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 743-2372
제조사 부품 번호3314J-1-105E
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₩2,759.00
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1 MΩ Surface Mount 1 Top Adjust 0.25W 3314 J-Hook 4.5mm ±20% - ±100ppm/°C - - -
RS 제품 번호 167-3240
제조사 부품 번호3006P-1-203LF
제조사Bourns
₩2,174.65
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20 kΩ Through Hole 15 Side Adjust 0.75W 3006 Pin 20.57mm ±10% - ±100ppm/°C - - -
RS 제품 번호 521-9091
제조사 부품 번호3006P-1-203LF
제조사Bourns
₩2,759.00
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20 kΩ Through Hole 15 Side Adjust 0.75W 3006 Pin 20.57mm ±10% - ±100ppm/°C - - -
RS 제품 번호 167-3414
제조사 부품 번호3296Y-1-202LF
제조사Bourns
₩2,431.95
Each (In a Tube of 50)
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2 kΩ Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 167-3361
제조사 부품 번호3266W-1-102LF
제조사Bourns
₩4,057.90
Each (In a Tube of 50)
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1 kΩ Through Hole 12 Top Adjust 0.25W 3266 Pin 6.71mm ±10% - ±100ppm/°C - - -
RS 제품 번호 743-2426
제조사 부품 번호3362W-1-101LF
제조사Bourns
₩1,393.45
Each
수량
100 Ω Through Hole 1 Side Adjust 0.5W 3362 Pin 6.6mm ±10% - ±100ppm/°C - - -
RS 제품 번호 167-3251
제조사 부품 번호3362P-1-101LF
제조사Bourns
₩1,033.85
Each (In a Tube of 50)
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100 Ω Through Hole 1 Top Adjust 0.5W 3362 Pin 6.6mm ±10% - ±100ppm/°C - - -
RS 제품 번호 522-0136
제조사 부품 번호3296Y-1-202LF
제조사Bourns
₩2,910.90
Each
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2 kΩ Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 769-2176
제조사 부품 번호PV36W202C01B00
제조사Bourns
₩1,990.20
Each
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2 kΩ Through Hole 25 Top Adjust 0.5W PV36 Solder Pin 9.6mm ±10% - ±100ppm/°C - - -
RS 제품 번호 850-9634
제조사 부품 번호T73XX104KT20
제조사Vishay
₩575.05
Each (In a Pack of 1000)
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100 kΩ Through Hole 1 Side Adjust 0.5W T73 PC Pin 6.6mm ±10% - ±100ppm/°C - - -
RS 제품 번호 521-9192
제조사 부품 번호3266W-1-103LF
제조사Bourns
₩5,683.85
Each
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10 kΩ Through Hole 12 Top Adjust 0.25W 3266 Pin 6.71mm ±10% - ±100ppm/°C - - -
RS 제품 번호 521-9186
제조사 부품 번호3266W-1-102LF
제조사Bourns
₩5,683.85
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1 kΩ Through Hole 12 Top Adjust 0.25W 3266 Pin 6.71mm ±10% - ±100ppm/°C - - -
RS 제품 번호 788-5025
제조사 부품 번호T93XA102KT20
제조사Vishay
₩2,431.95
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1 kΩ Through Hole 21 Side Adjust 0.5W T93 Pin 9.7mm ±10% - ±100ppm/°C - - -
RS 제품 번호 521-9164
제조사 부품 번호3266W-1-101LF
제조사Bourns
₩5,683.85
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100 Ω Through Hole 12 Top Adjust 0.25W 3266 Pin 6.71mm ±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 167-3421
제조사 부품 번호3299W-1-203LF
제조사Bourns
₩3,414.65
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20 kΩ Through Hole 25 Top Adjust 0.5W 3299 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 521-9653
제조사 부품 번호3296W-1-104LF
제조사Bourns
₩3,921.50
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100 kΩ Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 522-0350
제조사 부품 번호3299W-1-203LF
제조사Bourns
₩4,631.40
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20 kΩ Through Hole 25 Top Adjust 0.5W 3299 Pin 9.53mm ±10% - ±100ppm/°C - - -
RS 제품 번호 168-0257
제조사 부품 번호409VA103M
제조사TE Connectivity
₩965.65
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10 kΩ Through Hole 1 Side Adjust 0.5W 409 Pin 9mm ±20% - ±250ppm/°C - - -
RS 제품 번호 521-9782
제조사 부품 번호3296W-1-501LF
제조사Bourns
₩3,292.20
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500 Ω Through Hole 25 Top Adjust 0.5W 3296 Pin 9.53mm ±10% - ±100ppm/°C - - -