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    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.

    3046 Products showing for Trimmer Potentiometers

    • RS Stock No. 181-4455
    • Mfr. Part No. PV36W102C01B00
    Each (In a Pack of 5)
    MYR7.704
    Bourns
    1kΩ
    Through Hole
    25
    Top Adjust
    0.5W
    PV36
    PC Pin
    9.53mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    -
    -
    -55°C
    • RS Stock No. 167-3500
    • Mfr. Part No. 3296W-1-500LF
    Each (In a Tube of 50)
    MYR7.797
    Bourns
    50Ω
    Through Hole
    25
    Top Adjust
    0.5W
    3296
    Pin
    9.53mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.19 mm
    -
    -55°C
    • RS Stock No. 788-5069
    • Mfr. Part No. T93YA101KT20
    Each (In a Pack of 5)
    MYR7.544
    Vishay
    100Ω
    Through Hole
    21
    Top Adjust
    0.5W
    T93
    Pin
    9.7mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.2 mm
    -
    -55°C
    • RS Stock No. 167-3501
    • Mfr. Part No. 3296W-1-501LF
    Each (In a Tube of 50)
    MYR8.471
    Bourns
    500Ω
    Through Hole
    25
    Top Adjust
    0.5W
    3296
    Pin
    9.53mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.19 mm
    -
    -55°C
    • RS Stock No. 167-3377
    • Mfr. Part No. 3296W-1-103LF
    Each (In a Tube of 50)
    MYR8.202
    Bourns
    10kΩ
    Through Hole
    25
    Top Adjust
    0.5W
    3296
    Pin
    9.53mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.19 mm
    -
    -55°C
    • RS Stock No. 788-5029
    • Mfr. Part No. T93XA502KT20
    Each (In a Pack of 5)
    MYR8.266
    Vishay
    5kΩ
    Through Hole
    21
    Side Adjust
    0.5W
    T93
    Pin
    9.7mm
    ±10%
    -
    -
    -
    -
    -
    2.2 mm
    -
    -55°C
    • RS Stock No. 167-3420
    • Mfr. Part No. 3296Y-1-253LF
    Each (In a Tube of 50)
    MYR7.23
    Bourns
    25kΩ
    Through Hole
    25
    Top Adjust
    0.5W
    3296
    Pin
    9.53mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.19 mm
    -
    -55°C
    Each (In a Pack of 5)
    MYR8.198
    Vishay
    100kΩ
    Through Hole
    21 (Electrical) Turns, 23 (Mechanical) Turns
    Side Adjust
    0.5W
    T93
    Pin
    9.7mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.2 mm
    -
    -55°C
    • RS Stock No. 788-5088
    • Mfr. Part No. T93YA103KT20
    Each (In a Pack of 5)
    MYR8.198
    Vishay
    10kΩ
    Through Hole
    21 (Electrical) Turns, 23 (Mechanical) Turns
    Top Adjust
    0.5W
    T93
    Pin
    9.7mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.2 mm
    -
    -55°C
    • RS Stock No. 691-7409
    • Mfr. Part No. 3314J-1-103E
    Each (In a Pack of 5)
    MYR8.978
    Bourns
    10kΩ
    Surface Mount
    1
    Top Adjust
    0.25W
    3314
    J-Hook
    4.5mm
    ±20%
    -
    ±100ppm/°C
    -
    -
    -
    -
    -
    -55°C
    • RS Stock No. 521-9798P
    • Mfr. Part No. 3296W-1-502LF
    Each (Supplied in a Tube)
    MYR8.66
    Bourns
    5kΩ
    Through Hole
    25
    Top Adjust
    0.5W
    3296
    Pin
    9.53mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.19 mm
    -
    -55°C
    • RS Stock No. 521-9776
    • Mfr. Part No. 3296W-1-500LF
    Each
    MYR8.66
    Bourns
    50Ω
    Through Hole
    25
    Top Adjust
    0.5W
    3296
    Pin
    9.53mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.19 mm
    -
    -55°C
    • RS Stock No. 474-8879
    • Mfr. Part No. ST-32EH 10k Ohm
    Each (In a Pack of 5)
    MYR6.888
    Nidec Components
    10kΩ
    Surface Mount
    1
    -
    0.125W
    -
    Gull Wing
    3.6mm
    ±20%
    -
    ±100ppm/°C
    -
    -
    -
    1.9 mm
    -
    -55°C
    • RS Stock No. 167-9940
    • Mfr. Part No. T93XA102KT20
    Each (In a Tube of 50)
    MYR7.713
    Vishay
    1kΩ
    Through Hole
    21
    Side Adjust
    0.5W
    T93
    Pin
    9.7mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.2 mm
    -
    -55°C
    Each (In a Tube of 50)
    MYR15.788
    Vishay
    200Ω
    Through Hole
    14
    Side Adjust
    0.25W
    T63
    Pin
    7.5mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    1.8 mm
    -
    -55°C
    • RS Stock No. 521-9631P
    • Mfr. Part No. 3296W-1-102LF
    Each (Supplied in a Tube)
    MYR10.89
    Bourns
    1kΩ
    Through Hole
    25
    Top Adjust
    0.5W
    3296
    Pin
    9.53mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.19 mm
    -
    -55°C
    • RS Stock No. 522-0401
    • Mfr. Part No. 3299W-1-503LF
    Each
    MYR11.58
    Bourns
    50kΩ
    Through Hole
    25
    Top Adjust
    0.5W
    3299
    Pin
    9.53mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.29 mm
    -
    -55°C
    • RS Stock No. 167-5376
    • Mfr. Part No. 3362P-1-500LF
    Each (In a Tube of 50)
    MYR2.869
    Bourns
    50Ω
    Through Hole
    1
    Top Adjust
    0.5W
    3362
    Pin
    6.6mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.77 mm
    -
    -55°C
    • RS Stock No. 167-3252
    • Mfr. Part No. 3362P-1-102LF
    Each (In a Tube of 50)
    MYR3.278
    Bourns
    1kΩ
    Through Hole
    1
    Top Adjust
    0.5W
    3362
    Pin
    6.6mm
    ±10%
    -
    ±100ppm/°C
    -
    -
    -
    2.77 mm
    -
    -55°C
    • RS Stock No. 167-9962
    • Mfr. Part No. T93YB204KT20
    Each (In a Tube of 50)
    MYR7.713
    Vishay
    200kΩ
    Through Hole
    21 (Electrical) Turns, 23 (Mechanical) Turns
    Top Adjust
    0.5W
    T93
    Pin
    9.7mm
    ±10%
    -
    -
    -
    -
    -
    2.2 mm
    -
    -55°C
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