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 youll 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 521-9647
제조사 부품 번호3296W-1-103LF
제조사Bourns
₩3,730.85
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10 kΩ Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 167-3377
제조사 부품 번호3296W-1-103LF
제조사Bourns
₩2,363.75
Each (In a Tube of 50)
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10 kΩ Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 169-3080
제조사 부품 번호M64W103KB40
제조사Vishay
₩1,990.20
Each (In a Box of 200)
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10 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 0.5W 64W Pin 9.7mm ±10% - ±100ppm/°C - - -
RS 제품 번호 154-2050
제조사 부품 번호M64W103KB40
제조사Vishay
₩3,146.50
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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 제품 번호 787-0544
제조사 부품 번호3362P-1-223LF
제조사Bourns
₩1,260.15
Each
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22 kΩ Through Hole 1 Top Adjust 0.5W 3362 Pin 6.6mm ±10% - ±100ppm/°C - - -
RS 제품 번호 850-9625
제조사 부품 번호T73XX103KT20
제조사Vishay
₩1,170.25
Each
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10 kΩ Through Hole 1 Side Adjust 0.5W T73 PC Pin 6.6mm ±10% - ±100ppm/°C - - -
RS 제품 번호 522-1000
제조사 부품 번호3362P-1-504LF
제조사Bourns
₩1,337.65
Each
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500 kΩ Through Hole 1 Top Adjust 0.5W 3362 Pin 6.6mm ±10% - ±100ppm/°C - - -
RS 제품 번호 167-3265
제조사 부품 번호3362P-1-504LF
제조사Bourns
₩1,030.75
Each (In a Tube of 50)
수량
500 kΩ Through Hole 1 Top Adjust 0.5W 3362 Pin 6.6mm ±10% - ±100ppm/°C - - -
RS 제품 번호 691-6951
제조사 부품 번호3312J-1-202E
제조사Bourns
₩2,635.00
Each
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2 kΩ Surface Mount 1 Top Adjust 0.1W 3312 J-Hook 2.5mm ±20% - ±100ppm/°C - - -
RS 제품 번호 521-9798
제조사 부품 번호3296W-1-502LF
제조사Bourns
₩3,730.85
Each
수량
5 kΩ Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 167-3491
제조사 부품 번호3296W-1-502LF
제조사Bourns
₩2,125.05
Each (In a Tube of 50)
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5 kΩ Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 161-6955
제조사 부품 번호3362P-1-223LF
제조사Bourns
₩627.75
Each (In a Tube of 50)
수량
22 kΩ Through Hole 1 Top Adjust 0.5W 3362 Pin 6.6mm ±10% - ±100ppm/°C - - -
RS 제품 번호 167-4457
제조사 부품 번호3312J-1-202E
제조사Bourns
₩1,807.30
Each (On a Reel of 500)
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2 kΩ Surface Mount 1 Top Adjust 0.1W 3312 J-Hook 2.5mm ±20% - ±100ppm/°C - - -
RS 제품 번호 169-3078
제조사 부품 번호M64W502KB40
제조사Vishay
₩1,990.20
Each (In a Box of 200)
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5 kΩ Through Hole 19 (Electrical), 22 (Mechanical) Top Adjust 0.5W 64W Pin 9.7mm ±10% - - - - -
RS 제품 번호 167-3497
제조사 부품 번호3296W-1-101LF
제조사Bourns
₩2,125.05
Each (In a Tube of 50)
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100 Ω Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 162-2466
제조사 부품 번호T7YB102MT20
제조사Vishay
₩824.60
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1 kΩ Through Hole 1 Top Adjust 0.5W T7 Pin - ±10% - ±100ppm/°C - - -
RS 제품 번호 850-9643
제조사 부품 번호T73YE103KT20
제조사Vishay
₩1,376.40
Each
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10 kΩ Through Hole 1 Top Adjust 0.5W T73 PC Pin 6.6mm ±10% - ±100ppm/°C - - -
RS 제품 번호 167-3430
제조사 부품 번호3329H-1-102LF
제조사Bourns
₩1,838.30
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1 kΩ Through Hole 1 Top Adjust 0.5W 3329 Pin - ±10% - ±100ppm/°C - - -
RS 제품 번호 154-2016
제조사 부품 번호M64W501KB40
제조사Vishay
₩3,024.05
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500 Ω 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 제품 번호 851-7483
제조사 부품 번호RJ24FW103
제조사Bourns
₩7,288.10
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10 kΩ Panel Mount 25 - 0.5W RJ24 PC Pin 11.55mm ±10% - - - - -