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 Mounting Type Package Type Pin Count Tuning Ratio Test Condition Dimensions Height Length
RS Stock No. 110-9106
Mfr. Part No.BB439E6327HTSA1
BrandInfineon
SGD1.062
Each (On a Tape of 40)
units
Single Tuner 1 4.3pF 28V - 5 Surface Mount SOD-323 2 - 1.7 x 1.25 x 0.85mm 0.85mm 1.7mm
RS Stock No. 145-9418
Mfr. Part No.BB439E6327HTSA1
BrandInfineon
SGD0.56
Each (On a Reel of 3000)
units
Single Tuner 1 4.3pF 28V - 5 Surface Mount SOD-323 2 - 1.7 x 1.25 x 0.85mm 0.85mm 1.7mm
RS Stock No. 890-2579
Mfr. Part No.1SV229(TPH3,F)
BrandToshiba
SGD0.444
Each (In a Pack of 25)
units
Single - 1 - - - - Surface Mount SOD-323 2 - 1.7 x 1.25 x 0.9mm 0.9mm 1.7mm
RS Stock No. 653-1415
Mfr. Part No.BB639E7904HTSA1
BrandInfineon
SGD0.595
Each (In a Pack of 10)
units
Single Tuner 1 36pF 30V - 13.5 Surface Mount SOD-323 2 1 → 28V 1.7 x 1.25 x 1.05mm 1.05mm 1.7mm
RS Stock No. 165-7472
Mfr. Part No.BB639E7904HTSA1
BrandInfineon
SGD0.107
Each (On a Reel of 3000)
units
Single Tuner 1 36pF 30V - 13.5 Surface Mount SOD-323 2 1 → 28V 1.7 x 1.25 x 1.05mm 1.05mm 1.7mm
RS Stock No. 165-7447
Mfr. Part No.BBY5702VH6327XTSA1
BrandInfineon
SGD0.243
Each (On a Reel of 3000)
units
Single VCO 1 4pF 10V - 3 Surface Mount SC-79 2 1 → 4V 1.2 x 0.8 x 0.55mm 0.55mm 1.2mm
RS Stock No. 626-1914
Mfr. Part No.BB145B,115
BrandNXP
SGD0.209
Each (In a Pack of 20)
units
Single VCO 1 6.4pF 6V - 2 Surface Mount SOD-523 2 1 to 4V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm
RS Stock No. 161-1535
Mfr. Part No.5.0SMDJ26A
BrandBourns
SGD2.624
Each (In a Pack of 5)
units
Single - 1 - 26V - - Surface Mount DO-214AB (SMC) 2 - 7.11 x 6.22 x 2.31mm 2.31mm 7.11mm
RS Stock No. 165-7448
Mfr. Part No.BBY5302VH6327XTSA1
BrandInfineon
SGD0.262
Each (On a Reel of 3000)
units
Single VCO 1 1.85pF 6V - 1.8 Surface Mount SC-79 2 1 → 3V 1.2 x 0.8 x 0.55mm 0.55mm 1.2mm
RS Stock No. 170-2060
Mfr. Part No.BB207
BrandNXP
SGD0.726
Each (On a Reel of 3000)
units
Common Cathode Tuner 2 76pF 15V - 2.6 Surface Mount SOT-23 (TO-236AB) 3 1 → 7.5V 3 x 1.4 x 1mm 1mm 3mm
RS Stock No. 166-1176
Mfr. Part No.BB640E6327HTSA1
BrandInfineon
SGD0.161
Each (On a Reel of 3000)
units
Single Tuner 1 62pF 30V - 19.5 Surface Mount SOD-323 2 1 → 28V 1.7 x 1.25 x 0.9mm 0.9mm 1.7mm
RS Stock No. 626-2046
Mfr. Part No.BB207
BrandNXP
SGD0.579
Each (In a Pack of 10)
units
Common Cathode Tuner 2 76pF 15V - 2.6 Surface Mount SOT-23 (TO-236AB) 3 1 → 7.5V 3 x 1.4 x 1mm 1mm 3mm
RS Stock No. 178-7396
Mfr. Part No.BB814E6327GR1HTSA1
BrandInfineon
SGD0.224
Each (On a Reel of 3000)
units
Common Cathode Tuner 2 43pF 18V 200 2.05 Surface Mount SOT-23 3 2 → 8V 2.9 x 1.3 x 0.9mm 0.9mm 2.9mm
RS Stock No. 626-1891
Mfr. Part No.BB135,115
BrandNXP
SGD0.57
Each (In a Pack of 25)
units
Single Tuner, VCO 1 17.5pF 30V - 8.9 Surface Mount SOD-323 2 0.5 to 28V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm
RS Stock No. 626-1958
Mfr. Part No.BB156,115
BrandNXP
SGD0.812
Each (In a Pack of 10)
units
Single VCO 1 14.4pF 10V - 2.7 Surface Mount SOD-323 2 1 to 7.5V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm
RS Stock No. 124-5433
Mfr. Part No.SVC704-TL-E
Brandonsemi
SGD0.286
Each (On a Reel of 3000)
units
Single VCO 1 3.4pF 16V - 6 Surface Mount MCPH 3 1 → 7V 2 x 1.6 x 0.85mm 0.85mm 2mm
RS Stock No. 162-9645
Mfr. Part No.SVC230-TB-E
Brandonsemi
SGD0.214
Each (On a Reel of 3000)
units
Common Cathode Tuner 2 25.1pF 16V 100 1.65 Surface Mount SOT-23 3 2 → 8V 2.9 x 1.5 x 1.1mm 1.1mm 2.9mm
New
RS Stock No. 218-6284
Mfr. Part No.BBY5802VH6327XTSA1
BrandInfineon
SGD0.229
Each (In a Pack of 50)
units
Single - 1 4.7pF 10V - - - TSLP-2-1 - - - - -
RS Stock No. 626-2080
Mfr. Part No.BB208-03,115
BrandNXP
SGD0.797
Each (In a Pack of 10)
units
Single TCXO, Tune, VCXO 1 19.9pF 10V - 3.7 Surface Mount SOD-323 2 1 to 7.5V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm
RS Stock No. 166-0399
Mfr. Part No.BB145B,115
BrandNXP
SGD0.212
Each (On a Reel of 3000)
units
Single VCO 1 6.4pF 6V - 2 Surface Mount SOD-523 2 1 → 4V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm