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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Description Price 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 Stock No. 626-2046
Mfr. Part No.BB207
BrandNXP
€0.30
Each (In a Pack of 10)
units
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 Stock No. 170-2060
Mfr. Part No.BB207
BrandNXP
€0.376
Each (On a Reel of 3000)
units
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 Stock No. 110-9106
Mfr. Part No.BB439E6327HTSA1
BrandInfineon
€0.444
Each (On a Tape of 40)
units
Single Tuner 1 4.3pF 28V - 5 SOD-323 2 - 1.7 x 1.25 x 0.85mm 0.85mm 1.7mm +125 °C
RS Stock No. 178-7396
Mfr. Part No.BB814E6327GR1HTSA1
BrandInfineon
€0.096
Each (On a Reel of 3000)
units
Common Cathode Tuner 2 43pF 18V 200 2.05 SOT-23 3 2 → 8V 2.9 x 1.3 x 0.9mm 0.9mm 2.9mm +125 °C
RS Stock No. 626-1879
Mfr. Part No.BB131,115
BrandNXP
€0.246
Each (In a Pack of 25)
units
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 Stock No. 826-9377
Mfr. Part No.BBY5303WE6327HTSA1
BrandInfineon
€0.096
Each (In a Pack of 100)
units
Single Tuner, VCO 1 4.8pF 6V - 1.8 SOD-323 2 1 → 3V 1.7 x 1.25 x 0.9mm 0.9mm 1.7mm +125 °C
RS Stock No. 165-7472
Mfr. Part No.BB639E7904HTSA1
BrandInfineon
€0.039
Each (On a Reel of 3000)
units
Single Tuner 1 36pF 30V - 13.5 SOD-323 2 1 → 28V 1.7 x 1.25 x 1.05mm 1.05mm 1.7mm +150 °C
RS Stock No. 826-9314
Mfr. Part No.BB814E6327GR1HTSA1
BrandInfineon
€0.155
Each (In a Pack of 100)
units
Common Cathode Tuner 2 43pF 18V 200 2.05 SOT-23 3 2 → 8V 2.9 x 1.3 x 0.9mm 0.9mm 2.9mm +125 °C
RS Stock No. 166-0382
Mfr. Part No.BB131,115
BrandNXP
€0.079
Each (On a Reel of 3000)
units
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 Stock No. 145-8825
Mfr. Part No.BB914E6327HTSA1
BrandInfineon
€0.065
Each (On a Reel of 3000)
units
Common Cathode FM Radio Tuner 2 17.6pF 18V - 2.28 SOT-23 3 8V 2.9 x 1.3 x 0.9mm 0.9mm 2.9mm +125 °C
RS Stock No. 165-7448
Mfr. Part No.BBY5302VH6327XTSA1
BrandInfineon
€0.103
Each (On a Reel of 3000)
units
Single VCO 1 1.85pF 6V - 1.8 SC-79 2 1 → 3V 1.2 x 0.8 x 0.55mm 0.55mm 1.2mm +125 °C
RS Stock No. 179-1056
Mfr. Part No.BB135,115
BrandNXP
€0.07
Each (On a Reel of 3000)
units
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 Stock No. 890-2579
Mfr. Part No.1SV229(TPH3,F)
BrandToshiba
€0.206
Each (In a Pack of 25)
units
Single - 1 - - - - SOD-323 2 - 1.7 x 1.25 x 0.9mm 0.9mm 1.7mm +125 °C
RS Stock No. 626-1958
Mfr. Part No.BB156,115
BrandNXP
€0.714
Each (In a Pack of 10)
units
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 Stock No. 178-7399
Mfr. Part No.BB837E6327HTSA1
BrandInfineon
€0.108
Each (On a Reel of 3000)
units
Single Tuner 1 6pF 30V - 10.2 SOD-323 2 1 → 28V 1.7 x 1.25 x 0.9mm 0.9mm 1.7mm +150 °C
RS Stock No. 165-5627
Mfr. Part No.BBY6602VH6327XTSA1
BrandInfineon
€0.11
Each (On a Reel of 3000)
units
Single Tuner, VCO 1 66pF 12V - 5 SC-79 2 1 → 4.5V 1.2 x 0.8 x 0.55mm 0.55mm 1.2mm +150 °C
RS Stock No. 166-0534
Mfr. Part No.BB208-03,115
BrandNXP
€0.154
Each (On a Reel of 3000)
units
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 Stock No. 626-1914
Mfr. Part No.BB145B,115
BrandNXP
€0.111
Each (In a Pack of 20)
units
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 Stock No. 826-9373
Mfr. Part No.BB837E6327HTSA1
BrandInfineon
€0.178
Each (In a Pack of 100)
units
Single Tuner 1 6pF 30V - 10.2 SOD-323 2 1 → 28V 1.7 x 1.25 x 0.9mm 0.9mm 1.7mm +150 °C
RS Stock No. 626-1992
Mfr. Part No.BB181,115
BrandNXP
€0.246
Each (In a Pack of 30)
units
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