18pF RF Capacitors:

76 Products Found
Our range of RF capacitors offers capacitance values from 0.1pF to 0.1µF, and voltage ratings from 2V to 2.5kV.

What is an RF Capacitor?

An RF capacitor is a capacitor with material and design characteristics optimised for RF frequencies. The key characteristics are:
  1. Lowest possible Equivalent Series Resistance (ESR) at RF frequencies
  2. High Q at RF frequencies
  3. Minimal capacitance change with temperature
  4. High series resonant frequency (SRF)

What is an RF Capacitor used for?

RF capacitors are used for various functions such as DC blocking, bypass, filtering, and impedance matching. Common applications include the following:
  1. RF power amplifiers (PA)
  2. Cellular base stations (4G, 5G)
  3. Wireless LAN
  4. Telecommunication Networks
  5. GPS
  6. Keyless entry systems
  7. Bluetooth
  8. Automotive V2X, Safety Systems, Power Train, Communication Systems

What capacitors are best for RF?

Single layer capacitors (SLCs) are specifically designed for use in microwave and RF applications. This is because the inherent self-resonant frequency (SRF), which is the point where the capacitor will exhibit the least amount of impedance, of an SLC is the highest of any discrete lumped constant capacitor. Capacitors with a high SRF have low equivalent series resistance (ESR), which is the internal resistance in the capacitor that appears in series with the capacitance of the device.This is important because, in general, ESR increases as frequency increases, so using a capacitor that has inherently low ESR is necessary. Additionally, since SLCs are formed monolithically, the number of mechanical parts in the SLC is limited, which also contributes to a lower ESR value.One potential drawback of SLCs is that since they comprise just a single layer of material, capacitance is heavily dependent on the dielectric constant of the dielectric used, which limits the capacitance that can be achieved. Therefore, SLCs are mainly ideal for high-frequency, low-capacitance applications.
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4166770RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Rs.3.580
2500+
Rs.2.190
5000+
Rs.2.150
Min: 500 / Mult: 10
18pF
-
50V
0402 [1005 Metric]
HiQ CQ Series
± 5%
C0G / NP0
125°C
1mm
-
0.5mm
Wraparound
-55°C
-
-
4166770

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.6.620
100+
Rs.4.100
500+
Rs.3.580
2500+
Rs.2.190
5000+
Rs.2.150
Min: 10 / Mult: 10
18pF
-
50V
0402 [1005 Metric]
HiQ CQ Series
± 5%
C0G / NP0
125°C
1mm
-
0.5mm
Wraparound
-55°C
-
-
4255974RL

RoHS

Each (Supplied on Cut Tape)
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Packaging Options
500+
Rs.5.320
2500+
Rs.3.230
5000+
Rs.3.170
Min: 500 / Mult: 10
18pF
-
50V
0402 [1005 Metric]
HiQ CQ Series
± 1%
C0G / NP0
125°C
1mm
-
0.5mm
Standard Terminal
-55°C
-
-
4255974

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.9.150
100+
Rs.5.490
500+
Rs.5.320
2500+
Rs.3.230
5000+
Rs.3.170
Min: 10 / Mult: 10
18pF
-
50V
0402 [1005 Metric]
HiQ CQ Series
± 1%
C0G / NP0
125°C
1mm
-
0.5mm
Standard Terminal
-55°C
-
-
1885342

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Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.13.000
100+
Rs.8.390
500+
Rs.8.150
2500+
Rs.7.900
5000+
Rs.7.660
More Pricing...
Min: 10 / Mult: 10
18pF
50V
-
-
S Series
± 2%
-
125°C
-
0402 [1005 Metric]
-
-
-
-
-
1885401

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Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.20.830
100+
Rs.19.660
500+
Rs.18.490
1000+
Rs.17.310
2000+
Rs.16.140
More Pricing...
Min: 10 / Mult: 10
18pF
250V
-
-
S Series
± 2%
-
125°C
-
0603 [1608 Metric]
-
-
-
-
-
2809442

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Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.26.750
100+
Rs.18.050
500+
Rs.17.790
1000+
Rs.13.520
2000+
Rs.12.870
More Pricing...
Min: 10 / Mult: 10
18pF
50V
-
-
HiQ-CBR Series
± 1%
-
125°C
-
0603 [1608 Metric]
-
-
-
-
-
1885402

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.13.010
100+
Rs.12.410
500+
Rs.11.800
1000+
Rs.11.200
2000+
Rs.10.590
More Pricing...
Min: 10 / Mult: 10
18pF
250V
-
-
S Series
± 5%
-
125°C
-
0603 [1608 Metric]
-
-
-
-
-
3772422

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Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.5.790
100+
Rs.3.380
500+
Rs.2.980
2500+
Rs.2.570
5000+
Rs.2.140
More Pricing...
Min: 10 / Mult: 10
18pF
-
50V
0402 [1005 Metric]
AQ Series
± 5%
C0G / NP0
125°C
1.02mm
-
0.5mm
Wraparound
-55°C
AEC-Q200
-
2906254

