SMV1705-040LF Discrete Semiconductor Products

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

SMV1705-040LF Application Field and Working Principle

Variable Capacitance (Varicaps, