2.1pF RF Capacitors:

12 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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2809623

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$0.875
100+
HK$0.505
500+
HK$0.415
1000+
HK$0.326
2000+
HK$0.285
More Pricing...
Min: 10 / Mult: 10
2.1pF
50V
-
-
HiQ-CBR Series
± 0.1pF
-
125°C
-
0201 [0603 Metric]
-
-
-
2809378

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$5.130
100+
HK$5.030
500+
HK$4.930
1000+
HK$4.830
2000+
HK$4.720
More Pricing...
Min: 10 / Mult: 10
2.1pF
250V
-
-
HiQ-CBR Series
± 0.1pF
-
125°C
-
0603 [1608 Metric]
-
-
-
3346196

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$0.411
100+
HK$0.247
500+
HK$0.222
2500+
HK$0.148
5000+
HK$0.146
Min: 10 / Mult: 10
2.1pF
-
50V
0402 [1005 Metric]
GJM Series
± 0.1pF
C0G / NP0
125°C
1.02mm
-
0.5mm
Wraparound
-55°C
2809623RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.415
1000+
HK$0.326
2000+
HK$0.285
15000+
HK$0.245
30000+
HK$0.240
More Pricing...
Min: 500 / Mult: 10
2.1pF
50V
-
-
HiQ-CBR Series
± 0.1pF
-
125°C
-
0201 [0603 Metric]
-
-
-
2809378RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
HK$5.030
500+
HK$4.930
1000+
HK$4.830
2000+
HK$4.720
4000+
HK$4.620
Min: 100 / Mult: 10
2.1pF
250V
-
-
HiQ-CBR Series
± 0.1pF
-
125°C
-
0603 [1608 Metric]
-
-
-
3346196RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.222
2500+
HK$0.148
5000+
HK$0.146
Min: 500 / Mult: 10
2.1pF
-
50V
0402 [1005 Metric]
GJM Series
± 0.1pF
C0G / NP0
125°C
1.02mm
-
0.5mm
Wraparound
-55°C
4166647

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$0.354
100+
HK$0.222
500+
HK$0.173
2500+
HK$0.124
7500+
HK$0.122
Min: 10 / Mult: 10
2.1pF
-
25V
0201 [0603 Metric]
HiQ CQ Series
± 0.1pF
C0G / NP0
125°C
0.6mm
-
0.3mm
SMD
-55°C
4166647RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.173
2500+
HK$0.124
7500+
HK$0.122
Min: 500 / Mult: 10
2.1pF
-
25V
0201 [0603 Metric]
HiQ CQ Series
± 0.1pF
C0G / NP0
125°C
0.6mm
-
0.3mm
SMD
-55°C
2809572

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$1.020
100+
HK$0.642
500+
HK$0.576
1000+
HK$0.453
2000+
HK$0.412
More Pricing...
Min: 10 / Mult: 10
2.1pF
50V
-
-
HiQ-CBR Series
± 0.1pF
-
125°C
-
0603 [1608 Metric]
-
-
-
2994827

RoHS

Each (Supplied on Full Reel)
Full Reel
Packaging Options
10000+
HK$0.099
50000+
HK$0.091
100000+
HK$0.090
Min: 10000 / Mult: 10000
2.1pF
-
50V
0402 [1005 Metric]
GJM Series
± 0.1pF
C0G / NP0
125°C
1.02mm
-
0.5mm
Wraparound
-55°C
2809572RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.576
1000+
HK$0.453
2000+
HK$0.412
4000+
HK$0.370
Min: 500 / Mult: 10
2.1pF
50V
-
-
HiQ-CBR Series
± 0.1pF
-
125°C
-
0603 [1608 Metric]
-
-
-
4388468

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
HK$1.350
100+
HK$0.765
500+
HK$0.621
2500+
HK$0.477
5000+
HK$0.432
More Pricing...
Min: 10 / Mult: 10
2.1pF
50V
-
-
S Series
± 0.1pF
-
150°C
-
0402 [1005 Metric]
-
-
-
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