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. 178-7399
Mfr. Part No.BB837E6327HTSA1
BrandInfineon
kr 1,566
Each (On a Reel of 3000)
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. 626-2046
Mfr. Part No.BB207
BrandNXP
kr 2,991
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. 626-2074
Mfr. Part No.BB202,115
BrandNXP
kr 5,49
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. 179-1056
Mfr. Part No.BB135,115
BrandNXP
kr 0,929
Each (On a Reel of 3000)
Units
Single Tuner, VCO 1 17.5pF 30V - 8.9 Surface Mount SOD-323 2 0.5 → 28V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm
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. 145-9549
Mfr. Part No.BB535E7904HTSA1
BrandInfineon
kr 0,696
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. 161-1535
Mfr. Part No.5.0SMDJ26A
BrandBourns
kr 15,894
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. 791-9576
Mfr. Part No.SVC236-TB-E
Brandonsemi
kr 5,487
Each (In a Pack of 15)
Units
Common Cathode Tuner 2 14.44pF 16V 70 5 Surface Mount SOT-23 3 1 to 6.5V 2.9 x 1.5 x 1.1mm 1.1mm 2.9mm
RS Stock No. 626-1992
Mfr. Part No.BB181,115
BrandNXP
kr 2,678
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. 145-9418
Mfr. Part No.BB439E6327HTSA1
BrandInfineon
kr 2,697
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. 505-8521
Mfr. Part No.BB640E6327HTSA1
BrandInfineon
kr 3,778
Each (In a Pack of 20)
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. 752-7899
Mfr. Part No.BBY5302VH6327XTSA1
BrandInfineon
kr 3,859
Each (In a Pack of 10)
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. 166-0534
Mfr. Part No.BB208-03,115
BrandNXP
kr 1,677
Each (On a Reel of 3000)
Units
Single TCXO, Tune, VCXO 1 19.9pF 10V - 3.7 Surface Mount SOD-323 2 1 → 7.5V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm
New
RS Stock No. 218-6282
Mfr. Part No.BBY5502VH6327XTSA1
BrandInfineon
kr 1,55
Each (In a Pack of 50)
Units
Single - 1 6pF 16V - - - SC79 2 - - - -
RS Stock No. 892-2393
Mfr. Part No.BB535E7904HTSA1
BrandInfineon
kr 1,663
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
RS Stock No. 166-1005
Mfr. Part No.BB639CE7904HTSA1
BrandInfineon
kr 0,718
Each (On a Reel of 3000)
Units
Single Tuner 1 2.4pF 30V - 9.5 Surface Mount SOD-323 2 - 1.7 x 1.25 x 0.85mm 0.85mm 1.7mm
RS Stock No. 178-7396
Mfr. Part No.BB814E6327GR1HTSA1
BrandInfineon
kr 1,375
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
New
RS Stock No. 218-6284
Mfr. Part No.BBY5802VH6327XTSA1
BrandInfineon
kr 1,55
Each (In a Pack of 50)
Units
Single - 1 4.7pF 10V - - - TSLP-2-1 - - - - -
RS Stock No. 890-2588
Mfr. Part No.1SV285(TPH3,F)
BrandToshiba
kr 1,144
Each (In a Pack of 25)
Units
Single UHF Band Radio 1 1.85pF 10V - - Surface Mount 1-1G1A 2 1 → 4V 1.2 x 0.8 x 0.6mm 0.6mm 1.2mm
RS Stock No. 890-2579
Mfr. Part No.1SV229(TPH3,F)
BrandToshiba
kr 2,058
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