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. 185-7578
Mfr. Part No.LXRW0YV330-056
BrandMurata
$1.75
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 16.5 → 33pF 33pF
RS Stock No. 832-368
Mfr. Part No.TZV2R200A110R00
BrandMurata
$2.182
Each (In a Pack of 5)
units
TZV2 25V dc - V2 Surface Mount 0 → +100% 3.2 x 2.3 x 1.45mm - - 2.3mm 1.45mm 3.2mm 4.5 → 20pF 20pF
RS Stock No. 185-7341
Mfr. Part No.LXRW0YV600-054
BrandMurata
$0.80
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. 832-352
Mfr. Part No.TZV2Z100A110R00
BrandMurata
$1.306
Each (In a Pack of 5)
units
TZV2 25V dc - V2 Surface Mount 0 → +100% 3.2 x 2.3 x 1.45mm - - 2.3mm 1.45mm 3.2mm 3.0 → 10pF 10pF
RS Stock No. 832-295
Mfr. Part No.TZC3Z030A110R00
BrandMurata
$0.58
Each (In a Pack of 5)
units
TZC3 100V dc - C3 Surface Mount 0 → +50% 4.5 x 3.2 x 1.6mm - - 3.2mm 1.6mm 4.5mm 1.4 → 3pF 3pF
RS Stock No. 169-2690
Mfr. Part No.TZC3Z060A110R00
BrandMurata
$0.515
Each (On a Reel of 1000)
units
TZC3 100V dc - C3 Surface Mount 0 → +50% 4.5 x 3.2 x 1.6mm - - 3.2mm 1.6mm 4.5mm 2 → 6pF 6pF
RS Stock No. 901-5323
Mfr. Part No.TZR1R080A001B00
BrandMurata
$7.81
Each
units
TZR1 25V dc - - Surface Mount 0 → +100% 1.7 x 1.5 x 0.9mm - - 1.5mm 0.9mm 1.7mm 3 → 8pF 8pF
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