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. 173-2996
FabrikantnummerY405310K0000J0L
€ 28,927
Each (In a Box of 25)
Aantal stuks
10 kΩ Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -
RS-stocknr. 763-7157
FabrikantnummerY405310K0000J0L
€ 38,73
Each
Aantal stuks
10 kΩ Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -
RS-stocknr. 763-7160
FabrikantnummerY40532K00000J0L
€ 32,63
Each
Aantal stuks
2 kΩ Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -
RS-stocknr. 173-3001
FabrikantnummerY40531K00000J0L
€ 28,927
Each (In a Box of 25)
Aantal stuks
1 kΩ Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -
RS-stocknr. 763-7176
FabrikantnummerY0056100R000K0L
€ 18,24
Each
Aantal stuks
100 Ω Through Hole 26 Side Adjust 0.75W 1280G Solder Pin 19.05mm ±10% - ±15ppm/°C - - -
RS-stocknr. 763-7163
FabrikantnummerY4053500R000J0L
€ 67,94
Each
Aantal stuks
500 Ω Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -
RS-stocknr. 173-2943
FabrikantnummerY0056100R000K0L
€ 18,125
Each (In a Box of 100)
Aantal stuks
100 Ω Through Hole 26 Side Adjust 0.75W 1280G Solder Pin 19.05mm ±10% - ±15ppm/°C - - -
RS-stocknr. 763-7173
FabrikantnummerY005620K0000K0L
€ 18,75
Each
Aantal stuks
20 kΩ Through Hole 26 Side Adjust 0.75W 1280G Solder Pin 19.05mm ±10% - ±15ppm/°C - - -
RS-stocknr. 173-3002
FabrikantnummerY4053100R000J0L
€ 34,034
Each (In a Box of 25)
Aantal stuks
100 Ω Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -
RS-stocknr. 173-2951
FabrikantnummerY0056500R000K0L
€ 22,483
Each (In a Box of 100)
Aantal stuks
500 Ω Through Hole 26 Side Adjust 0.75W 1280G Solder Pin 19.05mm ±10% - ±15ppm/°C - - -
RS-stocknr. 763-7154
FabrikantnummerY4053100R000J0L
€ 41,87
Each
Aantal stuks
100 Ω Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -
RS-stocknr. 173-2942
FabrikantnummerY005620K0000K0L
€ 12,001
Each (In a Box of 100)
Aantal stuks
20 kΩ Through Hole 26 Side Adjust 0.75W 1280G Solder Pin 19.05mm ±10% - ±15ppm/°C - - -
RS-stocknr. 173-3003
FabrikantnummerY40535K00000J0L
€ 27,588
Each (In a Box of 25)
Aantal stuks
5 kΩ Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -
RS-stocknr. 173-3022
FabrikantnummerY40532K00000J0L
€ 25,156
Each (In a Box of 25)
Aantal stuks
2 kΩ Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -
RS-stocknr. 763-7151
FabrikantnummerY40531K00000J0L
€ 37,53
Each
Aantal stuks
1 kΩ Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -
RS-stocknr. 173-2997
FabrikantnummerY4053500R000J0L
€ 47,374
Each (In a Box of 25)
Aantal stuks
500 Ω Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -
RS-stocknr. 763-7182
FabrikantnummerY0056500R000K0L
€ 19,42
Each
Aantal stuks
500 Ω Through Hole 26 Side Adjust 0.75W 1280G Solder Pin 19.05mm ±10% - ±15ppm/°C - - -
RS-stocknr. 763-7167
FabrikantnummerY40535K00000J0L
€ 25,21
Each
Aantal stuks
5 kΩ Through Hole 21 Top Adjust 0.25W 1240 Solder Pin 6.35mm ±5% - ±10ppm/°C - - -