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. 832-302
Mfr. Part No.TZC3Z060A110R00
BrandMurata
$1.904
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 2 → 6pF 6pF
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. 832-374
Mfr. Part No.TZB4Z030AB10R00
BrandMurata
$2.266
Each (In a Pack of 5)
units
TZB4 100V dc - B4 Surface Mount 0 → +50% 4.5 x 4 x 3mm - - 4mm 3mm 4.5mm 1.4 → 3pF 3pF
RS Stock No. 185-7340
Mfr. Part No.LXRW0YV900-053
BrandMurata
$1.00
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. 832-295
Mfr. Part No.TZC3Z030A110R00
BrandMurata
$1.904
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. 721-5344
Mfr. Part No.TZB4Z100AA10R00
BrandMurata
$1.772
Each (In a Pack of 5)
units
TZB4 100V dc - B4 Surface Mount 0 → +50% 4.5 x 4 x 3mm - - 4mm 3mm 4.5mm 3 → 10pF 10pF
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Murata offers many types of capacitors as Ceramic, Polymer Aluminum Electrolytic, Trimmer , Supercapacitor (EDLC), Single Layer Microchip, Variable.
Ceramic trimmer capacitors suitable for reflow soldering processes. ...
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The RS PRO through-hole mount ceramic trimmer capacitor ...
Description:
The RS PRO through-hole mount ceramic trimmer capacitor is a new age device. It comes with a voltage rating of 100V and capacitive range between 10pF and 50pF. • Lead pitch is 5.3mm• Operating temperature ranges between -25°C to 85°C. ...