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. 179-1056
Mfr. Part No.BB135,115
BrandNXP
PHP6.786
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. 626-1891
Mfr. Part No.BB135,115
BrandNXP
PHP16.569
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. 626-2046
Mfr. Part No.BB207
BrandNXP
PHP21.878
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. 170-2060
Mfr. Part No.BB207
BrandNXP
PHP27.426
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. 165-7472
Mfr. Part No.BB639E7904HTSA1
BrandInfineon
PHP3.549
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. 653-1415
Mfr. Part No.BB639E7904HTSA1
BrandInfineon
PHP19.709
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. 892-2393
Mfr. Part No.BB535E7904HTSA1
BrandInfineon
PHP9.524
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. 145-9549
Mfr. Part No.BB535E7904HTSA1
BrandInfineon
PHP6.405
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. 436-7874
Mfr. Part No.BBY40,215
BrandNXP
PHP28.139
Each (In a Pack of 10)
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. 145-9418
Mfr. Part No.BB439E6327HTSA1
BrandInfineon
PHP18.111
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. 178-7396
Mfr. Part No.BB814E6327GR1HTSA1
BrandInfineon
PHP7.413
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. 166-1216
Mfr. Part No.BBY40,215
BrandNXP
PHP13.532
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. 110-9106
Mfr. Part No.BB439E6327HTSA1
BrandInfineon
PHP34.352
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. 166-1005
Mfr. Part No.BB639CE7904HTSA1
BrandInfineon
PHP5.912
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. 826-9314
Mfr. Part No.BB814E6327GR1HTSA1
BrandInfineon
PHP14.511
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. 161-1535
Mfr. Part No.5.0SMDJ26A
BrandBourns
PHP85.374
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. 890-2579
Mfr. Part No.1SV229(TPH3,F)
BrandToshiba
PHP14.644
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
New
RS Stock No. 218-6284
Mfr. Part No.BBY5802VH6327XTSA1
BrandInfineon
PHP8.598
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
PHP25.67
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
New
RS Stock No. 218-6283
Mfr. Part No.BBY5802VH6327XTSA1
BrandInfineon
PHP8.589
Each (On a Reel of 3000)
units
Single - 1 4.7pF 10V - - - TSLP-2-1 - - - - -