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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제품설명 단가 Maximum Resistance Mounting Type Number of Turns Orientation Power Rating Series Termination Style Length Tolerance Depth Temperature Coefficient Height Dimensions Maximum Voltage Rating
RS 제품 번호 521-9710
제조사 부품 번호3296W-1-203LF
제조사Bourns
₩3,921.50
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20 kΩ Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 788-5025
제조사 부품 번호T93XA102KT20
제조사Vishay
₩2,431.95
Each (In a Pack of 5)
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1 kΩ Through Hole 21 Side Adjust 0.5W T93 Pin 9.7mm ±10% - ±100ppm/°C - - -
RS 제품 번호 374-6923
제조사 부품 번호T7YB103MT20
제조사Vishay
₩2,543.55
Each (In a Pack of 5)
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10 kΩ Through Hole 1 Top Adjust 0.5W T7 Pin - ±10% - ±100ppm/°C - - -
RS 제품 번호 183-1350
제조사 부품 번호M63M203KB40
제조사Vishay
₩13,264.90
Each
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20 kΩ Through Hole 1 Top Adjust 0.5W 63M Pin 9.52mm ±10% - ±100ppm/°C - - -
RS 제품 번호 521-9782
제조사 부품 번호3296W-1-501LF
제조사Bourns
₩3,292.20
Each
수량
500 Ω Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 167-3378
제조사 부품 번호3296W-1-104LF
제조사Bourns
₩2,890.75
Each (In a Tube of 50)
수량
100 kΩ Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 167-9379
제조사 부품 번호T7YB103MT20
제조사Vishay
₩1,720.50
Each (In a Tube of 50)
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10 kΩ Through Hole 1 Top Adjust 0.5W T7 Pin - ±10% - ±100ppm/°C - - -
RS 제품 번호 167-3553
제조사 부품 번호3266W-1-101LF
제조사Bourns
₩4,057.90
Each (In a Tube of 50)
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100 Ω Through Hole 12 Top Adjust 0.25W 3266 Pin 6.71mm ±10% - ±100ppm/°C - - -
RS 제품 번호 154-2432
제조사 부품 번호M64Y103KB40
제조사Vishay
₩3,839.35
Each
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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 제품 번호 619-7778
제조사 부품 번호SV01A103AEA01B00
제조사Murata
₩3,061.25
Each
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10 kΩ Surface Mount - Top Adjust - SV01 Gull Wing 11mm ±30% - ±500ppm/°C - - -
RS 제품 번호 177-504
제조사 부품 번호3224W-1-503E
제조사Bourns
₩6,644.85
Each (In a Pack of 5)
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50 kΩ Surface Mount 12 Top Adjust 0.25W 3224 J-Hook 4.8mm ±10% - ±100ppm/°C - - -
RS 제품 번호 522-0287
제조사 부품 번호3299W-1-102LF
제조사Bourns
₩4,631.40
Each
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1 kΩ Through Hole 25 Top Adjust 0.5W 3299 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 154-2224
제조사 부품 번호M64X202KB40
제조사Vishay
₩2,622.60
Each
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2 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Side Adjust 1/2W 64X Pin 11mm ±10% 5mm - 9.8mm 11 x 5 x 9.8mm -
RS 제품 번호 167-3388
제조사 부품 번호3299W-1-103LF
제조사Bourns
₩3,315.45
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10 kΩ Through Hole 25 Top Adjust 0.5W 3299 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 521-9805
제조사 부품 번호3296W-1-503LF
제조사Bourns
₩3,155.80
Each
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50 kΩ Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 161-7073
제조사 부품 번호3299W-1-501LF
제조사Bourns
₩3,315.45
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500 Ω Through Hole 25 Top Adjust 0.5W 3299 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 169-3090
제조사 부품 번호M64X202KB40
제조사Vishay
₩1,976.25
Each (In a Box of 200)
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2 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Side Adjust 0.5W 64X Pin 11mm ±10% - - - - -
RS 제품 번호 172-4532
제조사 부품 번호EVM1DSX30B15
제조사Panasonic
₩494.45
Each (On a Reel of 1000)
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- Surface Mount 1 Top Adjust 0.2W EVM1D Solder Pad 3.8mm ±25% - ±250ppm/°C - - -
RS 제품 번호 166-9612
제조사 부품 번호SV01A103AEA01R00
제조사Murata
₩1,243.10
Each (On a Reel of 1000)
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10 kΩ Surface Mount - Top Adjust - SV01 Gull Wing 11mm ±30% - ±500ppm/°C - - -
RS 제품 번호 474-6980
제조사 부품 번호CT-6EP 5k Ohm
₩1,435.30
Each (In a Pack of 5)
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5 kΩ Through Hole 1 Top Adjust 0.5W CT-6 Pin 7mm ±10% - ±100ppm/°C - - -