Skyworks Solutions Inc. SMV1470-004LF
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- SMV1470-004LF
- Skyworks Solutions Inc.
- DIODE VARACTOR
- Diodes - Variable Capacitance (Varicaps, Varactors)
- SMV1470-004LF Datasheet
- TO-236-3, SC-59, SOT-23-3
- -Reel®
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Lead free / RoHS Compliant - 1882
- Spot Inventory / Athorized Dstributor / Factory Excess Stock
- 1 year quality assurance 》
- Click to get rates
What is SMV1470-004LF
Skyworks Solutions Inc. Part Number SMV1470-004LF（Diodes - Variable Capacitance (Varicaps, Varactors)）, developed and manufactured by Skyworks Solutions Inc., distributed globally by Jinftry. We distribute various electronic components from world-renowned brands and provide one-stop services, making us a trusted global electronic component distributor.
SMV1470-004LF is one of the part numbers distributed by Jinftry, and you can learn about its specifications/configurations, package/case, Datasheet, and other information here. Electronic components are affected by supply and demand, and prices fluctuate frequently. If you have a demand, please do not hesitate to send us an RFQ or email us immediately [email protected] Please inquire about the real-time unit price, Data Code, Lead time, payment terms, and any other information you would like to know. We will do our best to provide you with a quotation and reply as soon as possible.
SMV1470-004LF Specifications
- Part NumberSMV1470-004LF
- CategoryDiodes - Variable Capacitance (Varicaps, Varactors)
- ManufacturerSkyworks Solutions Inc.
- DescriptionDIODE VARACTOR
- Package-Reel®
- Series-
- Operating Temperature-55°C ~ 125°C (TJ)
- Mounting TypeSurface Mount
- Package / CaseTO-236-3, SC-59, SOT-23-3
- Supplier Device PackageSOT-23-3
- Diode Type1 Pair Common Cathode
- Voltage - Peak Reverse (Max)10 V
- Capacitance @ Vr, F14.8pF @ 4.5V, 1MHz
- Capacitance Ratio6
- Capacitance Ratio ConditionC1/C5
- Q @ Vr, F-
Application of SMV1470-004LF
SMV1470-004LF Datasheet
SMV1470-004LF Datasheet , -Reel®,-55°C ~ 125°C (TJ),Surface Mount,TO-236-3, SC-59, SOT-23-3,SOT-23-3,1 Pair Common Cathode,10 V,14.8pF @ 4.5V, 1MHz,6,C1/C5
SMV1470-004LF Classification
Diodes - Variable Capacitance (Varicaps, Varactors)
FAQ about Diodes - Variable Capacitance (Varicaps, Varactors)
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1. What is a variable capacitor?
Variable capacitor, also known as variable capacitor, is a capacitor whose capacitance can be adjusted within a certain range. Its working principle is to change the capacitance value by changing the relative effective area or distance between the pole pieces. Common variable capacitors include mechanical, electronic and piezoelectric types.
Classification
Mechanical variable capacitor: Change the capacitance value by rotating or moving the metal plate.
Electronic variable capacitor: Change the capacitance value by changing the reverse voltage of the PN junction.
Piezoelectric variable capacitor: Use certain crystal materials to produce polarization when subjected to mechanical stress, thereby changing the capacitance value. -
2. What effect does capacitance have on diodes?
The effect of capacitance on diodes is mainly reflected in the following aspects:
Capacitance effect: Diodes have capacitance effect, mainly including barrier capacitance (CB) and diffusion capacitance (CD). Barrier capacitance is formed by the difference in conductivity on both sides of the PN junction, and its capacitance changes with the applied voltage. Diffusion capacitance is the charge accumulation effect formed by the diffusion of carriers in the P region and the N region when the diode is forward biased.
Equivalent circuit: In order to simplify circuit analysis, the diode can be simulated by an equivalent circuit. In a DC circuit, the ideal diode model can be regarded as an ideal switch, which is equivalent to a closed switch when forward biased and an open switch when reverse biased.
Series effect: When a capacitor is connected in series with a diode, a short current spike may occur, especially in a DC circuit. But this usually does not directly cause the capacitor to burn out unless the current is very large or the capacitor quality is very poor. In an AC circuit, the impedance of the capacitor changes with frequency, which may affect the working state of the circuit, but will not directly cause the capacitor to burn out.
Parallel effect: When a capacitor is connected in parallel with a diode, the connection of the capacitor does not interfere with the normal operation of the diode, nor does it directly cause the capacitor to burn out. In this case, the capacitor mainly plays a filtering or energy storage role. -
3. What is the use of varactor diodes?
The main uses of varactor diodes include the following aspects:
High-frequency tuning and communication: The varactor diode uses the characteristics of the PN junction capacitance changing with the applied voltage to be used as a variable capacitor in high-frequency tuning and communication circuits to achieve functions such as automatic tuning, frequency modulation, and phase modulation.
Wireless communication: In wireless communication systems, varactors are often used in tuning circuits, such as receivers and transmitters that tune VHF and UHF bands. By changing the reverse bias voltage, the resonant frequency of the circuit can be adjusted, thereby achieving frequency selection.
RF signal processing: In RF signal processing, varactors are used to achieve frequency modulation and phase modulation. They can be used as part of a tunable filter to select signals of a specific frequency.
Oscillator: In an LC oscillator, a varactor can be used as a tunable capacitor to adjust the oscillation frequency. This application is very common in radio equipment.
Automatic gain control: In some communication systems, varactors can be used for automatic gain control to adapt to different signal strengths by adjusting the gain of the circuit.
Tuning circuit: In a tuning circuit, a varactor can be used to adjust the resonant frequency of the circuit to match different signal sources.
Analog multiplier: Varactors are used as variable capacitors in analog multipliers to achieve signal multiplication.
Electronic music equipment: In electronic music equipment, varactors can be used to modulate sound and produce special sound effects.
Precision Electronics: In precision electronic devices, varactor diodes can be used to achieve precise voltage control and signal processing.
Sensors: In some types of sensors, varactor diodes can be used to detect physical quantities such as pressure and temperature, reflecting changes in the measured value by changing the capacitance value.
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