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 81 - 100 of 2499 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. 183-1215
Mfr. Part No.M63M203KB30T607
BrandVishay
€3.05
Each
units
20kΩ 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. 763-7157
Mfr. Part No.Y405310K0000J0L
€33.66
Each
units
10kΩ Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -
RS Stock No. 167-3409
Mfr. Part No.3299W-1-104LF
BrandBourns
€1.927
Each (In a Tube of 50)
units
100kΩ Through Hole 25 Top Adjust 0.5W 3299 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS Stock No. 691-2533
Mfr. Part No.3269P-1-103LF
BrandBourns
€4.17
Each
units
10kΩ Surface Mount 12 Side Adjust 0.25W 3269 Gull Wing 6.35mm ±10% - ±100ppm/°C - - -
RS Stock No. 763-7176
Mfr. Part No.Y0056100R000K0L
€18.27
Each
units
100Ω Through Hole 26 Side Adjust 0.75W 1280G Solder Pin 19.05mm ±10% - ±15ppm/°C - - -
RS Stock No. 169-3140
Mfr. Part No.T63YB103KT20
BrandVishay
€1.57
Each (In a Tube of 50)
units
10kΩ Through Hole 14 Top Adjust 0.25W T63 Pin 6.8mm ±10% - ±100ppm/°C - - -
RS Stock No. 521-9136
Mfr. Part No.3006P-1-502LF
BrandBourns
€1.70
Each
units
5kΩ Through Hole 15 Side Adjust 0.75W 3006 Pin 20.57mm ±10% - ±100ppm/°C - - -
RS Stock No. 173-2943
Mfr. Part No.Y0056100R000K0L
€15.755
Each (In a Box of 100)
units
100Ω Through Hole 26 Side Adjust 0.75W 1280G Solder Pin 19.05mm ±10% - ±15ppm/°C - - -
RS Stock No. 167-9661
Mfr. Part No.M63M203KB30T607
BrandVishay
€1.883
Each (In a Box of 400)
units
20kΩ Through Hole 1 Top Adjust 0.5W 63M Pin 9.52mm ±10% - ±100ppm/°C - - -
RS Stock No. 167-9660
Mfr. Part No.M63M202KB30T607
BrandVishay
€1.922
Each (In a Box of 400)
units
2kΩ Through Hole 1 Top Adjust 0.5W 63M Pin 9.52mm ±10% - ±100ppm/°C - - -
RS Stock No. 162-2408
Mfr. Part No.TSM4YL105KB25
BrandVishay
€1.932
Each (In a Box of 50)
units
1MΩ Surface Mount 11 Top Adjust 0.25W TSM4 Gull Wing 4.8mm ±10% - ±100ppm/°C - - -
RS Stock No. 167-9431
Mfr. Part No.TS53YJ501MR10
BrandVishay
€0.593
Each (On a Reel of 500)
units
500Ω Surface Mount 1 Top Adjust 0.25W TS53 J-Hook 5mm ±20% - ±100ppm/°C - - -
RS Stock No. 522-0732
Mfr. Part No.3329H-1-103LF
BrandBourns
€2.77
Each
units
10kΩ Through Hole 1 Top Adjust 0.5W 3329 Pin - ±10% - ±100ppm/°C - - -
RS Stock No. 167-4446
Mfr. Part No.3223W-1-203E
BrandBourns
€1.672
Each (On a Reel of 500)
units
20kΩ Surface Mount 11 Top Adjust 0.125W 3223 J-Hook 3.9mm ±20% - ±100ppm/°C - - -
RS Stock No. 167-9379
Mfr. Part No.T7YB103MT20
BrandVishay
€1.271
Each (In a Tube of 50)
units
10kΩ Through Hole 1 Top Adjust 0.5W T7 Pin - ±10% - ±100ppm/°C - - -
RS Stock No. 788-4990
Mfr. Part No.T18501KT10
BrandVishay
€1.20
Each (In a Pack of 5)
units
500Ω Through Hole 15 Side Adjust 0.75W T18 Pin 19mm ±10% - - - - -
RS Stock No. 161-7049
Mfr. Part No.3299P-1-103LF
BrandBourns
€1.369
Each (In a Tube of 50)
units
10kΩ Through Hole 25 Side Adjust 0.5W 3299 Solder Pin 10.03mm ±10% - ±100ppm/°C - - -
RS Stock No. 522-2930
Mfr. Part No.3386W-1-504LF
BrandBourns
€1.40
Each
units
500kΩ Through Hole 1 Side Adjust 0.5W 3386 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS Stock No. 521-9079
Mfr. Part No.3006P-1-201LF
BrandBourns
€1.85
Each
units
200Ω Through Hole 15 Side Adjust 0.75W 3006 Pin 20.57mm ±10% - ±100ppm/°C - - -
RS Stock No. 169-3118
Mfr. Part No.M63M203KB40
BrandVishay
€1.463
Each (In a Box of 200)
units
20kΩ Through Hole 1 Top Adjust 0.5W 63M Pin 9.52mm ±10% - ±100ppm/°C - - -
Related Products
Bourns® 3299W 3/8" Square Multiturn Cermet Trimming Potentiometer ...
Description:
Bourns® 3299W 3/8" Square Multiturn Cermet Trimming Potentiometer (Trimpot®). Multi-contact wiper - low noise, high stabilitySealed to withstand immersion board washingMoulded body with built in stand-offsWiper idles at end of travelSuitable for 0.1in grid pitch.
Bourns® 3296Z 3/8" Square Multiturn Cermet Trimming Potentiometer ...
Description:
Bourns® 3296Z 3/8" Square Multiturn Cermet Trimming Potentiometer (Trimpot®). Slim body profile - higher packing densitySealed to withstand immersion board washingMoulded body with built-in stand-offsLarge screw slot for easier adjustmentWiper idles at end travelSlim body profile-higher packing densitySealed to ...
Accutrim™ 1240 Series (RJ26 Style) ultra high precision ...
Description:
Accutrim™ 1240 Series (RJ26 Style) ultra high precision Bulk Metal® Foil resistors offering proven reliability and excellent stability under different environmental conditions. The Accutrim™ 1240 Square trimming potentiometers are designed to meet or exceed the requirements of MIL-PRF-39035, Char. H ...
Bourns® 3296X Series 3/8" Square Multiturn Cermet Trimming ...
Description:
Bourns® 3296X Series 3/8" Square Multiturn Cermet Trimming Potentiometer (Trimpot®). Slim body profile - higher packing densitySealed to withstand immersion board washingMoulded body with built-in stand-offsLarge screw slot for easier adjustmentWiper idles at end travelSlim body profile-higher packing ...