220 ohm Variable Resistors 2

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Part	RoHS	Manufacturer	Resistor Type	Mounting Type	Resistance	Rated Power Dissipation (P)	Maximum Operating Temperature	Tolerance	Diameter (Lead)	No. of Turns	Rated Temperature	Orientation (Actuator)	Technology	Shape (Package)	Law Of Resistance	Construction	Packing Method	Size Code	No. of Terminals	Package Style (Meter)	Terminal Shape	Sub-Category	Dimensions	Minimum Operating Temperature	Temperature Coef (ppm/Cel)	Terminal Finish	Length (Lead)	Height (Package)	Manufacturer Series	Operating Voltage	Additional Features	Type (Actuator)	Length (Package)	JESD-609 Code	Series	Diameter (Package)	Reference Standard	Width (Package)	Ganging Number	Angle Of Rotation
RT012AS2200KN		Vishay Intertechnology	POTENTIOMETER		220 ohm	12 W	320 Cel	10 %					WIRE WOUND			Vitreous Enamelled	Bulk			Panel Mount		Variable Resistors		-55 Cel					RT12	51.4 V			17 mm		RT12	22.5 mm				290 deg
T7YB221MB40		Vishay Intertechnology	TRIMMER	PCB MOUNT	220 ohm	.5 W	125 Cel	20 %		1	70 Cel	VERTICAL	CERMET	CIRCULAR PACKAGE	LINEAR	Sealed	Bulk		3	PCB Mount	WIRE	POTENTIOMETER		-55 Cel	100	Tin/Silver (Sn97Ag3)	4.5 mm			10.5 V	STANDARD: IEC60393-1	SCREW	6 mm			7 mm	CECC41100		1	270 deg

Variable Resistors

Variable resistors, also known as potentiometers or rheostats, are electrical components that can adjust the resistance in a circuit. They typically consist of a resistive element and a movable wiper, which can be adjusted by a knob or a slider. By changing the position of the wiper, the resistance between two terminals of the resistor can be varied, allowing for precise control of the amount of current flowing through the circuit.

Variable resistors are commonly used in a variety of electronic applications, such as audio equipment, lighting controls, and motor speed controls. They can also be used as voltage dividers, where the resistance value can be adjusted to achieve a desired output voltage. Variable resistors come in various shapes and sizes, including rotary potentiometers, slide potentiometers, trimmers, and preset resistors.

One of the main advantages of variable resistors is their versatility, as they can be used to control a wide range of electrical parameters, such as voltage, current, and power. They can also be used for calibration and testing purposes, as they allow for precise adjustment of circuit parameters. However, variable resistors also have some limitations, such as limited lifetime due to wear and tear, and the potential for noise and instability at higher resistance values.