Varactor Diodes

Varactor Diode are a semiconductor diode that is is utilised in RF tuning to circuits voltage-controlled variable capacitance. This type of diode can be used in a multitude of areas where a capacitance level needs to be controlled by a voltage.

How does a varactor diode work?

In order to achieve a specific variance in capacitance, this type of diode works with the different region types of a capacitor known as P-type and N-type. These types can be manipulated to give out higher depletion sizes or narrowed and decreased in size, this will give you the variable capacitance you wish out of the device.

Varactor diodes can also provide analogue control of voltage and can also alongside digitally generated voltage in microprocessors. an ADC can then be utilised to convert from analogue voltage to control the diode.

Where are varactor diodes used?

Varactor diodes have a range of application use such as;

  • Satellites
  • TV tuning
  • DVD devices
  • RF Tuning
  • Frequency synthesizers

...
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Omschrijving Prijs Diode Configuration Application Number of Elements per Chip Minimum Diode Capacitance Maximum Reverse Voltage Minimum Quality Factor Minimum Tuning Ratio Package Type Pin Count Tuning Ratio Test Condition Dimensions Height Length Maximum Operating Temperature
RS-stocknr. 166-1216
FabrikantnummerBBY40,215
FabrikantNXP
€ 0,113
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Aantal stuks
Single Tuner 1 26pF 30V - 5 SOT-23 (TO-236AB) 3 3 → 25V 3 x 1.4 x 1mm 1mm 3mm +125 °C
RS-stocknr. 436-7874
FabrikantnummerBBY40,215
FabrikantNXP
€ 0,32
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Aantal stuks
Single Tuner 1 26pF 30V - 5 SOT-23 (TO-236AB) 3 3 → 25V 3 x 1.4 x 1mm 1mm 3mm +125 °C
RS-stocknr. 170-2060
FabrikantnummerBB207
FabrikantNXP
€ 0,376
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Common Cathode Tuner 2 76pF 15V - 2.6 SOT-23 (TO-236AB) 3 1 → 7.5V 3 x 1.4 x 1mm 1mm 3mm +125 °C
RS-stocknr. 626-2046
FabrikantnummerBB207
FabrikantNXP
€ 0,30
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Aantal stuks
Common Cathode Tuner 2 76pF 15V - 2.6 SOT-23 (TO-236AB) 3 1 → 7.5V 3 x 1.4 x 1mm 1mm 3mm +125 °C
RS-stocknr. 626-1891
FabrikantnummerBB135,115
FabrikantNXP
€ 0,223
Each (In a Pack of 25)
Aantal stuks
Single Tuner, VCO 1 17.5pF 30V - 8.9 SOD-323 2 0.5 to 28V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm +125 °C
RS-stocknr. 626-1879
FabrikantnummerBB131,115
FabrikantNXP
€ 0,246
Each (In a Pack of 25)
Aantal stuks
Single Tuner, VCO 1 8pF 30V - 12 SOD-323 2 0.5 to 28V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm +125 °C
RS-stocknr. 166-0382
FabrikantnummerBB131,115
FabrikantNXP
€ 0,079
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Aantal stuks
Single Tuner, VCO 1 8pF 30V - 12 SOD-323 2 0.5 → 28V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm +125 °C
RS-stocknr. 179-1056
FabrikantnummerBB135,115
FabrikantNXP
€ 0,07
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Aantal stuks
Single Tuner, VCO 1 17.5pF 30V - 8.9 SOD-323 2 0.5 → 28V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm +125 °C
RS-stocknr. 626-1992
FabrikantnummerBB181,115
FabrikantNXP
€ 0,246
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Single Tuner, VCO 1 8pF 30V - 12 SOD-523 2 0.5 to 28V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm +150 °C
RS-stocknr. 626-2080
FabrikantnummerBB208-03,115
FabrikantNXP
€ 0,385
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Aantal stuks
Single TCXO, Tune, VCXO 1 19.9pF 10V - 3.7 SOD-323 2 1 to 7.5V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm +125 °C
RS-stocknr. 166-0399
FabrikantnummerBB145B,115
FabrikantNXP
€ 0,139
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Single VCO 1 6.4pF 6V - 2 SOD-523 2 1 → 4V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm +150 °C
RS-stocknr. 626-1914
FabrikantnummerBB145B,115
FabrikantNXP
€ 0,111
Each (In a Pack of 20)
Aantal stuks
Single VCO 1 6.4pF 6V - 2 SOD-523 2 1 to 4V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm +150 °C
RS-stocknr. 179-1058
FabrikantnummerBB202,115
FabrikantNXP
€ 0,212
Each (On a Reel of 3000)
Aantal stuks
Single Tuner, VCO 1 28.2pF 6V - 2.5 SOD-523 2 0.2 → 2.3V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm +85 °C
RS-stocknr. 626-1958
FabrikantnummerBB156,115
FabrikantNXP
€ 0,714
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Aantal stuks
Single VCO 1 14.4pF 10V - 2.7 SOD-323 2 1 to 7.5V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm +125 °C
RS-stocknr. 626-2074
FabrikantnummerBB202,115
FabrikantNXP
€ 0,485
Each (In a Pack of 10)
Aantal stuks
Single Tuner, VCO 1 28.2pF 6V - 2.5 SOD-523 2 0.2 to 2.3V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm +85 °C
RS-stocknr. 166-0534
FabrikantnummerBB208-03,115
FabrikantNXP
€ 0,154
Each (On a Reel of 3000)
Aantal stuks
Single TCXO, Tune, VCXO 1 19.9pF 10V - 3.7 SOD-323 2 1 → 7.5V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm +125 °C
RS-stocknr. 166-0356
FabrikantnummerBB181,115
FabrikantNXP
€ 0,079
Each (On a Reel of 3000)
Aantal stuks
Single Tuner, VCO 1 8pF 30V - 12 SOD-523 2 0.5 → 28V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm +150 °C