SMV1249-079LF Allicdata Electronics

SMV1249-079LF Discrete Semiconductor Products

Allicdata Part #:

863-1137-2-ND

Manufacturer Part#:

SMV1249-079LF

Price: $ 0.00
Product Category:

Discrete Semiconductor Products

Manufacturer: Skyworks Solutions Inc.
Short Description: DIODE VARACTOR 15V 20MA SC-79
More Detail: Varactor Single 15V Surface Mount SC-79
DataSheet: SMV1249-079LF datasheetSMV1249-079LF Datasheet/PDF
Quantity: 117000
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Stock 117000Can Ship Immediately
Specifications
Series: --
Packaging: Tape & Reel (TR) 
Lead Free Status / RoHS Status: --
Part Status: Active
Moisture Sensitivity Level (MSL): --
Capacitance @ Vr, F: 2.8pF @ 4.7V, 50MHz
Capacitance Ratio: 12.1
Capacitance Ratio Condition: C0.3/C4.7
Voltage - Peak Reverse (Max): 15V
Diode Type: Single
Q @ Vr, F: 600 @ 3V, 50MHz
Operating Temperature: -55°C ~ 125°C (TJ)
Mounting Type: Surface Mount
Package / Case: SC-79, SOD-523
Supplier Device Package: SC-79
Description

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The SMV1249-079LF diode is a device designed to facilitate the application of varied electrical signals within a specified range. It is one of many types of Diodes, more specifically a Varicap, Varactor, or Variable Capacitance Diode. This type of diode is utilized in devices that require frequency modulation, such as radio receivers and digital signal processors.

Working Principle

A Varicap is designed with a junction of two layers of semiconductors, one positively charged and one negatively charged. The application of a voltage creates an electric field between the two layers, which increases the capacitance of the diode. By adjusting the amount of voltage applied to the diode, the capacitance can be varied which in turn modifies the frequency of the signal being processed.

Application Field

Varicaps are found in numerous types of electronics, particularly radios, television receivers, and computer peripherals. The basic function is to allow frequency modulation by adjusting the capacitance between two layers of semiconductors. As the capacitance increases or decreases within the diode, the frequency of the signal is altered. This adjustable diode is especially useful in RF communications, allowing for the data output of radio transmitters to be altered according to the voltage applied to the device.

In addition to frequency modulation, Varicaps also have uses in power control and regulation. When adjusting the capacitance of the diode, the current draw from the source can be varied, increasing or decreasing the amount of power being drawn. This can be used for applications in industry and the automotive sector to control energy levels, or to limit the amount of current being drawn from an array of batteries.

Conclusion

The SMV1249-079LF Varicap is a device used in many applications to control the frequency of a signal and vary the capacitance between two layers of semiconductors in order to regulate the power draw or signal output. This type of diode is often found in RF receivers, radios, television receivers, and computer peripherals, as well as in industrial and automotive uses.

The specific data is subject to PDF, and the above content is for reference

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