SM31A204

Series:	SM31
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	200 kOhms
Power (Watts):	0.125W, 1/8W
Tolerance:	±20%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	5
Adjustment Type:	Side Adjustment
Resistive Material:	Cermet
Mounting Type:	Surface Mount
Termination Style:	J Lead
Size / Dimension:	Square - 0.173" L x 0.154" W x 0.134" H (4.40mm x 3.90mm x 3.40mm)

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Trimmer Potentiometers

Trimmer potentiometers are miniature, adjustable electrical components that can provide a variety of functions in electronic devices. They are commonly used in conjunction with integrated circuits (ICs) to set parameters within the circuit and/or to provide a varying resistance to achieve a desired effect. One popular trimmer potentiometer is the SM31A204. This article will cover the applications and working principles of this type of trimmer potentiometer.The SM31A204 is a single turn, slab type trimmer potentiometer. This type of trimmer is available in various resistance ranges and has a fastener and lock mechanism for attaching to the circuit board. The SM31A204 has a power rating of 0.05 watts with an operating temperature range of -40°C to +55°C.The SM31A204 is typically used for adjusting the bias voltage or current of an amplifier, tuning the gain and frequency of a bandpass circuit, adjusting the sensitivity of a variable-gain amplifier come into play, or effectively controlling the operating speed of a motor. As such, these components are mainly used for applications in consumer electronics, automotive electronics, telecommunications, and industrial control systems.The basic working principle of the SM31A204 trimmer potentiometer is fairly simple. The resistor is connected to two terminals, the wiper, and the resistance element. An electrical current is supplied to the resistor, which then passes through the resistance element. When the user turns the potentiometer knob, the wiper moves along the fixed resistance path, creating a variable amount of resistance between the two end points. As the resistance increases or decreases, the level of current passing through the circuit changes accordingly.These adjustments can then be used to change the operating characteristics of an electronic system. For instance, in audio systems, the adjustment of the output level of the amplifier could be controlled with the SM31A204 trimmer potentiometer. Likewise, in an adjustable-speed motor system, the speed of the motor could be regulated with the help of the SM31A204.Overall, trimmer potentiometers are powerful devices that can provide a wide range of adjustable functions to an electronic system. The SM31A204 is one such trimmer that can offer multiple adjustable features for its users. By adjusting the resistance levels of the resistance element, a variety of operating parameters can be changed to suit user preferences. As such, trimmer potentiometers are indispensable components in many electronic systems.

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