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 136 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. 473-473
Mfr. Part No.CB10LV103M
TWD13.80
Each (In a Pack of 5)
units
10 kΩ Through Hole 1 Top Adjust 3/20W CB10LV Pin 11mm ±20% - ±500ppm/°C - - -
RS Stock No. 652-4697
Mfr. Part No.409VA103M
TWD22.00
Each
units
10 kΩ Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS Stock No. 168-0257
Mfr. Part No.409VA103M
TWD14.80
Each (On a Reel of 1000)
units
10 kΩ Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS Stock No. 473-562
Mfr. Part No.CB10LV102M
TWD13.00
Each (In a Pack of 5)
units
1 kΩ Through Hole 1 Top Adjust 3/20W CB10LV Pin 11mm ±20% - ±500ppm/°C - - -
RS Stock No. 163-9532
Mfr. Part No.416PA502M
TWD13.40
Each (In a Bag of 500)
units
5 kΩ Through Hole 1 Top Adjust 0.2W 416 Pin 6.8mm ±20% - ±250ppm/°C - - -
RS Stock No. 652-4372
Mfr. Part No.416PA502M
TWD19.30
Each (In a Pack of 10)
units
5 kΩ Through Hole 1 Top Adjust 0.2W 416 Pin 6.8mm ±20% - ±250ppm/°C - - -
RS Stock No. 161-5539
Mfr. Part No.409VA102M
TWD16.20
Each (In a Box of 500)
units
1 kΩ Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS Stock No. 173-5403
Mfr. Part No.3204X204P
TWD26.30
Each (On a Reel of 1000)
units
200 kΩ Surface Mount 1 Top Adjust 0.1W 3204 J-Hook 5mm ±25% - ±250ppm/°C - - -
RS Stock No. 473-578
Mfr. Part No.CB10LV105M
TWD13.80
Each (In a Pack of 5)
units
1 MΩ Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - - - - -
RS Stock No. 652-4732
Mfr. Part No.409VA501M
TWD22.00
Each (In a Pack of 5)
units
500 Ω Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS Stock No. 161-5566
Mfr. Part No.PC910 1K RS
TWD268.00
Each (In a Box of 100)
units
1 kΩ Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS Stock No. 473-477
Mfr. Part No.CB10LV223M
TWD7.20
Each (In a Pack of 5)
units
22 kΩ Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - ±500ppm/°C - - -
RS Stock No. 162-1634
Mfr. Part No.CB10LV105M
TWD8.90
Each (In a Box of 1000)
units
1 MΩ Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - - - - -
RS Stock No. 500-2770
Mfr. Part No.3204X103P
TWD64.40
Each (In a Pack of 5)
units
10 kΩ Surface Mount 1 Top Adjust 0.1W 3204 J-Hook 5mm ±25% - ±250ppm/°C - - -
RS Stock No. 172-8309
Mfr. Part No.PC910 22K RS
TWD285.10
Each (In a Box of 300)
units
- Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS Stock No. 168-0233
Mfr. Part No.409VA501M
TWD18.60
Each (In a Box of 100)
units
500 Ω Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS Stock No. 473-512
Mfr. Part No.CB10LH221M
TWD8.00
Each (In a Pack of 5)
units
220 Ω Through Hole 1 Side Adjust 0.15W CB10 Pin 9.8mm ±20% - ±500ppm/°C - - -
RS Stock No. 163-9533
Mfr. Part No.416PA503M
TWD16.10
Each (In a Box of 500)
units
50 kΩ Through Hole 1 Top Adjust 0.2W 416 Pin 6.8mm ±20% - ±250ppm/°C - - -
RS Stock No. 168-0248
Mfr. Part No.409VA105M
TWD22.30
Each (In a Box of 200)
units
1 MΩ Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS Stock No. 161-9952
Mfr. Part No.409VA202M
TWD14.10
Each (In a Box of 500)
units
2 kΩ Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -