is powered by a 5V to 30V DC voltage source, drawing a maximum of 200 mA. This is very efficient, as it allows for high resistance values without the need for large power sources. It operates over a temperature range from -20˚C to +125˚C, making it suitable for use in many industrial and commercial applications.The working principle of the ST7EA201 is based on its’ adjustable wiper arms. When the external input voltage is applied to the wiper arms, the resistance of the ST7EA201 changes. This is done by increasing or decreasing the distance of the wiper arm from the resistance element. With constant external voltage input, the voltage will remain stable across the resistor even when the wiper arm is moving. The ST7EA201 also provides linear adjustment of resistance with an adjustable bandwidth range of attenuation.In summary, the ST7EA201 offers a wide range of adjustable features. This trimmer potentiometer is ideal for applications requiring variable resistance over a wide range of temperatures and voltages. The adjustable switch allows the user to set lower and upper limits on resistance values, while the built-in current source provides stable and error-free voltage extremes. It is suited for many audio and motor/speed control applications, and is powered by a moderate voltage source, making it ideal for long-term operation.

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