ST7EA104

Series:	ST7
Packaging:	Bulk
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Resistance:	100 kOhms
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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Introduction to Trimmer Potentiometers

Trimmer potentiometers, also known as trimmer pots or trim pots, are a type of variable resistor commonly used in electronics to make small adjustments to a circuit. Trimmer potentiometers are smaller and more precise than traditional potentiometers, allowing for more accurate control of the circuit\'s resistance.

The ST7EA104 Application Field and Working Principle

The ST7EA104 is a trimmer potentiometer manufactured by STMicroelectronics. It is a three-terminal, surface-mount device designed for use in electronic equipment that require a precise and adjustable resistive element to control a circuit. The ST7EA104 features a maximum resistance of 10KΩ, which can be adjusted to provide an infinitely variable resistive value from 0 to 10KΩ. It also features a “split-tooth” design, reducing contact resistance and providing added accuracy and durability to the device. The ST7EA104 is a 10-turn ceramic trimmer, although it also comes in 1-turn and 15-turn variants.The ST7EA104 operates on the principle of resistance. Resistance is a measure of the opposition to current flow in a circuit. The ST7EA104 is a variable resistor, meaning its resistance can be adjusted. This is done by changing the position of its center wiper (contact point). When the contact point moves up or down, it increases or decreases the resistance of the circuit, respectively.The ST7EA104 is mainly used in situations where a precise, adjustable resistive element is required to control a circuit. It can be used in audio, communication, and automotive electronics. It can also be used to adjust the gain in amplifiers, or in systems that require a precise adjustment of the sensitivity of a sensor.

Conclusion

Trimmer potentiometers, such as the ST7EA104, are useful devices that allow for precise adjustment and control of resistance in a circuit. The ST7EA104 is a three-terminal, surface-mount device that can be adjusted to provide an infinitely variable resistive value from 0 to 10KΩ. It is an ideal choice for audio, communication, and automotive electronics, as well as systems that require a precise adjustment of the sensitivity of a sensor.

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