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 youll 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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Omschrijving Prijs Maximum Resistance Mounting Type Number of Turns Orientation Power Rating Series Termination Style Length Tolerance Depth Temperature Coefficient Height Dimensions Maximum Voltage Rating
RS-stocknr. 473-477
FabrikantnummerCB10LV223M
FabrikantTE Connectivity
0,228 €
Each (In a Pack of 5)
Aantal stuks
22 kΩ Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - ±500ppm/°C - - -
RS-stocknr. 473-534
FabrikantnummerCB10LV471M
FabrikantTE Connectivity
0,404 €
Each (In a Pack of 5)
Aantal stuks
470 Ω Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - ±500ppm/°C - - -
RS-stocknr. 162-1633
FabrikantnummerCB10LV471M
FabrikantTE Connectivity
0,164 €
Each (In a Box of 1000)
Aantal stuks
470 Ω Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - ±500ppm/°C - - -
RS-stocknr. 172-8310
FabrikantnummerPC910 100K RS
FabrikantTE Connectivity
6,992 €
Each (In a Box of 300)
Aantal stuks
- Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS-stocknr. 473-578
FabrikantnummerCB10LV105M
FabrikantTE Connectivity
0,478 €
Each (In a Pack of 5)
Aantal stuks
1 MΩ Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - - - - -
RS-stocknr. 186-211
FabrikantnummerPC910 100K RS
FabrikantTE Connectivity
9,98 €
Each
Aantal stuks
100 kΩ Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS-stocknr. 162-1634
FabrikantnummerCB10LV105M
FabrikantTE Connectivity
0,14 €
Each (In a Box of 1000)
Aantal stuks
1 MΩ Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - - - - -
RS-stocknr. 172-8308
FabrikantnummerPC910 470R RS
FabrikantTE Connectivity
6,992 €
Each (In a Box of 300)
Aantal stuks
- Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS-stocknr. 754-2113
Fabrikantnummer3203X102P
FabrikantTE Connectivity
2,25 €
Each
Aantal stuks
1 kΩ Surface Mount 1 Top Adjust 0.05W 3203 Tab 3.4mm ±20% - ±100ppm/°C - - -
RS-stocknr. 172-8309
FabrikantnummerPC910 22K RS
FabrikantTE Connectivity
6,499 €
Each (In a Box of 300)
Aantal stuks
- Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS-stocknr. 162-1720
Fabrikantnummer416MA503P
FabrikantTE Connectivity
0,214 €
Each (In a Box of 500)
Aantal stuks
50 kΩ Through Hole 1 Top Adjust 0.2W 416 Pin 6.8mm ±25% - ±250ppm/°C - - -
RS-stocknr. 652-4192
Fabrikantnummer416MA201P
FabrikantTE Connectivity
0,552 €
Each (In a Pack of 10)
Aantal stuks
200 Ω Through Hole 1 Top Adjust 0.2W 416 Pin 6.8mm ±25% - ±250ppm/°C - - -
RS-stocknr. 652-4906
Fabrikantnummer416MA101P
FabrikantTE Connectivity
0,546 €
Each (In a Pack of 10)
Aantal stuks
100 Ω Through Hole 1 Top Adjust 0.2W 416 Pin 6.8mm ±25% - ±250ppm/°C - - -
RS-stocknr. 652-4243
Fabrikantnummer416MA504P
FabrikantTE Connectivity
0,529 €
Each (In a Pack of 10)
Aantal stuks
500 kΩ Through Hole 1 Top Adjust 0.2W 416 Pin 6.8mm ±25% - ±250ppm/°C - - -
RS-stocknr. 186-233
FabrikantnummerPC910 470K RS
FabrikantTE Connectivity
11,62 €
Each
Aantal stuks
470 kΩ Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS-stocknr. 163-9529
Fabrikantnummer416MA103P
FabrikantTE Connectivity
0,618 €
Each (In a Box of 500)
Aantal stuks
10 kΩ Through Hole 1 Top Adjust 0.2W 416 Pin 6.8mm ±25% - ±250ppm/°C - - -
RS-stocknr. 753-6767
Fabrikantnummer3150W102P
FabrikantTE Connectivity
0,53 €
Each
Aantal stuks
1 kΩ Surface Mount 1 Top Adjust 0.2W 3150 Tab 3.8mm ±25% - ±250ppm/°C - - -
RS-stocknr. 164-3583
Fabrikantnummer3142W503P
FabrikantTE Connectivity
0,571 €
Each (On a Reel of 800)
Aantal stuks
50 kΩ Surface Mount 1 Top Adjust 0.15W 3142 Tab 4mm ±25% - ±250ppm/°C - - -
RS-stocknr. 473-574
FabrikantnummerCB10LV474M
FabrikantTE Connectivity
0,348 €
Each (In a Pack of 5)
Aantal stuks
470 kΩ Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - - - - -
RS-stocknr. 652-4366
Fabrikantnummer416PA202M
FabrikantTE Connectivity
0,492 €
Each (In a Pack of 10)
Aantal stuks
2 kΩ Through Hole 1 Top Adjust 0.2W 416 Pin 6.8mm ±20% - ±250ppm/°C - - -