EVN-D8AA03B25

Series:	EVN
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Resistance:	200 kOhms
Power (Watts):	0.1W, 1/10W
Tolerance:	±30%
Temperature Coefficient:	--
Number of Turns:	1
Adjustment Type:	Top Adjustment
Resistive Material:	Carbon
Mounting Type:	Through Hole
Termination Style:	PC Pins
Size / Dimension:	Rectangular - 0.295" x 0.252" Face x 0.256" H (7.50mm x 6.40mm x 6.50mm)

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Introduction to Trimmer Potentiometers

Trimmer potentiometers are a type of variable resistor that is used for general purpose applications and calibration setting. They are used in a range of circuits, from microprocessors, analog circuits, digital circuits, VLSI circuits, embedded systems, data-loggers, automotive electronics and other various measurement and control applications.Trimmer potentiometers are adjustable resistance components which consist of a coil of wire with a metal resistor strip around its circumference. As a variety of voltage is applied to the component, the resistance of the resistor strip will change. These components are mainly used for fine tuning circuits as they can be adjusted by remote means without needing to open the circuit.They are available in a variety of shapes and sizes, different kind of potentiometers are available depending on the type of application they are to be used for. Trimmer potentiometers can be found in a variety of form factors, such as 2 and 4 pin types, with or without a knurled shaft or a flat turn dial, in through-hole, surface mount and multi-turn packages.

EVN-D8AA03B25 Trimmer Potentiometer

The EVN-D8AA03B25 is a trimmer potentiometer from Panasonics, suitable for a wide range of electronic control systems such as automotive electronics. It is a 3-pin device having its terminal pins externally fixed and an adjustable shaft for control and calibration. It has a rotational life of 30,000 cycles, a stroke of 3mm and a resistance range of 1kΩ to 10kΩ.The EVN-D8AA03B25 has a slotted, knurled shaft with a round head. The design of the shaft makes it easy to be operated with a knife or a screwdriver for precise adjustments in the field. The resistance value of the device can be adjusted by turning the shaft of the trimmer potentiometer.

Working Principle of Trimmer Potentiometers

Trimmer potentiometers work using a simple principle of resistive variation. The resistive value of the potentiometers can be adjusted by varying the voltage or current input to the device. As the voltage or current is varied on the component, the resistance of the device will also change, which in turn will affect the output voltage or current. The resistance value of the trimmer potentiometer is adjustable by turning the shaft with a screwdriver or a knife. When the shaft is turned, it changes the position of the contact along the resistor element, changing the electrical connection between the corresponding leads. This causes the resistance to vary, which will affect the output voltage or current.

Application Fields of EVN-D8AA03B25

The EVN-D8AA03B25 is a widely used trimmer potentiometer for general purpose applications and calibration settings. It is a low-cost yet reliable component suitable for a wide range of electronic control systems such as automotive electronics. The EVN-D8AA03B25 can be used in microprocessors, analog circuits, digital circuits, VLSI circuits, embedded systems, data-loggers, automotive electronics, medical equipment and other various measurement and control applications.The flexibility of the device makes it the perfect choice for fine tuning applications and for making precise adjustments in the field. It is also suitable for applications such as voltage dividers, voltage regulators, and current regulators.

Conclusion

Trimmer potentiometers are adjustable resistance components which are used in a wide variety of electronic control systems. The EVN-D8AA03B25 trimmer potentiometer from Panasonics is a 3-pin device having its terminal pins externally fixed and an adjustable shaft for control and calibration. It is suitable for a wide range of applications, such as microprocessors, analog circuits, digital circuits, VLSI circuits, embedded systems, data-loggers, automotive electronics, medical equipment and other various measurement and control applications.The resistance value of the potentiometer can be adjusted by turning the adjustable shaft with a screwdriver or a knife, which will affect the output voltage or current. The EVN-D8AA03B25 is a low-cost yet reliable trimmer potentiometer component, making it the perfect choice for fine tuning applications and precise adjustments in the field.

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