Trimmer Capacitors

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We offer radial leaded, through hole, and SMD trimmer capacitor types.

What is a trimmer capacitor?

Trimmer capacitors are variable capacitors which serve the purpose of initial calibration of equipment during manufacturing or servicing. They are not intended for end-user interaction. Trimmer capacitors are almost always mounted directly on the PCB (Printed Circuit Board), so the user does not have access to them, and set during manufacturing using a small screwdriver. Due to their nature, trimmer capacitors are cheaper than full sized variable capacitors and rated for many fewer adjustments.

Trimmer capacitors are used to initially set oscillator frequency values, latencies, rise and fall times and other variables in a circuit. Should the values drift over time, these trimmer capacitors allow repairmen to re-calibrate equipment when needed. There are two types of trimmer capacitors: air trimmer capacitor and ceramic trimmer capacitor.

Examples of our trimmer capacitors

We offer film dielectric trimmers for impedance matching circuits. These allow for easy adjustment of resistance values through physical manipulation Applications include medical, consumer electronics, and industrial.

Another example is a radial leaded film dielectric trimmer capacitor with top and bottom adjustment. The Vishay BFC2 809 080 series assists energy conversion while providing low losses, high efficiency and long life. Plastic film trimmers reduce microphony effects and are suited for impedance matching RF circuits.

They consist of a polysulphone housing, brass rotor and plated brass stator with PTFE film as the dielectric. The stator plate tags are heat sealed to the housing. The rotor contact surfaces are plated to ensure a long life and a stable contact even under severe climatic conditions. A coloured dot indicates the maximum capacitance. Flux absorption between the vanes is prevented.

Applications include communications & networking, medical, and RF communications

Padder capacitors

A padder is a trimmer capacitor inserted in series with the oscillator tuning circuit of a superheterodyne receiver to control calibration at the low frequency end of a tuning range.

 
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BFC280905217
BFC280905217 - Trimmer Capacitor, 2 pF to 18 pF, 300 V, Radial Leaded

1215714

Trimmer Capacitor, 2 pF to 18 pF, 300 V, Radial Leaded

VISHAY

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2pF 18pF 300V - Screwdriver Slot - Through Hole - 7.4mm -40°C 6.7mm 125°C 9mm -
LXRW19V330-050
LXRW19V330-050 - VARIABLE CAPACITOR, 16.5-33PF, SMD

3052316

VARIABLE CAPACITOR, 16.5-33PF, SMD

MURATA

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3052316RL in Re-reel

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16.5pF 33pF - - - SMD Surface Mount - 1.3mm -30°C 0.9mm 85°C 0.6mm LXRW
LXRW19V330-050
LXRW19V330-050 - VARIABLE CAPACITOR, 16.5-33PF, SMD

3052316RL

VARIABLE CAPACITOR, 16.5-33PF, SMD

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- - - - - SMD Surface Mount - 1.3mm - 0.9mm - 0.6mm -
BFC280908002
BFC280908002 - Trimmer Capacitor, 4 pF to 40 pF, 300 V, Radial Leaded

1215715

Trimmer Capacitor, 4 pF to 40 pF, 300 V, Radial Leaded

VISHAY

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4pF 38pF 250V - Screwdriver Slot Radial Leaded Through Hole - 10.9mm -40°C 10.5mm 125°C 11mm -
BFC280811229
BFC280811229 - Trimmer Capacitor, 2 pF to 22 pF, 150 V, Radial Leaded

1215709

Trimmer Capacitor, 2 pF to 22 pF, 150 V, Radial Leaded

VISHAY

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2pF 22pF 150V - Screwdriver Slot Radial Leaded Through Hole 10mm - -40°C - 70°C 10mm -
BFC280905215
BFC280905215 - Trimmer Capacitor, 1 pF to 3.5 pF, 300 V, Radial Leaded

1215713

Trimmer Capacitor, 1 pF to 3.5 pF, 300 V, Radial Leaded

VISHAY

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1pF 3.5pF 300V - Screwdriver Slot - Through Hole - 7.4mm -40°C 6.7mm 125°C 9mm -
LXRW19V600-055
LXRW19V600-055 - VARIABLE CAPACITOR, 30-60PF, SMD

3052319

VARIABLE CAPACITOR, 30-60PF, SMD

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30pF 60pF - - - SMD Surface Mount - 1.3mm -30°C 0.9mm 85°C 0.6mm LXRW
LXRW19V201-058
LXRW19V201-058 - VARIABLE CAPACITOR, 100-200PF, SMD

3052322

VARIABLE CAPACITOR, 100-200PF, SMD

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100pF 200pF 5.3V - - SMD Surface Mount - 0.9mm -40°C 0.4mm 85°C 1.3mm LXRW
LXRW0YV201-059
LXRW0YV201-059 - Variable Capacitor, 100 pF to 200 pF, 50 VAC, SMD

3524034

Variable Capacitor, 100 pF to 200 pF, 50 VAC, SMD

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100pF 200pF - - Variable SMD Surface Mount - 0.6mm -25°C 0.6mm 85°C 0.3mm LXRW
LXRW0YV600-054
LXRW0YV600-054 - VARIABLE CAPACITOR, 30-60PF, SMD

3052318

VARIABLE CAPACITOR, 30-60PF, SMD

MURATA

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30pF 60pF - - - SMD Surface Mount - 0.6mm -30°C 0.3mm 85°C 0.6mm LXRW
LXRW19V201-058
LXRW19V201-058 - VARIABLE CAPACITOR, 100-200PF, SMD

