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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Description Price Maximum Resistance Mounting Type Number of Turns Orientation Power Rating Series Termination Style Length Tolerance Depth Temperature Coefficient Height Dimensions Maximum Voltage Rating
RS庫存編號 167-9513
製造零件編號M70Y502KB25
BrandVishay
TWD411.30
個 (以毎盒:50)
單位
5 kΩ Through Hole 20 Side Adjust 1W 70Y Pin 33.53mm ±10% - ±100ppm/°C - - -
RS庫存編號 186-047
製造零件編號M70Y502KB25
BrandVishay
TWD569.00
單位
5 kΩ Through Hole 20 Side Adjust 1W 70Y Pin 33.53mm ±10% - ±100ppm/°C - - -
RS庫存編號 186-053
製造零件編號M70Y103KB25
BrandVishay
TWD569.00
單位
10 kΩ Through Hole 20 Side Adjust 1W 70Y Pin 33.53mm ±10% - ±100ppm/°C - - -
RS庫存編號 169-3025
製造零件編號M43P203KB40
BrandVishay
TWD72.40
個 (以毎盒:200)
單位
20 kΩ Through Hole 20 Side Adjust 0.5W 43P Pin 20.57mm ±10% - ±100ppm/°C - - -
RS庫存編號 850-9678
製造零件編號T73YP504KT20
BrandVishay
TWD15.90
/個 (每包:1000個)
單位
500 kΩ Through Hole 1 Top Adjust 0.18W T73 PC Pin 6.6mm ±10% - ±100ppm/°C - - -
RS庫存編號 162-243
製造零件編號M43P203KB40
BrandVishay
TWD91.00
單位
20 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庫存編號 167-9514
製造零件編號M70Y103KB25
BrandVishay
TWD411.30
個 (以毎盒:50)
單位
10 kΩ Through Hole 20 Side Adjust 1W 70Y Pin 33.53mm ±10% - ±100ppm/°C - - -
RS庫存編號 154-2757
製造零件編號M43P205KB40
BrandVishay
TWD39.00
單位
2 MΩ 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庫存編號 169-3111
製造零件編號M43P205KB40
BrandVishay
TWD45.80
個 (以毎盒:200)
單位
2 MΩ Through Hole 20 Side Adjust 0.5W 43P Pin 20.57mm ±10% - ±100ppm/°C - - -
RS庫存編號 850-9625
製造零件編號T73XX103KT20
BrandVishay
TWD14.00
單位
10 kΩ Through Hole 1 Side Adjust 0.5W T73 PC Pin 6.6mm ±10% - ±100ppm/°C - - -
RS庫存編號 850-9372
製造零件編號TS63Y504KR10
BrandVishay
TWD71.40
/個 (每包:500個)
單位
500 kΩ Surface Mount 14 Top Adjust 0.13W TS63 Solder 6.85mm ±10% - ±100ppm/°C - - -
RS庫存編號 186-031
製造零件編號M70Y202KB25
BrandVishay
TWD534.00
單位
2 kΩ Through Hole 20 Side Adjust 0.5W 70Y Pin 33.53mm ±10% - ±100ppm/°C - - -
RS庫存編號 169-3023
製造零件編號M43P502KB40
BrandVishay
TWD57.50
個 (以毎盒:200)
單位
5 kΩ Through Hole 20 Side Adjust 0.5W 43P Pin 20.57mm ±10% - ±100ppm/°C - - -
RS庫存編號 162-221
製造零件編號M43P502KB40
BrandVishay
TWD54.00
單位
5 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庫存編號 162-2386
製造零件編號M70Y202KB25
BrandVishay
TWD382.00
個 (以毎盒:50)
單位
2 kΩ Through Hole 20 Side Adjust 0.5W 70Y Pin 33.53mm ±10% - ±100ppm/°C - - -
RS庫存編號 167-9432
製造零件編號TS53YL102MR10
BrandVishay
TWD30.40
個 (在毎卷:500)
單位
1 kΩ Surface Mount 1 Top Adjust 0.25W TS53 J-Hook 5mm ±20% - ±100ppm/°C - - -
RS庫存編號 850-9653
製造零件編號T73YP103KT20
BrandVishay
TWD16.00
單位
10 kΩ Through Hole 1 Top Adjust 0.5W T73 PC Pin 6.6mm ±10% - ±100ppm/°C - - -
RS庫存編號 162-2381
製造零件編號M70Y203KB25
BrandVishay
TWD404.90
個 (以毎盒:50)
單位
20 kΩ Through Hole 20 Side Adjust 1W 70Y Pin 33.53mm ±10% - ±100ppm/°C - - -
RS庫存編號 850-9643
製造零件編號T73YE103KT20
BrandVishay
TWD33.00
單位
10 kΩ Through Hole 1 Top Adjust 0.5W T73 PC Pin 6.6mm ±10% - ±100ppm/°C - - -
RS庫存編號 186-069
製造零件編號M70Y203KB25
BrandVishay
TWD569.00
單位
20 kΩ Through Hole 20 Side Adjust 1W 70Y Pin 33.53mm ±10% - ±100ppm/°C - - -