Trimmer Resistors

What are trimmer potentiometers?


Trimmer potentiometers, sometimes referred to as trim pots or trimmer resistors are a type of adjustable potentiometer (variable resistor). They are used to calibrate and fine-tune circuits. Trimmer potentiometers are typically constructed from cermet or have a carbon composition. They can be mounted directly onto PCBs (printed circuit boards).


Trimmer potentiometers are not adjusted very frequently. You can think of them as a ’set and forget’ component. Trim pots let you set (or trim) the resistance to obtain a very precise current, output voltage or gain. Once the value has been set, it is unlikely that you’ll need to adjust the trimmer again unless you need to recalibrate the circuit.


Can I replace a normal potentiometer with a trimmer potentiometer?


Yes, you can. However, trimmer potentiometers are typically more expensive than standard potentiometers with a fixed resistance rating. It is also worth bearing in mind the difference in lifespan too. Many potentiometers have a lifespan that allows for hundreds of thousands of cycles. Trimmer potentiometers typically have a lifespan of a few hundred cycles (at best). Trim pots also tend to take up more space on a PCB than a standard potentiometer.


Do I need a single turn or multiturn trim pot?


This completely depends on the intended application of the trim pot. Multiturn trimmer pots tend to have a higher resolution than single turn models. A single turn trimmer potentiometer is ideal for applications where a resolution of one turn is enough.


Adjustment types


Trimmer potentiometers are normally adjusted by hand (you can turn the adjustment knob with your fingers), with a screwdriver or with a specialised adjustment tool designed for use with a particular model or series.


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Beskrivning Pris Maximum Resistance Mounting Type Number of Turns Orientation Power Rating Series Termination Style Length Tolerance Depth Temperature Coefficient Height Dimensions Maximum Voltage Rating
RS-artikelnummer 619-7778
Tillv. art.nrSV01A103AEA01B00
VarumärkeMurata
25,02 kr
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10 kΩ Surface Mount - Top Adjust - SV01 Gull Wing 11mm ±30% - ±500ppm/°C - - -
RS-artikelnummer 169-2933
Tillv. art.nrSV01A103AEA01B00
VarumärkeMurata
13,45 kr
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10 kΩ Surface Mount - Top Adjust - SV01 Gull Wing 11mm ±30% - ±500ppm/°C - - -
RS-artikelnummer 619-7784
Tillv. art.nrSV01A103AEA01R00
VarumärkeMurata
25,02 kr
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10 kΩ Surface Mount 1 Top Adjust - SV01 Gull Wing 11mm ±30% - ±500ppm/°C - - -
RS-artikelnummer 166-9612
Tillv. art.nrSV01A103AEA01R00
VarumärkeMurata
8,309 kr
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10 kΩ Surface Mount - Top Adjust - SV01 Gull Wing 11mm ±30% - ±500ppm/°C - - -
RS-artikelnummer 725-0044
Tillv. art.nrPVG3A104C01R00
VarumärkeMurata
12,51 kr
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100 kΩ Surface Mount 1 Top Adjust 0.25W PVG3 J-Hook 3.6mm ±20% - ±150ppm/°C - - -
RS-artikelnummer 788-4105
Tillv. art.nrPVA2A104A01R00
VarumärkeMurata
2,06 kr
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100 kΩ Surface Mount 1 - 0.1W PVA2 Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS-artikelnummer 619-7790
Tillv. art.nrSV01L103AEA11T00
VarumärkeMurata
19,65 kr
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10 kΩ Through Hole - Top Adjust - SV01 Pin 11mm ±30% - ±500ppm/°C - - -
RS-artikelnummer 788-4293
Tillv. art.nrPVZ3K102E01R00
VarumärkeMurata
1,24 kr
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1 kΩ Surface Mount 1 Top Adjust 0.1W PVZ3 Gull Wing 3.1mm ±30% - ±500ppm/°C - - -
RS-artikelnummer 788-4192
Tillv. art.nrPVM4A204C01R00
VarumärkeMurata
5,79 kr
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200 kΩ Surface Mount 1 Top Adjust 0.1W PVM4 Solder Pad 4mm ±25% - ±250ppm/°C - - -
RS-artikelnummer 788-4307
Tillv. art.nrPV12P204A01B00
VarumärkeMurata
15,45 kr
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200 kΩ Through Hole 4 Top Adjust 0.5W PV12 Solder Pin - ±10% - ±100ppm/°C - - -
RS-artikelnummer 166-9613
Tillv. art.nrSV01L103AEA11T00
VarumärkeMurata
9,707 kr
Each (On a Reel of 1000)
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10 kΩ Through Hole - Top Adjust - SV01 Pin 11mm ±30% - ±500ppm/°C - - -