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Varactor Diodes

The Varactor Diode gets its name from the variable nature of the diode its self. It is a special type of diode designed for variable capacitance.
How do they work?
In order to achieve a specific variance in capacitance, the 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.
Features and benefits:
• Very small and light weight
• Little noise from the component
• Very low cost
• Increase in a reverse bias will increase the capacitance
• Very easy to mount and replace
• High capacitance ratios
• Very low resistance
Where might I use one?
• Satellites
• TV tuners
• DVD devices
• RF Tuning
• Frequency synthesizers
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Part Details Brand Stock 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 Width
Dual Var. Capacitance Diode 20V SOT23
  • € 0.10
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Infineon 0 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 1.3mm
NXP BB135,115 Varactor, 17.5pF min, 8.9:1 Tuning Ratio, 30V, 2-Pin SOD-323
  • € 0.10
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  • RS Stock No. 179-1056
  • Brand NXP
  • Mfr. Part No. BB135,115
NXP 0 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 1.35mm
NXP BB202,115 Varactor, 28.2pF min, 2.5:1 Tuning Ratio, 6V, 2-Pin SOD-523
  • € 0.29
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  • RS Stock No. 179-1058
  • Brand NXP
  • Mfr. Part No. BB202,115
NXP 0 Single Tuner, VCO 1 28.2pF 6V - 2.5 SOD-523 2 0.2 → 2.3V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm +85 °C 0.85mm
Silicon Tuning Diode 30V SOD323
  • € 0.12
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Infineon 0 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 1.25mm
Toshiba 1SV229(TPH3,F) Varactor, 2-Pin SOD-323
  • € 0.15
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Toshiba 0 Single - 1 - - - - SOD-323 2 - 1.7 x 1.25 x 0.9mm 0.9mm 1.7mm +125 °C 1.25mm
Toshiba 1SV285(TPH3,F) Varactor, 1.85pF min, 10V, 2-Pin 1-1G1A
  • € 0.17
  • Each (On a Reel of 4000)
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Toshiba 0 Single UHF Band Radio 1 1.85pF 10V - - 1-1G1A 2 1 → 4V 1.2 x 0.8 x 0.6mm 0.6mm 1.2mm +125 °C 0.8mm
Toshiba 1SV305,H3F(T Varactor, 5.3pF min, 10V, 2-Pin 1-1G1A
  • € 0.17
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Toshiba 0 Single VHF Band Radio 1 5.3pF 10V - - 1-1G1A 2 1 → 4V 1.2 x 0.8 x 0.6mm 0.6mm 1.2mm +125 °C 0.8mm
ON Semiconductor SVC704-TL-E Varactor, 3.4pF min, 6:1 Tuning Ratio, 16V, 3-Pin MCPH ON Semiconductor 14500 Single VCO 1 3.4pF 16V - 6 MCPH 3 1 → 7V 2 x 1.6 x 0.85mm 0.85mm 2mm +150 °C 1.6mm
Infineon BBY5702VH6327XTSA1 Varactor, 4pF min, 3:1 Tuning Ratio, 10V, 2-Pin SC-79 Infineon 11120 Single VCO 1 4pF 10V - 3 SC-79 2 1 → 4V 1.2 x 0.8 x 0.55mm 0.55mm 1.2mm +125 °C 0.8mm
Infineon BB535E7904HTSA1 Varactor, 1.9pF min, 8.2:1 Tuning Ratio, 30V, 2-Pin SOD-323 Infineon 6960 Single UHF-TV Tuner 1 1.9pF 30V - 8.2 SOD-323 2 1 → 28V 1.7 x 1.25 x 1mm 1mm 1.7mm +150 °C 1.25mm
Infineon BB66402VH7902XTSA1 Varactor Diode, 2.4pF min, 15:1 Tuning Ratio, 30V, 2-Pin SC-79 Infineon 4800 Single VHF TV Tuner 1 2.4pF 30V - 15 SC-79 2 28V 1.2 x 0.8 x 0.55mm 0.55mm 1.2mm +150 °C 0.8mm
Infineon BB914E6327HTSA1 Dual Common Cathode Varactor Diode, 17.6pF min, 2.28:1 Tuning Ratio, 18V, 3-Pin SOT-23 Infineon 4700 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 1.3mm
NXP BB156,115 Varactor, 14.4pF min, 2.7:1 Tuning Ratio, 10V, 2-Pin SOD-323
  • RS Stock No. 626-1958
  • Brand NXP
  • Mfr. Part No. BB156,115
NXP 3330 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 1.35mm
ON Semiconductor SVC230-TB-E Dual Common Cathode Varactor, 25.1pF min, 1.65:1 Tuning Ratio, 16V, 3-Pin SOT-23 ON Semiconductor 2980 Common Cathode Tuner 2 25.1pF 16V 100 1.65 SOT-23 3 2 to 8V 2.9 x 1.5 x 1.1mm 1.1mm 2.9mm +125 °C 1.5mm
Infineon BB814E6327GR1HTSA1 Dual Common Cathode Varactor Diode, 43pF min, 2.05:1 Tuning Ratio, 18V, 3-Pin SOT-23 Infineon 2900 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 1.3mm
ON Semiconductor SVC270-TL-E Dual Common Cathode Varactor, 25.1pF min, 1.65:1 Tuning Ratio, 16V, 3-Pin MCPH ON Semiconductor 2860 Common Cathode Tuner 2 25.1pF 16V 100 1.65 MCPH 3 2 → 8V 2 x 1.6 x 0.85mm 0.85mm 2mm +150 °C 1.6mm
NXP BB208-02,115 Varactor, 19.9pF min, 3.7:1 Tuning Ratio, 10V, 2-Pin SOD-523
  • RS Stock No. 626-2068
  • Brand NXP
  • Mfr. Part No. BB208-02,115
NXP 2750 Single TCXO, Tune, VCXO 1 19.9pF 10V - 3.7 SOD-523 2 1 to 7.5V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm +125 °C 0.85mm
ON Semiconductor SVC272-TL-E Dual Common Cathode Varactor, 14.07pF min, 2.3:1 Tuning Ratio, 16V, 3-Pin MCPH ON Semiconductor 2620 Common Cathode Tuner 2 14.07pF 16V 150 2.3 MCPH 3 2 → 8V 2 x 1.6 x 0.85mm 0.85mm 2mm +125 °C 1.6mm
Infineon BBY6602VH6327XTSA1 Varactor Diode, 66pF min, 5:1 Tuning Ratio, 12V, 2-Pin SC-79 Infineon 2500 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 0.8mm
Infineon BB837E6327HTSA1 Varactor Diode, 6pF min, 10.2:1 Tuning Ratio, 30V, 2-Pin SOD-323 Infineon 2400 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 1.25mm
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