Trimmer Capacitors:

36 Products Found
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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4143683

RoHS

Each
1+
HK$58.120
50+
HK$41.680
100+
HK$40.080
250+
HK$38.480
500+
HK$36.880
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Min: 1 / Mult: 1
4pF
27pF
150V
-
Through Hole
Screwdriver Slot
Radial Leaded
-
7.8mm
6.2mm
9mm
BFC2 808 Series
-40°C
70°C
4143686

RoHS

Each
1+
HK$402.540
10+
HK$357.160
50+
HK$350.020
100+
HK$342.880
200+
HK$335.740
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Min: 1 / Mult: 1
7pF
100pF
200V
-
Through Hole
Top
Radial Leaded
-
14mm
11.5mm
9.2mm
BFC2 809 Series
-40°C
125°C
3052318

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
HK$5.650
100+
HK$4.060
500+
HK$3.880
2500+
HK$2.820
5000+
HK$2.770
Min: 10 / Mult: 10
30pF
60pF
-
-
Surface Mount
-
SMD
-
0.6mm
0.3mm
0.6mm
LXRW Series
-30°C
85°C
3052318RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
HK$4.060
500+
HK$3.880
2500+
HK$2.820
5000+
HK$2.770
Min: 100 / Mult: 10
30pF
60pF
-
-
Surface Mount
-
SMD
-
0.6mm
0.3mm
0.6mm
LXRW Series
-30°C
85°C
4559473

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Each (Supplied on Full Reel)
Full Reel
Packaging Options
10000+
HK$2.710
50000+
HK$2.370
100000+
HK$1.960
Min: 10000 / Mult: 10000
30pF
60pF
-
-
Surface Mount
Variable
CSP
-
0.6mm
0.6mm
0.3mm
LXRW Series
-30°C
85°C
1367627

RoHS

JOHANSON MANUFACTURING
Each
1+
HK$201.930
2+
HK$169.520
3+
HK$146.960
5+
HK$136.380
10+
HK$126.680
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Min: 1 / Mult: 1
2.5pF
10pF
250V
-
Surface Mount
Screwdriver Slot
-
-
-
-
-
Cera-Trim Series
-55°C
125°C
1650999

RoHS

JOHANSON MANUFACTURING
Each
1+
HK$23.480
10+
HK$19.710
100+
HK$17.090
500+
HK$15.860
1000+
HK$14.730
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Min: 1 / Mult: 1
12pF
100pF
250V
-
Through Hole
Screwdriver Slot
Radial Leaded
-
-
-
8.99mm
9300 Series
-
-
1219032

RoHS

Each
5+
HK$18.540
100+
HK$14.250
1000+
HK$10.020
5000+
HK$8.590
Min: 1 / Mult: 1
5pF
30pF
200V
-
Through Hole
Screwdriver Slot
Radial Leaded
5mm
-
-
6mm
-
-20°C
80°C
1219031

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Each
1+
HK$13.910
5+
HK$11.960
10+
HK$9.360
20+
HK$8.410
40+
HK$7.350
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Min: 1 / Mult: 1
3.5pF
20pF
200V
-
Through Hole
Screwdriver Slot
Radial Leaded
5mm
-
-
6mm
-
-20°C
80°C
1189327

RoHS

Each
1+
HK$5.720
10+
HK$4.330
100+
HK$3.880
500+
HK$3.750
1000+
HK$3.520
More Pricing...
Min: 1 / Mult: 1
5pF
20pF
25V
0%, +100%
Surface Mount
Screwdriver Slot
SMD
-
3.2mm
2.5mm
1.3mm
CTZ2 Series
-25°C
85°C
1189303

RoHS

Each
1+
HK$4.690
10+
HK$3.520
100+
HK$3.160
500+
HK$3.050
1000+
HK$2.860
More Pricing...
Min: 1 / Mult: 1
1.5pF
10pF
25V
0%, +100%
Surface Mount
Screwdriver Slot
SMD
-
4.5mm
3.2mm
1.8mm
CTZ3 Series
-25°C
85°C
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