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. 629-0439
Mfr. Part No.TZC3R100A110B00
BrandMurata
$0.761
Each (In a Pack of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 832-318
Mfr. Part No.TZC3R100A110R00
BrandMurata
$1.46
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 3 → 10pF 10pF
RS Stock No. 381-419
Mfr. Part No.BFC280908003
BrandVishay
$21.436
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. 169-2692
Mfr. Part No.TZV2Z100A110R00
BrandMurata
$1,622.96
1 Reel of 2000
Reel(s)
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. 832-352
Mfr. Part No.TZV2Z100A110R00
BrandMurata
$1.284
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. 721-5350
Mfr. Part No.TZC3P300A110R00
BrandMurata
$0.94
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. 169-2696
Mfr. Part No.TZB4Z100AB10R00
BrandMurata
$0.851
Each (On a Reel of 500)
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. 173-1606
Mfr. Part No.BFC280907015
BrandVishay
$92.368
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. 378-906
Mfr. Part No.BFC280907015
BrandVishay
$52.904
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. 790-2786
Mfr. Part No.TZC3P200A110B00
BrandMurata
$1.008
Each (In a Pack of 5)
units
TZC3 100V dc N1200 - Surface Mount 0 → +50% 4.5 x 3.2 x 1.6mm - - 3.2mm 1.6mm 4.5mm 5 → 20pF 20pF
RS Stock No. 790-2795
Mfr. Part No.TZC3P300A110B00
BrandMurata
$1.26
Each (In a Pack of 5)
units
TZC3 100V dc N1200 - 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. 832-425
Mfr. Part No.TZB4P400AB10R00
BrandMurata
$1.618
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 8.5 → 40pF 40pF
RS Stock No. 832-447
Mfr. Part No.TZB4R500AB10R00
BrandMurata
$1.82
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. 169-3927
Mfr. Part No.TZB4Z100AA10R00
BrandMurata
$0.725
Each (On a Reel of 500)
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. 832-324
Mfr. Part No.TZC3P200A110R00
BrandMurata
$1.988
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 5 → 20pF 20pF
RS Stock No. 169-2691
Mfr. Part No.TZC3P200A110R00
BrandMurata
$632.06
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
RS Stock No. 832-396
Mfr. Part No.TZB4Z100AB10R00
BrandMurata
$0.668
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. 380-236
Mfr. Part No.BFC280905217
BrandVishay
$9.622
Each (In a Pack of 5)
units
BFC2 300V dc PTFE 217 Through Hole - 7.4 x 6.7 x 9mm - - 6.7mm 9mm 7.4mm 2 → 18pF 18pF
RS Stock No. 721-5344
Mfr. Part No.TZB4Z100AA10R00
BrandMurata
$1.476
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. 169-6380
Mfr. Part No.TZC3P300A110B00
BrandMurata
$0.623
Each (On a Reel of 500)
units
TZC3 100V dc N1200 - Surface Mount 0 → +50% 4.5 x 3.2 x 1.6mm - - 3.2mm 1.6mm 4.5mm 6.5 → 30pF 30pF
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