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 235.232
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
R 9,687.56
Each (On a Reel of 2000)
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 156.692
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. 832-352
Mfr. Part No.TZV2Z100A110R00
BrandMurata
R 21.11
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. 169-2690
Mfr. Part No.TZC3Z060A110R00
BrandMurata
R 6,078.96
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. 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. 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. 901-5323
Mfr. Part No.TZR1R080A001B00
BrandMurata
R 72.45
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. 185-7341
Mfr. Part No.LXRW0YV600-054
BrandMurata
R 6.065
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. 185-7343
Mfr. Part No.LXRW19V600-055
BrandMurata
R 7.014
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
RS stock no. 175-3544
BrandRS PRO
R 4.566
Each (In a Pack of 25)
units
- 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 3 → 10pF 10pF
RS stock no. 832-295
Mfr. Part No.TZC3Z030A110R00
BrandMurata
R 14.27
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. 378-906
Mfr. Part No.BFC280907015
BrandVishay
R 692.798
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. 175-3543
BrandRS PRO
R 4.563
Each (In a Pack of 25)
units
- 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 2.5 → 7pF 7pF
RS stock no. 185-7348
Mfr. Part No.LXRW0YV330-056
BrandMurata
R 6.065
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 16.5 → 33pF 33pF
RS stock no. 173-1606
Mfr. Part No.BFC280907015
BrandVishay
R 560.307
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. 185-7350
Mfr. Part No.LXRW19V201-058
BrandMurata
R 9.477
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
RS stock no. 106-2893
Mfr. Part No.TZB4R500BA10R00
BrandMurata
R 28.298
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
RS stock no. 170-6387
Mfr. Part No.TZR1R080A001B00
BrandMurata
R 28.657
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. 106-2894
Mfr. Part No.TZB4Z250BA10R00
BrandMurata
R 28.298
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 4 → 25pF 25pF