Variable Trimmer Capacitors

Variable trimmer capacitors are types of capacitors(devices which store electrical charge in circuits) where the capacitor capacitance (its ability to store 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.

How do variable trimmer capacitors work?

Variable 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, variable 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 are variable trimmer capacitor used for?

Common applications include oscillators, tuners, crystal oscillators and filters. Variable trimmer capacitors can also be found in communication equipment such as mobile radios and aerospace transmitters.


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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. 185-7572
Mfr. Part No.LXRW0YV600-054
BrandMurata
SGD1.112
Each (In a Pack of 10)
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. 380-236
Mfr. Part No.BFC280905217
BrandVishay
SGD13.428
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
SGD0.723
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. 185-7583
Mfr. Part No.LXRW19V201-058
BrandMurata
SGD2.134
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
SGD0.552
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. 185-7348
Mfr. Part No.LXRW0YV330-056
BrandMurata
SGD0.513
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 16.5 → 33pF 33pF
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