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.


...
Read more Read less

Filters

Viewing 1 - 20 of 467 products
Results per page
Description Price Maximum Resistance Mounting Type Number of Turns Orientation Power Rating Series Termination Style Length Tolerance Depth Temperature Coefficient Height Dimensions Maximum Voltage Rating
RS Stock No. 154-1271
Mfr. Part No.M64W203KB40
BrandVishay
$4.28
Each
units
20 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 1/2W 64W Pin 9.7mm ±10% 5mm - 11.1mm 9.7 x 5 x 11.1mm -
RS Stock No. 169-3069
Mfr. Part No.M64W203KB40
BrandVishay
$2.394
Each (In a Box of 200)
units
20 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 0.5W 64W Pin 9.7mm ±10% - - - - -
RS Stock No. 788-5123
Mfr. Part No.T93YB203KT20
BrandVishay
$1.856
Each (In a Pack of 5)
units
20 kΩ Through Hole 21 (Electrical) Turns, 23 (Mechanical) Turns Top Adjust 0.5W T93 Pin 9.7mm ±10% - - - - -
RS Stock No. 154-2549
Mfr. Part No.M63M103KB30T607
BrandVishay
$4.02
Each
units
10 kΩ Through Hole 1 Finger Adjust 1/2W 63M-T607 Pin 9.52mm ±10% 9.52mm ±100ppm/°C 10.41mm 9.52 x 9.52 x 10.41mm -
RS Stock No. 167-9649
Mfr. Part No.M63M103KB30T607
BrandVishay
$2.968
Each (In a Box of 400)
units
10 kΩ Through Hole 1 Top Adjust 0.5W 63M Pin 9.52mm ±10% - ±100ppm/°C - - -
RS Stock No. 167-9963
Mfr. Part No.T93YB203KT20
BrandVishay
$1.766
Each (In a Tube of 50)
units
20 kΩ Through Hole 21 (Electrical) Turns, 23 (Mechanical) Turns Top Adjust 0.5W T93 Pin 9.7mm ±10% - - - - -
RS Stock No. 167-9438
Mfr. Part No.TS53YL503MR10
BrandVishay
$1.289
Each (On a Reel of 500)
units
50 kΩ Surface Mount 1 Top Adjust 0.25W TS53 Gull Wing 5mm ±20% - ±100ppm/°C - - -
RS Stock No. 277-0212
Mfr. Part No.M43P103KB30T601
BrandVishay
$5.92
Each
units
10 kΩ Panel Mount, Through Hole 20 Side Adjust 0.5W 43P Pin 27.81mm ±10% - ±100ppm/°C - - -
RS Stock No. 167-9598
Mfr. Part No.M43P103KB30T601
BrandVishay
$4.039
Each (In a Box of 100)
units
10 kΩ Panel Mount, Through Hole 20 Side Adjust 0.5W 43P Pin 27.81mm ±10% - ±100ppm/°C - - -
RS Stock No. 486-7548
Mfr. Part No.TS53YL503MR10
BrandVishay
$0.90
Each (In a Pack of 5)
units
50 kΩ Surface Mount 1 Top Adjust 0.25W TS53 Gull Wing 5mm ±20% - ±100ppm/°C - - -
RS Stock No. 167-9951
Mfr. Part No.T93YA503KT20
BrandVishay
$1.529
Each (In a Tube of 50)
units
50 kΩ Through Hole 21 Top Adjust 0.5W T93 Pin 9.7mm ±10% - - - - -
RS Stock No. 788-5085
Mfr. Part No.T93YA503KT20
BrandVishay
$1.918
Each (In a Pack of 5)
units
50 kΩ Through Hole 21 Top Adjust 0.5W T93 Pin 9.7mm ±10% - - - - -
RS Stock No. 169-3082
Mfr. Part No.M64W104KB40
BrandVishay
$2.394
Each (In a Box of 200)
units
100 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 0.5W 64W Pin 9.7mm ±10% - ±100ppm/°C - - -
RS Stock No. 167-9596
Mfr. Part No.M43P102KB30T601
BrandVishay
$4.07
Each (In a Box of 100)
units
1 kΩ Panel Mount, Through Hole 20 Side Adjust 0.5W 43P Pin 27.81mm ±10% - ±100ppm/°C - - -
RS Stock No. 850-9643
Mfr. Part No.T73YE103KT20
BrandVishay
$1.39
Each
units
10 kΩ Through Hole 1 Top Adjust 0.5W T73 PC Pin 6.6mm ±10% - ±100ppm/°C - - -
RS Stock No. 277-0183
Mfr. Part No.M43P102KB30T601
BrandVishay
$5.97
Each
units
1 kΩ Panel Mount, Through Hole 20 Side Adjust 0.5W 43P Pin 27.81mm ±10% - ±100ppm/°C - - -
RS Stock No. 374-6917
Mfr. Part No.T7YB472MT20
BrandVishay
$1.806
Each (In a Pack of 5)
units
4.7 kΩ Through Hole 1 Top Adjust 0.5W T7 Pin - ±10% - ±100ppm/°C - - -
RS Stock No. 167-9378
Mfr. Part No.T7YB472MT20
BrandVishay
$1.503
Each (In a Tube of 50)
units
4.7 kΩ Through Hole 1 Top Adjust 0.5W T7 Pin - ±10% - ±100ppm/°C - - -
RS Stock No. 154-2072
Mfr. Part No.M64W104KB40
BrandVishay
$4.28
Each
units
100 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 1/2W 64W Pin 9.7mm ±10% 5mm ±100ppm/°C 11.1mm 9.7 x 5 x 11.1mm -
RS Stock No. 154-2022
Mfr. Part No.M64W102KB40
BrandVishay
$4.03
Each
units
1 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 1/2W 64W Pin 9.7mm ±10% 5mm ±100ppm/°C 11.1mm 9.7 x 5 x 11.1mm -