3052322RL

VARIABLE CAPACITOR, 100-200PF, SMD

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LXRW19V600-055
LXRW19V600-055 - VARIABLE CAPACITOR, 30-60PF, SMD

3052319RL

VARIABLE CAPACITOR, 30-60PF, SMD

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30pF 60pF - - - SMD Surface Mount - 1.3mm -30°C 0.9mm 85°C 0.6mm LXRW
LXRW0YV201-059
LXRW0YV201-059 - Variable Capacitor, 100 pF to 200 pF, 50 VAC, SMD

3524034RL

Variable Capacitor, 100 pF to 200 pF, 50 VAC, SMD

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100pF 200pF - - Variable SMD Surface Mount - 0.6mm -25°C 0.6mm 85°C 0.3mm LXRW
LXRW0YV600-054
LXRW0YV600-054 - VARIABLE CAPACITOR, 30-60PF, SMD

3052318RL

VARIABLE CAPACITOR, 30-60PF, SMD

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BFC280908003
BFC280908003 - CAP, 5-57PF, 250V, TRIMMER, RADIAL

2925035

CAP, 5-57PF, 250V, TRIMMER, RADIAL

VISHAY

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5pF 57pF 250V - Screwdriver Slot Radial Leaded Through Hole - 10.9mm -40°C 10.5mm 125°C 11mm BFC2 809 080 Series
27263
27263 - CAPACITOR TRIMMER 0.3PF-1.2PF, 500V, SMD

4827090

CAPACITOR TRIMMER 0.3PF-1.2PF, 500V, SMD

JOHANSON MANUFACTURING

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0.3pF 1.2pF 500V - Screwdriver Slot SMD Surface Mount 2.39mm - -65°C - 125°C 5.72mm -
BFC280811339
BFC280811339 - Trimmer Capacitor, 3 pF to 33 pF, 250 VDC, Through Hole

4143679

Trimmer Capacitor, 3 pF to 33 pF, 250 VDC, Through Hole

VISHAY

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3pF 33pF 250V - Screwdriver Slot Radial Leaded Through Hole 8mm - -40°C - 70°C 10mm BFC2 808 Series
BFC280823109
BFC280823109 - Trimmer Capacitor, 3 pF to 10 pF, 150 VDC, Through Hole

4143682

Trimmer Capacitor, 3 pF to 10 pF, 150 VDC, Through Hole

VISHAY

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3pF 10pF 150V - Screwdriver Slot Radial Leaded Through Hole - 7.3mm -40°C 5.5mm 70°C 7mm BFC2 808 Series
BFC280823508
BFC280823508 - Trimmer Capacitor, 1.5 pF to 5 pF, 150 VDC, Through Hole

4143684

Trimmer Capacitor, 1.5 pF to 5 pF, 150 VDC, Through Hole

VISHAY

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1.5pF 5pF 150V - Screwdriver Slot Radial Leaded Through Hole - 7.3mm -40°C 5.5mm 70°C 7mm BFC2 808 Series
BFC280907015
BFC280907015 - Trimmer Capacitor, 7 pF to 100 pF, 200 VDC, Through Hole

4143686

Trimmer Capacitor, 7 pF to 100 pF, 200 VDC, Through Hole

VISHAY

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7pF 100pF 200V - Top Radial Leaded Through Hole - 14mm -40°C 11.5mm 125°C 9.2mm BFC2 809 070 Series
2322-1G
2322-1G - CAPACITOR TRIMMER 1PF-5PF, 250V

1326025

CAPACITOR TRIMMER 1PF-5PF, 250V

JOHANSON MANUFACTURING

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1pF 5pF 250V - Screwdriver Slot SMD Surface Mount - 4.57mm -55°C 4.25mm 125°C 2.34mm Cera-Trim Series
BFC280800006
BFC280800006 - Trimmer Capacitor, 2.5 pF to 2.5 pF, 250 VDC, Through Hole

4143677

Trimmer Capacitor, 2.5 pF to 2.5 pF, 250 VDC, Through Hole

VISHAY

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2.5pF 22pF 250V - Screwdriver Slot Radial Leaded Through Hole 8mm - -40°C - 70°C 10mm BFC2 808 Series
BFC280832659
BFC280832659 - Trimmer Capacitor, 5.5 pF to 65 pF, 150 V, Radial Leaded

1215712

Trimmer Capacitor, 5.5 pF to 65 pF, 150 V, Radial Leaded

VISHAY

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5.5pF 65pF 150V - Screwdriver Slot Radial Leaded Through Hole - - -40°C - 70°C 11mm BFC2 808
LXRW0YV900-053
LXRW0YV900-053 - VARIABLE CAPACITOR, 45-90PF, SMD

3052317

VARIABLE CAPACITOR, 45-90PF, SMD

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45pF 90pF - - - SMD Surface Mount - 0.6mm -30°C 0.3mm 85°C 0.6mm LXRW
BFC280908003
BFC280908003 - Trimmer Capacitor, 5 pF to 57 pF, 300 V, Radial Leaded

1215716

Trimmer Capacitor, 5 pF to 57 pF, 300 V, Radial Leaded

VISHAY

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5pF 57pF 250V - Screwdriver Slot Radial Leaded Through Hole - 10.9mm -40°C 10.5mm 125°C 11mm BFC2 809 080