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.


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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. 473-584
FabrikantnummerCB10LV224M
FabrikantTE Connectivity
0,228 €
Each (In a Pack of 5)
Aantal stuks
220 kΩ Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - - - - -
RS-stocknr. 473-580
FabrikantnummerCB10LV473M
FabrikantTE Connectivity
0,38 €
Each (In a Pack of 5)
Aantal stuks
47 kΩ Through Hole 1 Top Adjust 3/20W CB10 Pin 11mm ±20% - ±500ppm/°C - - -
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
0,382 €
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
164,05 €
1 Box of 1000
Box(es)
470 Ω Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - ±500ppm/°C - - -
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. 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
0,226 €
Each (In a Pack of 5)
Aantal stuks
1 MΩ Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - - - - -
RS-stocknr. 162-1634
FabrikantnummerCB10LV105M
FabrikantTE Connectivity
140,45 €
1 Box of 1000
Box(es)
1 MΩ Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - - - - -
RS-stocknr. 168-0952
Fabrikantnummer416MA104P
FabrikantTE Connectivity
307,26 €
1 Reel of 1000
Reel(s)
100 kΩ Through Hole 1 Top Adjust 0.2W 416 Pin 6.8mm ±25% - ±250ppm/°C - - -
RS-stocknr. 186-182
FabrikantnummerPC910 10K RS
FabrikantTE Connectivity
6,49 €
Each
Aantal stuks
10 kΩ Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS-stocknr. 161-5583
Fabrikantnummer416MA201P
FabrikantTE Connectivity
0,412 €
Each (In a Box of 500)
Aantal stuks
200 Ω Through Hole 1 Top Adjust 0.2W 416 Pin 6.8mm ±25% - ±250ppm/°C - - -
RS-stocknr. 473-512
FabrikantnummerCB10LH221M
FabrikantTE Connectivity
0,21 €
Each (In a Pack of 5)
Aantal stuks
220 Ω Through Hole 1 Side Adjust 0.15W CB10 Pin 9.8mm ±20% - ±500ppm/°C - - -
RS-stocknr. 135-4435
FabrikantnummerPC910 10K RS
FabrikantTE Connectivity
6,037 €
Each (In a Box of 100)
Aantal stuks
10 kΩ Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS-stocknr. 500-2809
Fabrikantnummer3204X105P
FabrikantTE Connectivity
0,79 €
Each (In a Pack of 5)
Aantal stuks
1 MΩ Surface Mount 1 Top Adjust 0.1W 3204 J-Hook 5mm ±25% - ±250ppm/°C - - -
RS-stocknr. 161-5716
Fabrikantnummer3204X105P
FabrikantTE Connectivity
0,553 €
Each (On a Reel of 500)
Aantal stuks
1 MΩ Surface Mount 1 Top Adjust 0.1W 3204 J-Hook 5mm ±25% - ±250ppm/°C - - -
RS-stocknr. 168-0233
Fabrikantnummer409VA501M
FabrikantTE Connectivity
0,368 €
Each (In a Box of 100)
Aantal stuks
500 Ω Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS-stocknr. 652-4811
Fabrikantnummer409VA503M
FabrikantTE Connectivity
0,534 €
Each (In a Pack of 5)
Aantal stuks
50 kΩ Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS-stocknr. 186-176
FabrikantnummerPC910 4K7 RS
FabrikantTE Connectivity
9,37 €
Each
Aantal stuks
4.7 kΩ Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS-stocknr. 164-3584
Fabrikantnummer3150W102P
FabrikantTE Connectivity
0,443 €
Each (On a Reel of 1000)
Aantal stuks
1 kΩ Surface Mount 1 Top Adjust 0.2W 3150 Tab 3.8mm ±25% - ±250ppm/°C - - -