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 172-4461
製造零件編號EVM2NSX80B13
BrandPanasonic
TWD10.80
個 (在毎卷:3000)
單位
- Surface Mount 1 Top Adjust 0.15W EVM2N Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS庫存編號 729-9608
製造零件編號EVM2NSX80B13
BrandPanasonic
TWD11.80
/個 (每包:5個)
單位
1 kΩ Surface Mount 1 Top Adjust 0.15W EVM2N Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS庫存編號 106-8196
製造零件編號EVM2NSX80B52
BrandPanasonic
TWD5.70
個 (在毎卷:3000)
單位
500 Ω Surface Mount 1 Top Adjust 0.15W EVM2N Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS庫存編號 106-8187
製造零件編號EVM2WSX80B13
BrandPanasonic
TWD6.60
個 (在毎卷:3000)
單位
1 kΩ Surface Mount 1 Top Adjust 0.15W EVM2W Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS庫存編號 729-9651
製造零件編號EVM2WSX80B13
BrandPanasonic
TWD13.60
/個 (每包:5個)
單位
1 kΩ Surface Mount 1 Top Adjust 0.15W EVM2W Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS庫存編號 106-7950
製造零件編號EVM3YSX50B55
BrandPanasonic
TWD4.40
個 (在毎卷:2000)
單位
500 kΩ Surface Mount 1 Top Adjust 0.15W EVM3Y Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS庫存編號 172-4469
製造零件編號EVM2WSX80B14
BrandPanasonic
TWD8.40
個 (在毎卷:3000)
單位
- Surface Mount 1 Top Adjust 0.15W EVM2W Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS庫存編號 729-9604
製造零件編號EVM2NSX80B52
BrandPanasonic
TWD11.80
/個 (每包:5個)
單位
500 Ω Surface Mount 1 Top Adjust 0.15W EVM2N Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS庫存編號 729-9667
製造零件編號EVM2WSX80B14
BrandPanasonic
TWD15.80
/個 (每包:5個)
單位
10 kΩ Surface Mount 1 Top Adjust 0.15W EVM2W Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS庫存編號 731-2896
製造零件編號EVM3YSX50B55
BrandPanasonic
TWD18.20
/個 (每包:5個)
單位
500 kΩ Surface Mount 1 Top Adjust 0.15W EVM3Y Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS庫存編號 729-9654
製造零件編號EVM2WSX80B23
BrandPanasonic
TWD9.20
/個 (每包:5個)
單位
2 kΩ Surface Mount 1 Top Adjust 0.15W EVM2W Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS庫存編號 731-2877
製造零件編號EVM3YSX50B13
BrandPanasonic
TWD11.00
/個 (每包:5個)
單位
1 kΩ Surface Mount 1 Top Adjust 0.15W EVM3Y Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS庫存編號 729-9626
製造零件編號EVM2NSX80B54
BrandPanasonic
TWD21.40
/個 (每包:5個)
單位
50 kΩ Surface Mount 1 Top Adjust 0.15W EVM2N Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS庫存編號 172-4462
製造零件編號EVM2NSX80B54
BrandPanasonic
TWD6.90
個 (在毎卷:3000)
單位
- Surface Mount 1 Top Adjust 0.15W EVM2N Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS庫存編號 172-4104
製造零件編號EVM2WSX80B23
BrandPanasonic
TWD9.20
個 (在毎卷:3000)
單位
- Surface Mount 1 Top Adjust 0.15W EVM2W Solder Pad 2.2mm ±25% - ±250ppm/°C - - -
RS庫存編號 106-8523
製造零件編號EVM3YSX50B13
BrandPanasonic
TWD5.50
個 (在毎卷:2000)
單位
1 kΩ Surface Mount 1 Top Adjust 0.15W EVM3Y Solder Pad 3.1mm ±25% - ±250ppm/°C - - -
RS庫存編號 172-4532
製造零件編號EVM1DSX30B15
BrandPanasonic
TWD12.30
個 (在毎卷:1000)
單位
- Surface Mount 1 Top Adjust 0.2W EVM1D Solder Pad 3.8mm ±25% - ±250ppm/°C - - -
RS庫存編號 726-3845
製造零件編號EVMAASA00B14
BrandPanasonic
TWD13.20
/個 (每包:5個)
單位
10 kΩ Through Hole 1 Top Adjust 0.3W EVMAA Pin 7.8mm ±25% - ±200ppm/°C - - -
RS庫存編號 726-3867
製造零件編號EVMAASA00B16
BrandPanasonic
TWD15.40
/個 (每包:5個)
單位
1 MΩ Through Hole 1 Top Adjust 0.3W EVMAA Pin 7.8mm ±25% - ±200ppm/°C - - -
RS庫存編號 172-4467
製造零件編號EVM3WSX80B25
BrandPanasonic
TWD6.20
個 (在毎卷:3000)
單位
- Surface Mount 1 Top Adjust 0.15W EVM3W Solder Pad 3.1mm ±25% - ±250ppm/°C - - -