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. 500-2770
Fabrikantnummer3204X103P
FabrikantTE Connectivity
€ 1,832
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Aantal stuks
10kΩ Surface Mount 1 Top Adjust 0.1W 3204 J-Hook 5mm ±25% - ±250ppm/°C - - -
RS-stocknr. 164-8610
Fabrikantnummer3204X103P
FabrikantTE Connectivity
€ 0,974
Each (On a Reel of 500)
Aantal stuks
10kΩ Surface Mount 1 Top Adjust 0.1W 3204 J-Hook 5mm ±25% - ±250ppm/°C - - -
RS-stocknr. 473-534
FabrikantnummerCB10LV471M
FabrikantTE Connectivity
€ 0,404
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Aantal stuks
470Ω Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - ±500ppm/°C - - -
RS-stocknr. 162-1633
FabrikantnummerCB10LV471M
FabrikantTE Connectivity
€ 0,216
Each (In a Box of 1000)
Aantal stuks
470Ω Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - ±500ppm/°C - - -
RS-stocknr. 473-574
FabrikantnummerCB10LV474M
FabrikantTE Connectivity
€ 0,348
Each (In a Pack of 5)
Aantal stuks
470kΩ Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - - - - -
RS-stocknr. 161-4844
FabrikantnummerCB10LH473M
FabrikantTE Connectivity
€ 0,137
Each (In a Box of 500)
Aantal stuks
47kΩ Through Hole 1 Side Adjust 0.15W CB10 Pin 9.8mm ±20% - ±500ppm/°C - - -
RS-stocknr. 473-518
FabrikantnummerCB10LH473M
FabrikantTE Connectivity
€ 0,188
Each (In a Pack of 5)
Aantal stuks
47kΩ Through Hole 1 Side Adjust 0.15W CB10 Pin 9.8mm ±20% - ±500ppm/°C - - -
RS-stocknr. 652-4439
Fabrikantnummer416XA204P
FabrikantTE Connectivity
€ 0,24
Each (In a Pack of 10)
Aantal stuks
200kΩ Through Hole 1 Side Adjust 0.2W 416 Pin 6.8mm ±25% - ±250ppm/°C - - -
RS-stocknr. 186-211
FabrikantnummerPC910 100K RS
FabrikantTE Connectivity
€ 9,96
Each
Aantal stuks
100kΩ Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS-stocknr. 172-8310
FabrikantnummerPC910 100K RS
FabrikantTE Connectivity
€ 6,969
Each (In a Box of 300)
Aantal stuks
- Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS-stocknr. 168-0397
Fabrikantnummer409VA504M
FabrikantTE Connectivity
€ 0,321
Each (On a Reel of 1000)
Aantal stuks
500kΩ Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS-stocknr. 652-4697
Fabrikantnummer409VA103M
FabrikantTE Connectivity
€ 0,57
Each
Aantal stuks
10kΩ Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS-stocknr. 168-0375
Fabrikantnummer416XA204P
FabrikantTE Connectivity
€ 0,236
Each (On a Reel of 1000)
Aantal stuks
200kΩ Through Hole 1 Side Adjust 0.2W 416 Pin 6.8mm ±25% - ±250ppm/°C - - -
RS-stocknr. 168-0257
Fabrikantnummer409VA103M
FabrikantTE Connectivity
€ 0,415
Each (On a Reel of 1000)
Aantal stuks
10kΩ Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS-stocknr. 652-4754
Fabrikantnummer409VA504M
FabrikantTE Connectivity
€ 0,33
Each (In a Pack of 5)
Aantal stuks
500kΩ Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS-stocknr. 135-4435
FabrikantnummerPC910 10K RS
FabrikantTE Connectivity
€ 5,346
Each (In a Box of 100)
Aantal stuks
10kΩ Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -
RS-stocknr. 652-4726
Fabrikantnummer409VA104M
FabrikantTE Connectivity
€ 0,64
Each
Aantal stuks
100kΩ Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS-stocknr. 753-6812
Fabrikantnummer3142W203P
FabrikantTE Connectivity
€ 1,32
Each
Aantal stuks
20kΩ Surface Mount 1 Top Adjust 0.15W 3142 Tab 4mm ±25% - ±250ppm/°C - - -
RS-stocknr. 473-578
FabrikantnummerCB10LV105M
FabrikantTE Connectivity
€ 0,478
Each (In a Pack of 5)
Aantal stuks
1MΩ Through Hole 1 Top Adjust 0.15W CB10 Pin 11mm ±20% - - - - -
RS-stocknr. 186-182
FabrikantnummerPC910 10K RS
FabrikantTE Connectivity
€ 7,67
Each
Aantal stuks
10kΩ Through Hole 1 Top Adjust 1W PC910 Pin - ±20% - - - - -