Trimmer Resistors

Trimmer resistors are a type of adjustable electrical component that are usually installed directly onto printed circuit boards (PCBs), set to a given value using a trimmer resistor adjustment tool, and then fixed in that position for the majority of their lifespan. They tend not to be accessible by general users.

What are trimmer resistors used for?

Trimmer resistors, like other types of trimmers, are often used in precision circuitry as found in audiovisual components. The position they are set to is designed to allow the equipment to function at its best, and will only need to be changed if the equipment is at some point recalibrated.

Types of trimmer resistors

There are a number of characteristics that can differ between trimmer resistors. These include mounting type, number of turns, power rating, range of operation, temperature and voltage. They have varying maximum resistances, and also come in different sizes depending on their intended use.


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Description Price Maximum Resistance Number of Turns Mounting Type Power Rating Series Orientation Termination Style Length Depth Height Dimensions Shaft Diameter Diameter Tolerance
RS Stock No. 521-9647
Mfr. Part No.3296W-1-103LF
BrandBourns
TWD93
Each
units
10 kΩ 25 Through Hole 1/2W 3296W Top Adjust Pin 9.53mm 4.83mm 11.55mm 9.53 x 4.83 x 11.55mm 2.19 mm - ±10%
RS Stock No. 167-3377
Mfr. Part No.3296W-1-103LF
BrandBourns
TWD67
Each (In a Tube of 50)
units
10 kΩ 25 Through Hole 1/2W 3296W Top Adjust Pin 9.53mm 4.83mm 11.55mm 9.53 x 4.83 x 11.55mm 2.19 mm - ±10%
RS Stock No. 106-8192
Mfr. Part No.EVM2NSX80B14
BrandPanasonic
TWD17,400
1 Reel of 3000
Reel(s)
10 kΩ 1 Surface Mount 0.15W EVM2N Top Adjust Solder Pad 2.2mm 2.81mm 0.81mm 2.2 x 2.81 x 0.81mm - - ±25%
RS Stock No. 729-9614
Mfr. Part No.EVM2NSX80B14
BrandPanasonic
TWD12
Each (In a Pack of 5)
units
10 kΩ 1 Surface Mount 0.15W EVM2N Top Adjust Solder Pad 2.2mm 2.81mm 0.81mm 2.2 x 2.81 x 0.81mm - - ±25%
RS Stock No. 691-7409
Mfr. Part No.3314J-1-103E
BrandBourns
TWD43
Each (In a Pack of 5)
units
10 kΩ 1 Surface Mount 0.25W 3314J Top Adjust J-Hook 4.5mm 4.5mm 2.55mm 4.5 x 4.5 x 2.55mm - - ±20%
RS Stock No. 167-4674
Mfr. Part No.3314J-1-103E
BrandBourns
TWD40
Each (On a Reel of 500)
units
10 kΩ 1 Surface Mount 0.25W 3314J Top Adjust J-Hook 4.5mm 4.5mm 2.55mm 4.5 x 4.5 x 2.55mm - - ±20%
RS Stock No. 474-9024
Mfr. Part No.RJ-13P 20k?
TWD116
Each
units
20 kΩ 1 Through Hole 0.75W - - Pin - - 6.3mm 12.4 (Dia.) x 6.3mm - 12.4mm ±10%
RS Stock No. 522-2485
Mfr. Part No.3386G-1-103LF
BrandBourns
TWD26
Each
units
10 kΩ 1 Through Hole 1/2W 3386G Top Adjust Pin 9.53mm 9.53mm 4.83mm 9.53 x 9.53 x 4.83mm 3.05 mm - ±10%
RS Stock No. 167-3436
Mfr. Part No.3386G-1-103LF
BrandBourns
TWD32
Each (In a Tube of 50)
units
10 kΩ 1 Through Hole 1/2W 3386G Top Adjust Pin 9.53mm 9.53mm 4.83mm 9.53 x 9.53 x 4.83mm 3.05 mm - ±10%
RS Stock No. 522-2479
Mfr. Part No.3386G-1-102LF
BrandBourns
TWD87
Each
units
1 kΩ 1 Through Hole 1/2W 3386G Top Adjust Pin 9.53mm 9.53mm 4.83mm 9.53 x 9.53 x 4.83mm 3.05 mm - ±10%
RS Stock No. 167-3434
Mfr. Part No.3386G-1-102LF
BrandBourns
TWD32
Each (In a Tube of 50)
units
1 kΩ 1 Through Hole 1/2W 3386G Top Adjust Pin 9.53mm 9.53mm 4.83mm 9.53 x 9.53 x 4.83mm 3.05 mm - ±10%
RS Stock No. 167-3498
Mfr. Part No.3296X-1-105LF
BrandBourns
TWD60
Each (In a Tube of 50)
units
1 MΩ 25 Through Hole 1/2W 3296X Side Adjust Pin 11.05mm 4.83mm 10.03mm 11.05 x 4.83 x 10.03mm 2.19 mm - ±10%
RS Stock No. 161-7078
Mfr. Part No.3386G-1-203LF
BrandBourns
TWD17
Each (In a Tube of 50)
units
20 kΩ 1 Through Hole 1/2W 3386G Top Adjust Pin 9.53mm 9.53mm 4.83mm 9.53 x 9.53 x 4.83mm 3.05 mm - ±10%
RS Stock No. 521-9883
Mfr. Part No.3296X-1-105LF
BrandBourns
TWD90
Each
units
1 MΩ 25 Through Hole 1/2W 3296X Side Adjust Pin 11.05mm 4.83mm 10.03mm 11.05 x 4.83 x 10.03mm 2.19 mm - ±10%
RS Stock No. 691-2621
Mfr. Part No.3302X-3-103E
BrandBourns
TWD14
Each (In a Pack of 5)
units
10 kΩ 1 Surface Mount 3/20W 3302 Top Adjust Solder Pad 2.2mm 2.75mm 1.05mm 2.2 x 2.75 x 1.05mm 1.45 mm - ±25%
RS Stock No. 522-2520
Mfr. Part No.3386G-1-203LF
BrandBourns
TWD41
Each
units
20 kΩ 1 Through Hole 1/2W 3386G Top Adjust Pin 9.53mm 9.53mm 4.83mm 9.53 x 9.53 x 4.83mm 3.05 mm - ±10%
RS Stock No. 240-1534
Mfr. Part No.3214W-1-102E
BrandBourns
TWD102
Each (In a Pack of 5)
units
1 kΩ 5 Surface Mount 1/4W 3214W Top Adjust J-Hook 4.8mm 3.9mm 5.3mm 4.8 x 3.9 x 5.3mm 1.5 mm - ±10%
RS Stock No. 167-3528
Mfr. Part No.3224W-1-102E
BrandBourns
TWD112
Each (On a Reel of 250)
units
1 kΩ 12 Surface Mount 0.25W 3224W Top Adjust J-Hook 4.8mm 3.9mm 5.3mm 4.8 x 3.9 x 5.3mm - - ±10%
RS Stock No. 522-2491
Mfr. Part No.3386G-1-104LF
BrandBourns
TWD40
Each
units
100 kΩ 1 Through Hole 1/2W 3386G Top Adjust Pin 9.53mm 9.53mm 4.83mm 9.53 x 9.53 x 4.83mm 3.05 mm - ±10%
RS Stock No. 177-453
Mfr. Part No.3224W-1-102E
BrandBourns
TWD88
Each (In a Pack of 5)
units
1 kΩ 12 Surface Mount 0.25W 3224W Top Adjust J-Hook 4.8mm 3.9mm 5.3mm 4.8 x 3.9 x 5.3mm - - ±10%