4.1pF RF Capacitors:

8 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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2809585

RoHS

Each (Supplied on Cut Tape)
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10+
HK$0.805
100+
HK$0.466
500+
HK$0.441
1000+
HK$0.415
2000+
HK$0.330
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Min: 10 / Mult: 10
4.1pF
50V
HiQ-CBR Series
± 0.1pF
125°C
0603 [1608 Metric]
2809585RL

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Each (Supplied on Cut Tape)
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500+
HK$0.441
1000+
HK$0.415
2000+
HK$0.330
4000+
HK$0.245
20000+
HK$0.222
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Min: 500 / Mult: 10
4.1pF
50V
HiQ-CBR Series
± 0.1pF
125°C
0603 [1608 Metric]
2809390

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Each (Supplied on Cut Tape)
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10+
HK$2.470
100+
HK$2.160
500+
HK$1.790
1000+
HK$1.600
2000+
HK$1.480
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Min: 10 / Mult: 10
4.1pF
250V
HiQ-CBR Series
± 0.1pF
125°C
0603 [1608 Metric]
2809716

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10+
HK$0.675
100+
HK$0.420
500+
HK$0.379
1000+
HK$0.280
2000+
HK$0.231
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Min: 10 / Mult: 10
4.1pF
50V
HiQ-CBR Series
± 0.1pF
125°C
0402 [1005 Metric]
2809716RL

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Each (Supplied on Cut Tape)
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Packaging Options
500+
HK$0.379
1000+
HK$0.280
2000+
HK$0.231
10000+
HK$0.181
Min: 500 / Mult: 10
4.1pF
50V
HiQ-CBR Series
± 0.1pF
125°C
0402 [1005 Metric]
2809390RL

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Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
HK$2.160
500+
HK$1.790
1000+
HK$1.600
2000+
HK$1.480
4000+
HK$1.380
More Pricing...
Min: 100 / Mult: 10
4.1pF
250V
HiQ-CBR Series
± 0.1pF
125°C
0603 [1608 Metric]
2809644

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Each (Supplied on Cut Tape)
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10+
HK$0.962
100+
HK$0.568
500+
HK$0.444
1000+
HK$0.411
2000+
HK$0.329
More Pricing...
Min: 10 / Mult: 10
4.1pF
50V
HiQ-CBR Series
± 0.1pF
125°C
0201 [0603 Metric]
2809644RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.444
1000+
HK$0.411
2000+
HK$0.329
15000+
HK$0.247
Min: 500 / Mult: 10
4.1pF
50V
HiQ-CBR Series
± 0.1pF
125°C
0201 [0603 Metric]
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