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. 381-419
Mfr. Part No.BFC280908003
BrandVishay
R 212.67
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. 169-2698
Mfr. Part No.TZB4P300AA10B00
BrandMurata
R 6.776
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 6.5 → 30pF 30pF
RS stock no. 832-419
Mfr. Part No.TZB4P300AA10B00
BrandMurata
R 21.164
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 6.5 → 30pF 30pF
RS stock no. 832-396
Mfr. Part No.TZB4Z100AB10R00
BrandMurata
R 17.654
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. 832-352
Mfr. Part No.TZV2Z100A110R00
BrandMurata
R 21.176
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. 380-236
Mfr. Part No.BFC280905217
BrandVishay
R 115.632
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. 169-2696
Mfr. Part No.TZB4Z100AB10R00
BrandMurata
R 8.183
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. 169-2692
Mfr. Part No.TZV2Z100A110R00
BrandMurata
R 9,687.56
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. 169-2690
Mfr. Part No.TZC3Z060A110R00
BrandMurata
R 6,078.96
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 2 → 6pF 6pF
RS stock no. 169-2691
Mfr. Part No.TZC3P200A110R00
BrandMurata
R 6,078.96
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. 721-5350
Mfr. Part No.TZC3P300A110R00
BrandMurata
R 16.754
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. 832-302
Mfr. Part No.TZC3Z060A110R00
BrandMurata
R 6.66
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. 629-0439
Mfr. Part No.TZC3R100A110B00
BrandMurata
R 7.382
Each (In a Pack of 100)
units
- - - - - - - - - - - - - -
RS stock no. 169-3923
Mfr. Part No.TZB4R500AA10R00
BrandMurata
R 12.188
Each (On a Reel of 500)
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. 721-5329
Mfr. Part No.TZB4R500AA10R00
BrandMurata
R 32.684
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. 832-324
Mfr. Part No.TZC3P200A110R00
BrandMurata
R 15.36
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. 721-5347
Mfr. Part No.TZB4Z100BB10R00
BrandMurata
R 21.05
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. 185-7343
Mfr. Part No.LXRW19V600-055
BrandMurata
R 6.956
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
New
RS stock no. 185-7350
Mfr. Part No.LXRW19V201-058
BrandMurata
R 9.40
Each (On a Reel of 5000)
units
LXRW 5.3V dc - - Surface Mount - 1.3 x 0.9 x 0.4mm - - 0.9mm 0.4mm 1.3mm 100 → 200pF 200pF
New
RS stock no. 185-7340
Mfr. Part No.LXRW0YV900-053
BrandMurata
R 7.52
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