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. 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. 106-8293
FabrikantnummerEVM3YSX50B14
FabrikantPanasonic
€ 0,143
Each (On a Reel of 2000)
Aantal stuks
10 kΩ Surface Mount 1 Top Adjust 0.15W EVM3Y Solder Pad 3.1mm ±25% - ±250ppm/°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. 731-2874
FabrikantnummerEVM3YSX50B53
FabrikantPanasonic
€ 0,292
Each (In a Pack of 5)
Aantal stuks
5 kΩ Surface Mount 1 Top Adjust 0.15W EVM3Y Solder Pad 3.1mm ±25% - ±250ppm/°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. 923-0124
FabrikantnummerEVMAASA00B14
FabrikantPanasonic
€ 0,212
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. 729-9667
FabrikantnummerEVM2WSX80B14
FabrikantPanasonic
€ 0,39
Each (In a Pack of 5)
Aantal stuks
10 kΩ Surface Mount 1 Top Adjust 0.15W EVM2W Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS-stocknr. 172-4449
FabrikantnummerEVM3YSX50B53
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. 106-7948
FabrikantnummerEVM3WSX80B24
FabrikantPanasonic
€ 0,167
Each (On a Reel of 3000)
Aantal stuks
20 kΩ Surface Mount 1 Top Adjust 0.15W EVM3W Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS-stocknr. 106-7950
FabrikantnummerEVM3YSX50B55
FabrikantPanasonic
€ 0,115
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. 729-9872
FabrikantnummerEVM3WSX80B24
FabrikantPanasonic
€ 0,338
Each (In a Pack of 5)
Aantal stuks
20 kΩ Surface Mount 1 Top Adjust 0.15W EVM3W Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS-stocknr. 731-2896
FabrikantnummerEVM3YSX50B55
FabrikantPanasonic
€ 0,52
Each (In a Pack of 5)
Aantal stuks
500 kΩ Surface Mount 1 Top Adjust 0.15W EVM3Y Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS-stocknr. 726-3823
FabrikantnummerEVMAASA00B12
FabrikantPanasonic
€ 0,396
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. 729-9610
FabrikantnummerEVM2NSX80B53
FabrikantPanasonic
€ 0,312
Each (In a Pack of 5)
Aantal stuks
5 kΩ Surface Mount 1 Top Adjust 0.15W EVM2N Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS-stocknr. 172-3709
FabrikantnummerEVM2WSX80B52
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. 172-4101
FabrikantnummerEVM3WSX80B23
FabrikantPanasonic
€ 0,138
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. 172-3714
FabrikantnummerEVMAASA00B54
FabrikantPanasonic
€ 0,274
Each (In a Box of 1000)
Aantal stuks
- Through Hole 1 Top Adjust 0.3W EVMAA Pin 7.8mm ±25% - ±200ppm/°C - - -
RS-stocknr. 172-4102
FabrikantnummerEVM3WSX80B52
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. 729-9623
FabrikantnummerEVM2NSX80B24
FabrikantPanasonic
€ 0,528
Each (In a Pack of 5)
Aantal stuks
20 kΩ Surface Mount 1 Top Adjust 0.15W EVM2N Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS-stocknr. 106-8193
FabrikantnummerEVM2NSX80B24
FabrikantPanasonic
€ 0,154
Each (On a Reel of 3000)
Aantal stuks
20 kΩ Surface Mount 1 Top Adjust 0.15W EVM2N Solder Pad 2.2mm ±25% - ±250ppm/°C - - -