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.17.690
100+
Rs.11.160
500+
Rs.10.730
1000+
Rs.8.470
2000+
Rs.7.910
More Pricing...
Min: 10 / Mult: 10
18pF
25V
-
-
HiQ-CBR Series
± 1%
-
125°C
-
0201 [0603 Metric]
-
-
-
-
-
1973027

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.6.970
100+
Rs.4.270
500+
Rs.3.840
1000+
Rs.2.880
2000+
Rs.2.450
More Pricing...
Min: 10 / Mult: 10
18pF
50V
-
-
HiQ-CBR Series
± 5%
-
125°C
-
0402 [1005 Metric]
-
-
-
-
-
1885401RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
Rs.19.660
500+
Rs.18.490
1000+
Rs.17.310
2000+
Rs.16.140
4000+
Rs.14.970
Min: 100 / Mult: 25
18pF
250V
-
-
S Series
± 2%
-
125°C
-
0603 [1608 Metric]
-
-
-
-
-
2310336

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.8.490
100+
Rs.4.360
500+
Rs.3.130
2500+
Rs.1.790
7500+
Rs.1.460
More Pricing...
Min: 10 / Mult: 10
18pF
25V
-
-
MCRF Series
± 5%
-
125°C
-
0201 [0603 Metric]
-
-
-
-
-
1885435RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
Rs.16.070
500+
Rs.15.580
1000+
Rs.15.080
2000+
Rs.14.580
4000+
Rs.14.090
Min: 100 / Mult: 10
18pF
250V
-
-
S Series
± 5%
-
125°C
-
0805 [2012 Metric]
-
-
-
-
-
1885402RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Rs.11.800
1000+
Rs.11.200
2000+
Rs.10.590
4000+
Rs.9.980
Min: 500 / Mult: 10
18pF
250V
-
-
S Series
± 5%
-
125°C
-
0603 [1608 Metric]
-
-
-
-
-
1885342RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Rs.8.150
2500+
Rs.7.900
5000+
Rs.7.660
10000+
Rs.7.410
Min: 500 / Mult: 10
18pF
50V
-
-
S Series
± 2%
-
125°C
-
0402 [1005 Metric]
-
-
-
-
-
2310336RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Rs.3.130
2500+
Rs.1.790
7500+
Rs.1.460
15000+
Rs.1.230
Min: 500 / Mult: 10
18pF
25V
-
-
MCRF Series
± 5%
-
125°C
-
0201 [0603 Metric]
-
-
-
-
-
1885435

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.25.030
100+
Rs.16.070
500+
Rs.15.580
1000+
Rs.15.080
2000+
Rs.14.580
More Pricing...
Min: 10 / Mult: 10
18pF
250V
-
-
S Series
± 5%
-
125°C
-
0805 [2012 Metric]
-
-
-
-
-
1973027RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Rs.3.840
1000+
Rs.2.880
2000+
Rs.2.450
10000+
Rs.2.010
Min: 500 / Mult: 10
18pF
50V
-
-
HiQ-CBR Series
± 5%
-
125°C
-
0402 [1005 Metric]
-
-
-
-
-
2522556RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
Rs.12.120
500+
Rs.10.470
1000+
Rs.8.810
2000+
Rs.8.160
4000+
Rs.7.510
Min: 100 / Mult: 10
18pF
50V
-
-
0
± 1%
-
125°C
-
0402 [1005 Metric]
-
-
-
-
-
2420137RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
Rs.63.200
250+
Rs.56.840
500+
Rs.50.480
1000+
Rs.44.460
5000+
Rs.40.900
More Pricing...
Min: 100 / Mult: 1
18pF
1.5kV
-
-
VJ HIFREQ Series
± 2%
-
125°C
-
1111 [2828 Metric]
-
-
-
-
-
2522556

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
Rs.17.080
100+
Rs.12.120
500+
Rs.10.470
1000+
Rs.8.810
2000+
Rs.8.160
More Pricing...
Min: 10 / Mult: 10
18pF
50V
-
-
0
± 1%
-
125°C
-
0402 [1005 Metric]
-
-
-
-
-
2420137

RoHS

Each (Supplied on Cut Tape)
Cut Tape
1+
Rs.112.320
50+
Rs.77.390
100+
Rs.63.200
250+
Rs.56.840
500+
Rs.50.480
More Pricing...
Min: 1 / Mult: 1
18pF
1.5kV
-
-
VJ HIFREQ Series
± 2%
-
125°C
-
1111 [2828 Metric]
-
-
-
-
-
2906254RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
Rs.11.160
500+
Rs.10.730
1000+
Rs.8.470
2000+
Rs.7.910
4000+
Rs.7.340
Min: 100 / Mult: 10
18pF
25V
-
-
HiQ-CBR Series
± 1%
-
125°C
-
0201 [0603 Metric]
-
-
-
-
-
2985059RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
Rs.6.620
1000+
Rs.5.800
2000+
Rs.5.450
10000+
Rs.5.110
20000+
Rs.4.900
More Pricing...
Min: 500 / Mult: 10
18pF
100V
-
-
HiQ-CBR Series
± 5%
-
125°C
-
0402 [1005 Metric]
-
-
-
-
-
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