BB639CE7908HTSA1 Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Capacitance @ Vr, F:	2.75pF @ 28V, 1MHz
Capacitance Ratio:	15.3
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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Introduction of Variable Capacitance (Varicaps, Varactors)

Variable capacitance diodes, also known as Varicaps, Varactor Diodes or tuning diodes, are semiconductors devices with a tunable capacitance and are used in numerous electronic roles, from tunable filters and various frequency control circuits to radio tuning circuits. As a voltage-controlled diode, the capacitance of varicaps varies in response to an applied voltage, while the current remains quite low.

The structure and working principle of BB639CE7908HTSA1

The BB639CE7908HTSA1 varactor diode is a PN junction capacitance type variable capacitance device designed for use in high frequency signal processing applications. It has a high junction capacitance range and a low interconnect capacitance. The BB639CE7908HTSA1 is composed of semiconductor material and is normally manufactured in a small, 8-pin plastic surface mount package.The structure of the BB639CE7908HTSA1 consists of a PN junction diode with an oxide layer on one side. A reverse biased voltage is applied to the oxide layer in order to change the capacitance of the device. The junction capacitance depends on the reverse-biased DC voltage, as well as the oxide layer\'s dielectric constant and thickness. The BB639CE7908HTSA1 is a voltage-controlled, low-current varactor diode with a low interconnect capacitance. It is typically used for high frequency signal processing applications, where it can be used to fine-tune frequency ranges and filter performance. The device is typically used in combination with a high-frequency signal processing network, providing an improved performance with greater frequency tuning capability.

Applications of BB639CE7908HTSA1

The BB639CE7908HTSA1 is a versatile and highly capable device with a wide range of versatile applications.The tunable varactor diode is particularly well-suited for applications such as high frequency signal processing, frequency stability, automatic frequency control (AFC) and tuning, frequency divider and phase shifter circuits, and filtering. It is also commonly used in oscillator, phase locked loop (PLL) and frequency synthesizer circuits. The device is also used in RF and microwave oscillator, phase shifters, and filters.The BB639CE7908HTSA1 is also applicable for frequency control, frequency synthesis, and programmable filter circuit applications such as radio frequency (RF) and microwave tuners, radio receiver and transmitter applications, and base transceiver station transceivers.

Conclusion

In conclusion, the BB639CE7908HTSA1 is a versatile, low-current varactor diode with a high capacitance range and low interconnect capacitance which is commonly used for high frequency signal processing in a wide variety of applications, from frequency control and stability to automatic frequency control, tuning, and filtering.

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