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. 145-9549
Mfr. Part No.BB535E7904HTSA1
BrandInfineon
kr 0,751
Each (On a Reel of 3000)
Units
Single UHF-TV Tuner 1 1.9pF 30V - 8.2 Surface Mount SOD-323 2 1 → 28V 1.7 x 1.25 x 1mm 1mm 1.7mm
RS Stock No. 857-8116
Mfr. Part No.BBY5503WE6327HTSA1
BrandInfineon
kr 1,182
Each (On a Reel of 3000)
Units
Single VCO in Mobile Communication 1 5.5pF 16V - 2 Surface Mount SOD-323 2 10 V, 2 V 1.7 x 1.25 x 0.85mm 0.85mm 1.7mm
RS Stock No. 165-7447
Mfr. Part No.BBY5702VH6327XTSA1
BrandInfineon
kr 2,033
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. 165-7448
Mfr. Part No.BBY5302VH6327XTSA1
BrandInfineon
kr 1,823
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. 626-2074
Mfr. Part No.BB202,115
BrandNXP
kr 9,578
Each (In a Pack of 10)
Units
Single Tuner, VCO 1 28.2pF 6V - 2.5 Surface Mount SOD-523 2 0.2 to 2.3V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm
RS Stock No. 166-0399
Mfr. Part No.BB145B,115
BrandNXP
kr 1,60
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
RS Stock No. 170-2060
Mfr. Part No.BB207
BrandNXP
kr 4,361
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. 166-0356
Mfr. Part No.BB181,115
BrandNXP
kr 1,186
Each (On a Reel of 3000)
Units
Single Tuner, VCO 1 8pF 30V - 12 Surface Mount SOD-523 2 0.5 → 28V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm
RS Stock No. 791-9591
Mfr. Part No.SVC704-TL-E
Brandonsemi
kr 2,231
Each (On a Tape of 20)
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. 826-9373
Mfr. Part No.BB837E6327HTSA1
BrandInfineon
kr 3,326
Each (In a Pack of 100)
Units
Single Tuner 1 6pF 30V - 10.2 Surface Mount SOD-323 2 1 → 28V 1.7 x 1.25 x 0.9mm 0.9mm 1.7mm
RS Stock No. 823-5655
Mfr. Part No.BB857H7902XTSA1
BrandInfineon
kr 1,028
Each (In a Pack of 25)
Units
Single SAT Tuners - - 30V - - Surface Mount SCD-80 2 - 1.3 x 0.8 x 0.7 (With Pin)mm 0.7mm 1.3mm
RS Stock No. 165-7472
Mfr. Part No.BB639E7904HTSA1
BrandInfineon
kr 0,714
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. 626-1958
Mfr. Part No.BB156,115
BrandNXP
kr 8,371
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. 626-2080
Mfr. Part No.BB208-03,115
BrandNXP
kr 6,458
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. 890-2579
Mfr. Part No.1SV229(TPH3,F)
BrandToshiba
kr 2,492
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. 166-1216
Mfr. Part No.BBY40,215
BrandNXP
kr 2,179
Each (On a Reel of 3000)
Units
Single Tuner 1 26pF 30V - 5 Surface Mount SOT-23 (TO-236AB) 3 3 → 25V 3 x 1.4 x 1mm 1mm 3mm
RS Stock No. 626-1992
Mfr. Part No.BB181,115
BrandNXP
kr 4,037
Each (In a Pack of 30)
Units
Single Tuner, VCO 1 8pF 30V - 12 Surface Mount SOD-523 2 0.5 to 28V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm
RS Stock No. 826-9314
Mfr. Part No.BB814E6327GR1HTSA1
BrandInfineon
kr 0,66
Each (In a Pack of 100)
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. 218-6282
Mfr. Part No.BBY5502VH6327XTSA1
BrandInfineon
kr 2,159
Each (In a Pack of 50)
Units
Single - 1 6pF 16V - - - SC79 2 - - - -
RS Stock No. 892-2393
Mfr. Part No.BB535E7904HTSA1
BrandInfineon
kr 1,224
Each (In a Pack of 120)
Units
Single UHF-TV Tuner 1 1.9pF 30V - 8.2 Surface Mount SOD-323 2 1 → 28V 1.7 x 1.25 x 1mm 1mm 1.7mm