Allicdata Part #: | BB639INCT-ND |
Manufacturer Part#: |
BB639E7908 |
Price: | $ 0.00 |
Product Category: | Discrete Semiconductor Products |
Manufacturer: | Infineon Technologies |
Short Description: | DIODE VARACTOR 30V SOD-323 |
More Detail: | Varactor Single 30V Surface Mount PG-SOD323-2 |
DataSheet: | BB639E7908 Datasheet/PDF |
Quantity: | 1000 |
Lead Free Status / RoHS Status: | Contains lead / RoHS non-compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
1 +: | 0.00000 |
Series: | -- |
Packaging: | Cut Tape (CT) |
Lead Free Status / RoHS Status: | -- |
Part Status: | Obsolete |
Moisture Sensitivity Level (MSL): | -- |
Capacitance @ Vr, F: | 2.9pF @ 28V, 1MHz |
Capacitance Ratio: | 14.7 |
Capacitance Ratio Condition: | C1/C28 |
Voltage - Peak Reverse (Max): | 30V |
Diode Type: | Single |
Q @ Vr, F: | -- |
Operating Temperature: | -55°C ~ 150°C (TJ) |
Mounting Type: | Surface Mount |
Package / Case: | SC-76, SOD-323 |
Supplier Device Package: | PG-SOD323-2 |
Base Part Number: | BB639 |
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Diodes - Variable Capacitance (Varicaps, Varactors)
The BB639E7908 is an example of a Variable Capacitance diode. It is also sometimes referred to as a Varicap diode, Varactor diode or Tuning diode. A Variable Capacitance diode is a semiconductor device that is used to store charge and can have its capacitance varied over a wide range by the application of an external voltage.
Application Field
Variable capacitance diodes are widely used in radio circuitry in a variety of applications. These diodes are commonly used in tuning circuits and oscillators, as well as VCOs (Voltage Controlled Oscillators). They are usually used in receiver and transmitter circuits where they can act as tunable filters. These diodes are used to achieve voltage dependent capacitance variation, so they can be used in RF (radio frequency) amplifiers, PLLs (Phase Locked Loops) as well as low noise amplifiers. Variable capacitance diodes also have some applications in various types of analog applications. This includes voltage controlled oscillators, AM receivers, FM receivers, and so on.
Working Principle
A variable capacitance diode\'s working is based on the variable resistors or variable capacitors, which is used to control the amount of capacitance stored. It works on the principle that when the applied voltage increases, the device\'s capacitance also increases. This makes variable capacitance diodes very useful for tuning and frequency control applications. When a voltage is applied to the diode, the depletion region on the diode widens and thus more capacitance is stored. As the voltage is varied, the capacitance makes corresponding variations. The amount of variation in the capacitance depends on the doping concentration of the diode.
Conclusion
The BB639E7908 Variable Capacitance diode is a semiconductor device with an adjustable capacitance. It is widely used for tuning applications in radio circuitry, such as in receiver and transmitter circuits. It works on the principle that when a voltage is applied to the diode, the depletion region on the diode widens and thus more capacitance is stored. Its many applications make Variable Capacitance diodes an essential component in radio technology.
The specific data is subject to PDF, and the above content is for reference
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