Variable Trimmer Capacitors

Variable trimmer capacitors are types of adjustable capacitors(devices that store electrical charge in circuits) where the capacitor capacitance (its ability to store an electrical charge) can be readily adjusted. They're often used in LC circuits (circuits that have an inductor and a capacitor) to set the frequency, for example, to tune a radio.

RS Components offer a range of high-quality ceramic and PTFE dielectric trimmer capacitors from industry-leading brands including Murata, Vishay and of course RS PRO.

How do variable trimmer capacitors work?

Trimmer capacitors are used to initially set oscillator frequency values, rise and fall times and other variables in a circuit. Should the values drift over time, trimmer capacitors allow you to re-calibrate your equipment.

Variable trimmer capacitors are almost always mounted directly on a PCB (printed circuit board) and set by using a small screwdriver. Variable trimmer capacitors are usually cheaper than full-sized variable capacitors.

What is a variable trimmer capacitor used for?

Common applications include oscillators, tuners, crystal oscillators and filters. Trimmer capacitors can also be found in communication equipment such as mobile radios and aerospace transmitters. Trimmer capacitors are available in SMD or through-hole mounting types and come in a range of voltages and capacitive ranges.


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Description Price Series Voltage Dielectric Package/Case Mounting Type Tolerance Dimensions Lead Pitch Lead Diameter Depth Height Length Capacitive Range Maximum Capacitance
RS Stock No. 175-3546
BrandRS PRO
kr 3,966
Each (In a Pack of 25)
Units
CVN 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 6 → 30pF 30pF
RS Stock No. 175-3527
BrandRS PRO
kr 1,827
Each (In a Bag of 500)
Units
CVN 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 6 → 30pF 30pF
RS Stock No. 175-3548
BrandRS PRO
kr 4,283
Each (In a Pack of 25)
Units
CVN 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 10 → 50pF 50pF
RS Stock No. 175-3543
BrandRS PRO
kr 3,435
Each (In a Pack of 25)
Units
CVN 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 2.5 → 7pF 7pF
RS Stock No. 175-3545
BrandRS PRO
kr 3,818
Each (In a Pack of 25)
Units
CVN 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 4.5 → 20pF 20pF
RS Stock No. 175-3544
BrandRS PRO
kr 3,818
Each (In a Pack of 25)
Units
CVN 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 3 → 10pF 10pF
RS Stock No. 175-3524
BrandRS PRO
kr 1,653
Each (In a Bag of 500)
Units
CVN 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 2.5 → 7pF 7pF
RS Stock No. 175-3526
BrandRS PRO
kr 1,826
Each (In a Bag of 500)
Units
CVN 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 4.5 → 20pF 20pF
RS Stock No. 175-3525
BrandRS PRO
kr 1,826
Each (In a Bag of 500)
Units
CVN 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 3 → 10pF 10pF
RS Stock No. 175-3528
BrandRS PRO
kr 2,283
Each (In a Bag of 500)
Units
CVN 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 10 → 50pF 50pF
RS Stock No. 381-419
Mfr. Part No.BFC280908003
BrandVishay
kr 363,126
Each (In a Pack of 5)
Units
BFC2 250V dc PTFE - Through Hole - 10 x 11 x 11mm - - 11mm 11mm 10mm 5.0 → 60pF 60pF
RS Stock No. 185-7583
Mfr. Part No.LXRW19V201-058
BrandMurata
kr 16,068
Each (In a Pack of 5)
Units
LXRW 5.3V dc - - Surface Mount - 1.3 x 0.9 x 0.4mm - - 0.9mm 0.4mm 1.3mm 100 → 200pF 200pF
RS Stock No. 185-7343
Mfr. Part No.LXRW19V600-055
BrandMurata
kr 4,184
Each (On a Reel of 3000)
Units
LXRW 50V ac - - Surface Mount - 1.3 x 0.9 x 0.6mm - - 0.9mm 0.6mm 1.3mm 30 → 60pF 60pF
RS Stock No. 185-7575
Mfr. Part No.LXRW19V600-055
BrandMurata
kr 9,491
Each (In a Pack of 10)
Units
LXRW 50V ac - - Surface Mount - 1.3 x 0.9 x 0.6mm - - 0.9mm 0.6mm 1.3mm 30 → 60pF 60pF
RS Stock No. 378-906
Mfr. Part No.BFC280907015
BrandVishay
kr 518,522
Each (In a Pack of 5)
Units
BFC2 200V dc PTFE 015 Through Hole - 14 x 11.5 x 9.2mm - - 11.5mm 9.2mm 14mm 7 → 100pF 100pF
RS Stock No. 185-7340
Mfr. Part No.LXRW0YV900-053
BrandMurata
kr 2,635
Each (On a Reel of 3000)
Units
LXRW 50V ac - - Surface Mount - 0.6 x 0.6 x 0.3mm - - 0.6mm 0.3mm 0.6mm 45 → 90pF 90pF
RS Stock No. 185-7566
Mfr. Part No.LXRW19V330-050
BrandMurata
kr 2,629
Each (In a Pack of 10)
Units
LXRW 50V ac - - Surface Mount - 1.3 x 0.9 x 0.6mm - - 0.9mm 0.6mm 1.3mm 16.5 → 33pF 33pF
RS Stock No. 380-236
Mfr. Part No.BFC280905217
BrandVishay
kr 118,238
Each (In a Pack of 5)
Units
BFC2 300V dc PTFE 0217 Through Hole - 7.4 x 6.7 x 9mm - - 6.7mm 9mm 7.4mm 2 → 18pF 18pF
RS Stock No. 185-7341
Mfr. Part No.LXRW0YV600-054
BrandMurata
kr 3,692
Each (On a Reel of 10000)
Units
LXRW 50V ac - - Surface Mount - 0.6 x 0.6 x 0.3mm - - 0.6mm 0.3mm 0.6mm 30 → 60pF 60pF
RS Stock No. 185-7350
Mfr. Part No.LXRW19V201-058
BrandMurata
kr 6,033
Each (On a Reel of 5000)
Units
LXRW 5.3V dc - - Surface Mount - 1.3 x 0.9 x 0.4mm - - 0.9mm 0.4mm 1.3mm 100 → 200pF 200pF