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. 832-431
Mfr. Part No.TZB4Z250AB10R00
BrandMurata
MYR9.168
Each (In a Pack of 5)
units
TZB4 50V dc - B4 Surface Mount 0 → +100% 4.5 x 4 x 3mm - - 4mm 3mm 4.5mm 4 → 25pF 25pF
RS Stock No. 381-419
Mfr. Part No.BFC280908003
BrandVishay
MYR49.018
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. 378-906
Mfr. Part No.BFC280907015
BrandVishay
MYR395.90
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. 173-1606
Mfr. Part No.BFC280907015
BrandVishay
MYR281.127
Each (In a Box of 350)
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. 380-236
Mfr. Part No.BFC280905217
BrandVishay
MYR28.662
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. 721-5350
Mfr. Part No.TZC3P300A110R00
BrandMurata
MYR2.852
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 6.5 → 30pF 30pF
RS Stock No. 721-5347
Mfr. Part No.TZB4Z100BB10R00
BrandMurata
MYR3.454
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
RS Stock No. 721-5338
Mfr. Part No.TZB4R500BB10R00
BrandMurata
MYR10.704
Each (In a Pack of 5)
units
TZB4 50V dc - B4 Surface Mount 0 → +100% 4.5 x 4 x 3mm - - 4mm 3mm 4.5mm 7 → 50pF 50pF
RS Stock No. 175-3527
BrandRS PRO
MYR0.822
Each (In a Bag of 500)
units
- 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 6 → 30pF 30
New
RS Stock No. 185-7583
Mfr. Part No.LXRW19V201-058
BrandMurata
MYR7.68
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. 901-5323
Mfr. Part No.TZR1R080A001B00
BrandMurata
MYR22.14
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
RS Stock No. 175-3546
BrandRS PRO
MYR1.644
Each (In a Pack of 25)
units
- 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 6 → 30pF 30
New
RS Stock No. 185-7578
Mfr. Part No.LXRW0YV330-056
BrandMurata
MYR4.48
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. 832-302
Mfr. Part No.TZC3Z060A110R00
BrandMurata
MYR4.922
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. 832-396
Mfr. Part No.TZB4Z100AB10R00
BrandMurata
MYR2.494
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
New
RS Stock No. 185-7569
Mfr. Part No.LXRW0YV900-053
BrandMurata
MYR4.16
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 45 → 90pF 90pF
RS Stock No. 106-2893
Mfr. Part No.TZB4R500BA10R00
BrandMurata
MYR4.894
Each (In a Pack of 5)
units
TZB4 50V dc Film - Surface Mount ±0.5% 4.5 x 4 x 3mm - - 4mm 3mm 4.5mm 7 → 50pF 50pF
New
RS Stock No. 185-7572
Mfr. Part No.LXRW0YV600-054
BrandMurata
MYR3.84
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. 170-6387
Mfr. Part No.TZR1R080A001B00
BrandMurata
MYR15.451
Each (On a Reel of 500)
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
RS Stock No. 169-2691
Mfr. Part No.TZC3P200A110R00
BrandMurata
MYR2,089.78
1 Reel of 1000
Reel(s)
TZC3 100V dc - C3 Surface Mount 0 → +50% 4.5 x 3.2 x 1.6mm - - 3.2mm 1.6mm 4.5mm 5 → 20pF 20pF
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