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. 162-215
FabrikantnummerM43P202KB40
FabrikantVishay
2,00 €
Each
Aantal stuks
2 kΩ Through Hole 20 Side Adjust 1/2W 43P Pin 20.57mm ±10% 4.83mm ±100ppm/°C 6.35mm 20.57 x 4.83 x 6.35mm -
RS-stocknr. 169-3022
FabrikantnummerM43P202KB40
FabrikantVishay
1,272 €
Each (In a Box of 200)
Aantal stuks
2 kΩ Through Hole 20 Side Adjust 0.5W 43P Pin 20.57mm ±10% - ±100ppm/°C - - -
RS-stocknr. 169-3027
FabrikantnummerM43P104KB40
FabrikantVishay
1,272 €
Each (In a Box of 200)
Aantal stuks
100 kΩ Through Hole 20 Side Adjust 0.5W 43P Pin 20.57mm ±10% - ±100ppm/°C - - -
RS-stocknr. 162-265
FabrikantnummerM43P104KB40
FabrikantVishay
1,94 €
Each
Aantal stuks
100 kΩ Through Hole 20 Side Adjust 1/2W 43P Pin 20.57mm ±10% 4.83mm ±100ppm/°C 6.35mm 20.57 x 4.83 x 6.35mm -
RS-stocknr. 169-3019
FabrikantnummerM43P201KB40
FabrikantVishay
1,272 €
Each (In a Box of 200)
Aantal stuks
200 Ω Through Hole 20 Side Adjust 0.5W 43P Pin 20.57mm ±10% - ±100ppm/°C - - -
RS-stocknr. 277-0212
FabrikantnummerM43P103KB30T601
FabrikantVishay
3,37 €
Each
Aantal stuks
10 kΩ Panel Mount, Through Hole 20 Side Adjust 0.5W 43P Pin 27.81mm ±10% - ±100ppm/°C - - -
RS-stocknr. 162-186
FabrikantnummerM43P201KB40
FabrikantVishay
1,57 €
Each
Aantal stuks
200 Ω Through Hole 20 Side Adjust 1/2W 43P Pin 20.57mm ±10% 4.83mm ±100ppm/°C 6.35mm 20.57 x 4.83 x 6.35mm -
RS-stocknr. 167-9598
FabrikantnummerM43P103KB30T601
FabrikantVishay
2,825 €
Each (In a Box of 100)
Aantal stuks
10 kΩ Panel Mount, Through Hole 20 Side Adjust 0.5W 43P Pin 27.81mm ±10% - ±100ppm/°C - - -
RS-stocknr. 167-9445
FabrikantnummerTS53YJ104MR10
FabrikantVishay
0,745 €
Each (On a Reel of 500)
Aantal stuks
100 kΩ Surface Mount 1 Top Adjust 0.25W TS53 J-Hook 5mm ±20% - ±100ppm/°C - - -
RS-stocknr. 486-7661
FabrikantnummerTS53YJ104MR10
FabrikantVishay
1,368 €
Each (In a Pack of 5)
Aantal stuks
100 kΩ Surface Mount 1 Top Adjust 0.25W TS53 J-Hook 5mm ±20% - ±100ppm/°C - - -
RS-stocknr. 154-1962
FabrikantnummerM64W100KB40
FabrikantVishay
1,89 €
Each
Aantal stuks
10 Ω Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 1/2W 64W Pin 9.7mm ±10% 5mm 0 → +200ppm/°C 11.1mm 9.7 x 5 x 11.1mm -
RS-stocknr. 788-5114
FabrikantnummerT93YB103KT20
FabrikantVishay
1,248 €
Each (In a Pack of 5)
Aantal stuks
10 kΩ Through Hole 21 (Electrical) Turns, 23 (Mechanical) Turns Top Adjust 0.5W T93 Pin 9.7mm ±10% - ±100ppm/°C - - -
RS-stocknr. 154-2432
FabrikantnummerM64Y103KB40
FabrikantVishay
2,02 €
Each
Aantal stuks
10 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 1/2W 64Y Pin 9.7mm ±10% 5mm ±100ppm/°C 11.1mm 9.7 x 5 x 11.1mm -
RS-stocknr. 167-9960
FabrikantnummerT93YB103KT20
FabrikantVishay
1,099 €
Each (In a Tube of 50)
Aantal stuks
10 kΩ Through Hole 21 (Electrical) Turns, 23 (Mechanical) Turns Top Adjust 0.5W T93 Pin 9.7mm ±10% - ±100ppm/°C - - -
RS-stocknr. 169-3104
FabrikantnummerM64Y103KB40
FabrikantVishay
1,383 €
Each (In a Box of 200)
Aantal stuks
10 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 0.5W 64Y Pin 9.7mm ±10% - ±100ppm/°C - - -
RS-stocknr. 169-3070
FabrikantnummerM64W100KB40
FabrikantVishay
1,383 €
Each (In a Box of 200)
Aantal stuks
10 Ω Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 0.5W 64W Pin 9.7mm ±10% - 0 → +200ppm/°C - - -
RS-stocknr. 154-2050
FabrikantnummerM64W103KB40
FabrikantVishay
2,07 €
Each
Aantal stuks
10 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 1/2W 64W Pin 9.7mm ±10% 5mm ±100ppm/°C 11.1mm 9.7 x 5 x 11.1mm -
RS-stocknr. 850-9463
FabrikantnummerM63X103KB40
FabrikantVishay
1,234 €
Each (In a Pack of 200)
Aantal stuks
10 kΩ Through Hole 1 Side Adjust 0.5W 63 Solder - ±10% - ±100ppm/°C - - -
RS-stocknr. 154-2101
FabrikantnummerM64W504KB40
FabrikantVishay
1,74 €
Each
Aantal stuks
500 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 1/2W 64W Pin 9.7mm ±10% 5mm - 11.1mm 9.7 x 5 x 11.1mm -
RS-stocknr. 277-0183
FabrikantnummerM43P102KB30T601
FabrikantVishay
3,62 €
Each
Aantal stuks
1 kΩ Panel Mount, Through Hole 20 Side Adjust 0.5W 43P Pin 27.81mm ±10% - ±100ppm/°C - - -