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. 175-3524
BrandRS PRO
PHP9.338
Each (In a Bag of 500)
units
- 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 2.5 → 7pF 7pF
RS Stock No. 175-3548
BrandRS PRO
PHP20.233
Each (In a Pack of 25)
units
- 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 10 → 50pF 50pF
RS Stock No. 175-3526
BrandRS PRO
PHP9.338
Each (In a Bag of 500)
units
- 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 4.5 → 20pF 20pF
RS Stock No. 175-3525
BrandRS PRO
PHP9.338
Each (In a Bag of 500)
units
- 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 3 → 10pF 10pF
RS Stock No. 175-3527
BrandRS PRO
PHP9.338
Each (In a Bag of 500)
units
- 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 6 → 30pF 30pF
RS Stock No. 175-3543
BrandRS PRO
PHP18.676
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. 175-3528
BrandRS PRO
PHP11.673
Each (In a Bag of 500)
units
- 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 10 → 50pF 50pF
RS Stock No. 175-3544
BrandRS PRO
PHP18.676
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. 175-3546
BrandRS PRO
PHP18.676
Each (In a Pack of 25)
units
- 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 6 → 30pF 30pF
RS Stock No. 175-3545
BrandRS PRO
PHP18.676
Each (In a Pack of 25)
units
- 100V Ceramic - Through Hole 0 → 50% 5 x 6mm 5.3mm 0.2mm 5mm 6mm - 4.5 → 20pF 20pF
RS Stock No. 378-906
Mfr. Part No.BFC280907015
BrandVishay
PHP2,844.278
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
PHP2,132.55
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. 106-2893
Mfr. Part No.TZB4R500BA10R00
BrandMurata
PHP100.04
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. 381-419
Mfr. Part No.BFC280908003
BrandVishay
PHP895.13
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. 832-302
Mfr. Part No.TZC3Z060A110R00
BrandMurata
PHP59.64
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. 169-2690
Mfr. Part No.TZC3Z060A110R00
BrandMurata
PHP18.788
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. 832-374
Mfr. Part No.TZB4Z030AB10R00
BrandMurata
PHP67.73
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. 169-2694
Mfr. Part No.TZB4Z030AB10R00
BrandMurata
PHP26.30
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 1.4 → 3pF 3pF
RS Stock No. 185-7572
Mfr. Part No.LXRW0YV600-054
BrandMurata
PHP69.10
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. 185-7337
Mfr. Part No.LXRW19V330-050
BrandMurata
PHP36.10
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 16.5 → 33pF 33pF
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