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. 172-3697
FabrikantnummerEVM3YSX50B54
FabrikantPanasonic
0,143 €
Each (On a Reel of 2000)
Aantal stuks
- Surface Mount 1 Top Adjust 0.15W EVM3Y Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS-stocknr. 923-0124
FabrikantnummerEVMAASA00B14
FabrikantPanasonic
0,213 €
Each (On a Reel of 1000)
Aantal stuks
10 kΩ Through Hole 1 Top Adjust 0.3W EVMAA Pin 7.8mm ±25% - ±200ppm/°C - - -
RS-stocknr. 726-3845
FabrikantnummerEVMAASA00B14
FabrikantPanasonic
0,356 €
Each (In a Pack of 5)
Aantal stuks
10 kΩ Through Hole 1 Top Adjust 0.3W EVMAA Pin 7.8mm ±25% - ±200ppm/°C - - -
RS-stocknr. 729-9888
FabrikantnummerEVM3WSX80B25
FabrikantPanasonic
0,618 €
Each (In a Pack of 5)
Aantal stuks
200 kΩ Surface Mount 1 Top Adjust 0.15W EVM3W Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS-stocknr. 172-4729
FabrikantnummerEVMAASA00B13
FabrikantPanasonic
0,249 €
Each (In a Box of 1000)
Aantal stuks
- Through Hole 1 Top Adjust 0.3W EVMAA Pin 7.8mm ±25% - ±200ppm/°C - - -
RS-stocknr. 172-4469
FabrikantnummerEVM2WSX80B14
FabrikantPanasonic
0,242 €
Each (On a Reel of 3000)
Aantal stuks
- Surface Mount 1 Top Adjust 0.15W EVM2W Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS-stocknr. 726-3823
FabrikantnummerEVMAASA00B12
FabrikantPanasonic
0,374 €
Each (In a Pack of 5)
Aantal stuks
100 Ω Through Hole 1 Top Adjust 0.3W EVM1D Pin 7.8mm ±25% - ±200ppm/°C - - -
RS-stocknr. 731-2906
FabrikantnummerEVM3YSX50B16
FabrikantPanasonic
0,286 €
Each (In a Pack of 5)
Aantal stuks
1 MΩ Surface Mount 1 Top Adjust 0.15W EVM3Y Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS-stocknr. 731-2883
FabrikantnummerEVM3YSX50B14
FabrikantPanasonic
0,388 €
Each (In a Pack of 5)
Aantal stuks
10 kΩ Surface Mount 1 Top Adjust 0.15W EVM3Y Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS-stocknr. 172-4467
FabrikantnummerEVM3WSX80B25
FabrikantPanasonic
0,239 €
Each (On a Reel of 3000)
Aantal stuks
- Surface Mount 1 Top Adjust 0.15W EVM3W Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS-stocknr. 172-4462
FabrikantnummerEVM2NSX80B54
FabrikantPanasonic
0,199 €
Each (On a Reel of 3000)
Aantal stuks
- Surface Mount 1 Top Adjust 0.15W EVM2N Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS-stocknr. 172-4461
FabrikantnummerEVM2NSX80B13
FabrikantPanasonic
0,249 €
Each (On a Reel of 3000)
Aantal stuks
- Surface Mount 1 Top Adjust 0.15W EVM2N Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS-stocknr. 726-3813
FabrikantnummerEVM1DSX30B15
FabrikantPanasonic
0,40 €
Each (In a Pack of 5)
Aantal stuks
100 kΩ Surface Mount 1 Top Adjust 0.2W EVM1D Solder Pad 3.8mm ±25% - ±250ppm/°C - - -
RS-stocknr. 172-4154
FabrikantnummerEVM1DSX30B16
FabrikantPanasonic
0,684 €
Each (On a Reel of 1000)
Aantal stuks
- Surface Mount 1 Top Adjust 0.2W EVM1D Solder Pad 3.8mm ±25% - ±250ppm/°C - - -
RS-stocknr. 726-3851
FabrikantnummerEVMAASA00B15
FabrikantPanasonic
0,374 €
Each (In a Pack of 5)
Aantal stuks
100 kΩ Through Hole 1 Top Adjust 0.3W EVMAA Pin 7.8mm ±25% - ±200ppm/°C - - -
RS-stocknr. 729-9664
FabrikantnummerEVM2WSX80B54
FabrikantPanasonic
0,11 €
Each (In a Pack of 5)
Aantal stuks
50 kΩ Surface Mount 1 Top Adjust 0.15W EVM2W Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS-stocknr. 729-9626
FabrikantnummerEVM2NSX80B54
FabrikantPanasonic
0,528 €
Each (In a Pack of 5)
Aantal stuks
50 kΩ Surface Mount 1 Top Adjust 0.15W EVM2N Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS-stocknr. 729-9654
FabrikantnummerEVM2WSX80B23
FabrikantPanasonic
0,11 €
Each (In a Pack of 5)
Aantal stuks
2 kΩ Surface Mount 1 Top Adjust 0.15W EVM2W Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS-stocknr. 106-7950
FabrikantnummerEVM3YSX50B55
FabrikantPanasonic
0,128 €
Each (On a Reel of 2000)
Aantal stuks
500 kΩ Surface Mount 1 Top Adjust 0.15W EVM3Y Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS-stocknr. 106-8523
FabrikantnummerEVM3YSX50B13
FabrikantPanasonic
0,143 €
Each (On a Reel of 2000)
Aantal stuks
1 kΩ Surface Mount 1 Top Adjust 0.15W EVM3Y Solder Pad 3.1mm ±25% - ±250ppm/°C - - -