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. 857-8129
Mfr. Part No.BBY6605WH6327XTSA1
BrandInfineon
TWD7
Each (On a Reel of 3000)
units
Common Cathode VCO in Mobile Communication 2 12pF 12V - 5 SOT-323 (SC-70) 3 1 V, 4.5 V 2 x 1.25 x 0.8mm 0.8mm 2mm +150 °C
RS Stock No. 890-2581
Mfr. Part No.1SV305,H3F(T
BrandToshiba
TWD5
Each (In a Pack of 25)
units
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
RS Stock No. 626-1891
Mfr. Part No.BB135,115
BrandNXP
TWD2
Each (In a Pack of 25)
units
Single Tuner, VCO 1 17.5pF 30V - 8.9 SOD-323 2 0.5 to 28V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm +125 °C
RS Stock No. 890-2588
Mfr. Part No.1SV285(TPH3,F)
BrandToshiba
TWD6
Each (In a Pack of 25)
units
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
RS Stock No. 166-1048
Mfr. Part No.BB85702VH7902XTSA1
BrandInfineon
TWD4
Each (On a Reel of 3000)
units
Single SAT Tuners 1 0.45pF 30V - 9.7 SC-79 2 1 V, 28 V 1.2 x 0.8 x 0.42mm 0.42mm 1.2mm +150 °C
RS Stock No. 110-7130
Mfr. Part No.BB85702VH7902XTSA1
BrandInfineon
TWD5
Each (In a Pack of 100)
units
Single SAT Tuners 1 0.45pF 30V - 9.7 SC-79 2 1 V, 28 V 1.2 x 0.8 x 0.42mm 0.42mm 1.2mm +150 °C
RS Stock No. 826-9421
Mfr. Part No.BBY6502VH6327XTSA1
BrandInfineon
TWD6
Each (In a Pack of 100)
units
Single TCXO, Tune, VCXO 1 28.2pF 15V - 4.55 SC-79 2 0.3 → 4.7V 1.2 x 0.8 x 0.55mm 0.55mm 1.2mm +150 °C
RS Stock No. 791-9572
Mfr. Part No.SVC230-TB-E
TWD8
Each (In a Pack of 20)
units
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
RS Stock No. 110-9106
Mfr. Part No.BB439E6327HTSA1
BrandInfineon
TWD13
Each (On a Tape of 40)
units
Single Tuner 1 4.3pF 28V - 5 SOD-323 2 - 1.7 x 1.25 x 0.85mm 0.85mm 1.7mm +125 °C
RS Stock No. 626-2080
Mfr. Part No.BB208-03,115
BrandNXP
TWD16
Each (In a Pack of 10)
units
Single TCXO, Tune, VCXO 1 19.9pF 10V - 3.7 SOD-323 2 1 to 7.5V 1.8 x 1.35 x 1.05mm 1.05mm 1.8mm +125 °C
RS Stock No. 166-1005
Mfr. Part No.BB639CE7904HTSA1
BrandInfineon
TWD2
Each (On a Reel of 3000)
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
RS Stock No. 823-5655
Mfr. Part No.BB857H7902XTSA1
BrandInfineon
TWD7
Each (In a Pack of 25)
units
Single SAT Tuners - - 30V - - SCD-80 2 - 1.3 x 0.8 x 0.7 (With Pin)mm 0.7mm 1.3mm +150 °C
RS Stock No. 761-6810
Mfr. Part No.RKV502KJ#P1Q
TWD1
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. 826-9399
Mfr. Part No.BBY6602VH6327XTSA1
BrandInfineon
TWD7
Each (In a Pack of 100)
units
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
RS Stock No. 165-5623
Mfr. Part No.BBY5303WE6327HTSA1
BrandInfineon
TWD5
Each (On a Reel of 3000)
units
Single Tuner, VCO 1 4.8pF 6V - 1.8 SOD-323 2 1 → 3V 1.7 x 1.25 x 0.9mm 0.9mm 1.7mm +125 °C
RS Stock No. 791-9588
Mfr. Part No.SVC272-TL-E
TWD10
Each (On a Tape of 20)
units
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
RS Stock No. 162-9648
Mfr. Part No.SVC270-TL-E
TWD6
Each (On a Reel of 3000)
units
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
RS Stock No. 166-0356
Mfr. Part No.BB181,115
BrandNXP
TWD3
Each (On a Reel of 3000)
units
Single Tuner, VCO 1 8pF 30V - 12 SOD-523 2 0.5 → 28V 1.25 x 0.85 x 0.65mm 0.65mm 1.25mm +150 °C
RS Stock No. 162-9645
Mfr. Part No.SVC230-TB-E
TWD8
Each (On a Reel of 3000)
units
Common Cathode Tuner 2 25.1pF 16V 100 1.65 SOT-23 3 2 → 8V 2.9 x 1.5 x 1.1mm 1.1mm 2.9mm +125 °C
RS Stock No. 161-1528
Mfr. Part No.5.0SMDJ26A
BrandBourns
TWD31
Each (On a Reel of 3000)
units
Single - 1 - 26V - - DO-214AB (SMC) 2 - 7.11 x 6.22 x 2.31mm 2.31mm 7.11mm +150 °C