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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Description Price 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
RS Stock No. 826-9005
Mfr. Part No.BB914E6327HTSA1
BrandInfineon
$0.251
Each (In a Pack of 100)
units
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
RS Stock No. 761-6810
Mfr. Part No.RKV502KJ#P1Q
$0.031
Each (In a Pack of 15)
units
Single Tuner 1 41.5pF 35V - 14.5 SC-79 2 - 0.9 x 1.3 x 0.7mm 0.7mm 0.9mm +150 °C
RS Stock No. 178-7396
Mfr. Part No.BB814E6327GR1HTSA1
BrandInfineon
$0.171
Each (On a Reel of 3000)
units
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
RS Stock No. 161-1535
Mfr. Part No.5.0SMDJ26A
BrandBourns
$2.674
Each (In a Pack of 5)
units
Single - 1 - 26V - - DO-214AB (SMC) 2 - 7.11 x 6.22 x 2.31mm 2.31mm 7.11mm +150 °C
RS Stock No. 110-9116
Mfr. Part No.BB639CE7904HTSA1
BrandInfineon
$0.139
Each (In a Pack of 150)
units
Single Tuner 1 2.4pF 30V - 9.5 SOD-323 2 - 1.7 x 1.25 x 0.85mm 0.85mm 1.7mm +150 °C
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Variable Capacitance Diodes, commonly known as Varicap, Varactor ...
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Variable Capacitance Diodes, commonly known as Varicap, Varactor or Tuning diodes, are useful in many applications where a change in capacitance derived from a change in voltage is required. They are suitable for use in a wide range of application, ...
Variable Capacitance Diodes, commonly known as Varicap, Varactor ...
Description:
Variable Capacitance Diodes, commonly known as Varicap, Varactor or Tuning diodes, are useful in many applications where a change in capacitance derived from a change in voltage is required. They are suitable for use in a wide range of application, ...
Variable Capacitance Diodes, commonly known as Varicap, Varactor ...
Description:
Variable Capacitance Diodes, commonly known as Varicap, Varactor or Tuning diodes, are useful in many applications where a change in capacitance derived from a change in voltage is required. They are suitable for use in a wide range of application, ...
Variable Capacitance Diodes, commonly known as Varicap, Varactor ...
Description:
Variable Capacitance Diodes, commonly known as Varicap, Varactor or Tuning diodes, are useful in many applications where a change in capacitance derived from a change in voltage is required. They are suitable for use in a wide range of applications, ...