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 512 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. 850-9690
Mfr. Part No.T7YA502KT20
BrandVishay
R 20.513
Each (In a Pack of 200)
units
5 kΩ Through Hole - Top Adjust 0.5W T7 PC Pin - ±10% - ±100ppm/K - - -
RS stock no. 169-3076
Mfr. Part No.M64W102KB40
BrandVishay
R 21.243
Each (In a Box of 200)
units
1 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 0.5W 64W Pin 9.7mm ±10% - ±100ppm/°C - - -
RS stock no. 154-2022
Mfr. Part No.M64W102KB40
BrandVishay
R 38.78
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 -
RS stock no. 788-5114
Mfr. Part No.T93YB103KT20
BrandVishay
R 21.11
Each (In a Pack of 5)
units
10 kΩ Through Hole 21 (Electrical) Turns, 23 (Mechanical) Turns Top Adjust 0.5W T93 Pin 9.7mm ±10% - ±100ppm/°C - - -
RS stock no. 167-9960
Mfr. Part No.T93YB103KT20
BrandVishay
R 16.163
Each (In a Tube of 50)
units
10 kΩ Through Hole 21 (Electrical) Turns, 23 (Mechanical) Turns Top Adjust 0.5W T93 Pin 9.7mm ±10% - ±100ppm/°C - - -
RS stock no. 154-2050
Mfr. Part No.M64W103KB40
BrandVishay
R 34.43
Each
units
10 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. 169-3080
Mfr. Part No.M64W103KB40
BrandVishay
R 27.915
Each (In a Box of 200)
units
10 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 0.5W 64W Pin 9.7mm ±10% - ±100ppm/°C - - -
RS stock no. 162-2407
Mfr. Part No.TSM4YL204KB25
BrandVishay
R 23.996
Each (In a Box of 50)
units
200 kΩ Surface Mount 11 Top Adjust 0.2W TSM4 Gull Wing 4.8mm ±10% - ±100ppm/°C - - -
RS stock no. 486-7453
Mfr. Part No.TSM4YL204KB25
BrandVishay
R 24.382
Each (In a Pack of 5)
units
200 kΩ Surface Mount 11 Top Adjust 0.2W TSM4 Gull Wing 4.8mm ±10% - ±100ppm/°C - - -
RS stock no. 167-9963
Mfr. Part No.T93YB203KT20
BrandVishay
R 17.061
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. 788-5123
Mfr. Part No.T93YB203KT20
BrandVishay
R 25.76
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. 167-9381
Mfr. Part No.T7YB104MT20
BrandVishay
R 14.735
Each (In a Tube of 50)
units
100 kΩ Through Hole 1 Top Adjust 0.5W T7 Pin - ±10% - ±100ppm/°C - - -
RS stock no. 374-6951
Mfr. Part No.T7YB104MT20
BrandVishay
R 27.932
Each (In a Pack of 5)
units
100 kΩ Through Hole 1 Top Adjust 0.5W T7 Pin - ±10% - ±100ppm/°C - - -
RS stock no. 850-9479
Mfr. Part No.M70L103KB25
BrandVishay
R 346.47
Each
units
10 kΩ Wire Leads 20 Side Adjust 0.5W 70 Wire Lead - ±10% - ±100ppm/°C - - -
RS stock no. 850-9625
Mfr. Part No.T73XX103KT20
BrandVishay
R 19.08
Each
units
10 kΩ Through Hole 1 Side Adjust 0.5W T73 PC Pin 6.6mm ±10% - ±100ppm/°C - - -
RS stock no. 788-5088
Mfr. Part No.T93YA103KT20
BrandVishay
R 25.76
Each (In a Pack of 5)
units
10 kΩ Through Hole 21 (Electrical) Turns, 23 (Mechanical) Turns Top Adjust 0.5W T93 Pin 9.7mm ±10% - ±100ppm/°C - - -
RS stock no. 167-9436
Mfr. Part No.TS53YL103MR10
BrandVishay
R 9.95
Each (On a Reel of 500)
units
10 kΩ Surface Mount 1 Top Adjust 0.25W TS53 Gull Wing 5mm ±20% - ±100ppm/°C - - -
RS stock no. 154-1984
Mfr. Part No.M64W500KB40
BrandVishay
R 26.85
Each
units
50 Ω 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. 167-9952
Mfr. Part No.T93YA103KT20
BrandVishay
R 15.743
Each (In a Tube of 50)
units
10 kΩ Through Hole 21 (Electrical) Turns, 23 (Mechanical) Turns Top Adjust 0.5W T93 Pin 9.7mm ±10% - ±100ppm/°C - - -
RS stock no. 169-3072
Mfr. Part No.M64W500KB40
BrandVishay
R 27.915
Each (In a Box of 200)
units
50 Ω Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 0.5W 64W Pin 9.7mm ±10% - - - - -