51pF 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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4062387

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Each (Supplied on Cut Tape)
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10+
HK$0.481
100+
HK$0.296
500+
HK$0.247
1000+
HK$0.206
2000+
HK$0.193
Min: 10 / Mult: 10
51pF
50V
HiQ-CBR Series
± 5%
125°C
0402 [1005 Metric]
AEC-Q200
2809420

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HK$8.890
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HK$6.220
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HK$5.440
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1000+
HK$4.400
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Min: 10 / Mult: 10
51pF
50V
HiQ-CBR Series
± 1%
125°C
0603 [1608 Metric]
-
2809435

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Each (Supplied on Cut Tape)
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HK$2.560
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HK$1.730
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HK$1.640
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HK$1.300
2000+
HK$1.210
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Min: 10 / Mult: 10
51pF
50V
HiQ-CBR Series
± 1%
125°C
0402 [1005 Metric]
-
2809435RL

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100+
HK$1.730
500+
HK$1.640
1000+
HK$1.300
2000+
HK$1.210
4000+
HK$1.120
Min: 100 / Mult: 10
51pF
50V
HiQ-CBR Series
± 1%
125°C
0402 [1005 Metric]
-
2809420RL

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Each (Supplied on Cut Tape)
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100+
HK$5.440
500+
HK$4.970
1000+
HK$4.400
2000+
HK$3.820
Min: 100 / Mult: 10
51pF
50V
HiQ-CBR Series
± 1%
125°C
0603 [1608 Metric]
-
4062445

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Each (Supplied on Cut Tape)
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10+
HK$3.540
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HK$2.330
500+
HK$1.980
1000+
HK$1.620
2000+
HK$1.490
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Min: 10 / Mult: 10
51pF
50V
HiQ-CBR Series
± 5%
125°C
0603 [1608 Metric]
AEC-Q200
2809326

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1+
HK$21.870
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HK$15.130
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HK$13.370
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HK$11.600
500+
HK$11.510
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Min: 1 / Mult: 1
51pF
250V
HiQ-CBR Series
± 1%
125°C
0603 [1608 Metric]
-
2809326RL

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Each (Supplied on Cut Tape)
Re-Reel
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100+
HK$11.600
500+
HK$11.510
1000+
HK$9.870
Min: 100 / Mult: 10
51pF
250V
HiQ-CBR Series
± 1%
125°C
0603 [1608 Metric]
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