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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Description Prix Maximum Resistance Mounting Type Number of Turns Orientation Power Rating Series Termination Style Length Tolerance Depth Temperature Coefficient Height Dimensions Maximum Voltage Rating
N° de stock RS 619-7784
Référence fabricantSV01A103AEA01R00
MarqueMurata
2,42 €
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Unité
10kΩ Surface Mount 1 Top Adjust - SV01 Gull Wing 11mm ±30% - ±500ppm/°C - - -
N° de stock RS 522-0287
Référence fabricant3299W-1-102LF
MarqueBourns
3,16 €
Each
Unité
1kΩ Through Hole 25 Top Adjust 0.5W 3299 Pin 9.53mm ±10% - ±100ppm/°C - - -
N° de stock RS 167-9445
Référence fabricantTS53YJ104MR10
MarqueVishay
0,587 €
Each (On a Reel of 500)
Unité
100kΩ Surface Mount 1 Top Adjust 0.25W TS53 J-Hook 5mm ±20% - ±100ppm/°C - - -
N° de stock RS 167-3387
Référence fabricant3299W-1-102LF
MarqueBourns
1,926 €
Each (In a Tube of 50)
Unité
1kΩ Through Hole 25 Top Adjust 0.5W 3299 Pin 9.53mm ±10% - ±100ppm/°C - - -
N° de stock RS 167-3488
Référence fabricant3296P-1-202LF
MarqueBourns
1,404 €
Each (In a Tube of 50)
Unité
2kΩ Through Hole 25 Side Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
N° de stock RS 167-4758
Référence fabricantPVG5A502C03R00
MarqueBourns
1,991 €
Each (On a Reel of 250)
Unité
5kΩ Surface Mount 12 Top Adjust 0.25W PVG5 J-Hook 4.8mm ±10% - ±150ppm/°C - - -
N° de stock RS 669-6682
Référence fabricantPVG5A502C03R00
MarqueBourns
2,26 €
Each
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5kΩ Surface Mount 12 Top Adjust 0.25W PVG5 J-Hook 4.8mm ±10% - ±150ppm/°C - - -
N° de stock RS 521-9192
Référence fabricant3266W-1-103LF
MarqueBourns
3,93 €
Each
Unité
10kΩ Through Hole 12 Top Adjust 0.25W 3266 Pin 6.71mm ±10% - ±100ppm/°C - - -
N° de stock RS 169-3019
Référence fabricantM43P201KB40
MarqueVishay
1,272 €
Each (In a Box of 200)
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200Ω Through Hole 20 Side Adjust 0.5W 43P Pin 20.57mm ±10% - ±100ppm/°C - - -
N° de stock RS 277-0212
Référence fabricantM43P103KB30T601
MarqueVishay
4,83 €
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10kΩ Panel Mount, Through Hole 20 Side Adjust 0.5W 43P Pin 27.81mm ±10% - ±100ppm/°C - - -
N° de stock RS 486-7661
Référence fabricantTS53YJ104MR10
MarqueVishay
1,388 €
Each (In a Pack of 5)
Unité
100kΩ Surface Mount 1 Top Adjust 0.25W TS53 J-Hook 5mm ±20% - ±100ppm/°C - - -
N° de stock RS 162-186
Référence fabricantM43P201KB40
MarqueVishay
1,57 €
Each
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200Ω Through Hole 20 Side Adjust 1/2W 43P Pin 20.57mm ±10% 4.83mm ±100ppm/°C 6.35mm 20.57 x 4.83 x 6.35mm -
N° de stock RS 167-3242
Référence fabricant3006P-1-502LF
MarqueBourns
1,308 €
Each (In a Tube of 25)
Unité
5kΩ Through Hole 15 Side Adjust 0.75W 3006 Pin 20.57mm ±10% - ±100ppm/°C - - -
N° de stock RS 166-9612
Référence fabricantSV01A103AEA01R00
MarqueMurata
0,804 €
Each (On a Reel of 1000)
Unité
10kΩ Surface Mount - Top Adjust - SV01 Gull Wing 11mm ±30% - ±500ppm/°C - - -
N° de stock RS 167-9598
Référence fabricantM43P103KB30T601
MarqueVishay
2,494 €
Each (In a Box of 100)
Unité
10kΩ Panel Mount, Through Hole 20 Side Adjust 0.5W 43P Pin 27.81mm ±10% - ±100ppm/°C - - -
N° de stock RS 521-9530
Référence fabricant3296P-1-202LF
MarqueBourns
2,20 €
Each
Unité
2kΩ Through Hole 25 Side Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
N° de stock RS 167-3494
Référence fabricant3296P-1-503LF
MarqueBourns
1,432 €
Each (In a Tube of 50)
Unité
50kΩ Through Hole 25 Side Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
N° de stock RS 167-3379
Référence fabricant3296W-1-105LF
MarqueBourns
1,45 €
Each (In a Tube of 50)
Unité
1MΩ Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
N° de stock RS 169-3070
Référence fabricantM64W100KB40
MarqueVishay
2,193 €
Each (In a Box of 200)
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10Ω Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 0.5W 64W Pin 9.7mm ±10% - 0 → +200ppm/°C - - -
N° de stock RS 167-9960
Référence fabricantT93YB103KT20
MarqueVishay
0,962 €
Each (In a Tube of 50)
Unité
10kΩ Through Hole 21 (Electrical) Turns, 23 (Mechanical) Turns Top Adjust 0.5W T93 Pin 9.7mm ±10% - ±100ppm/°C - - -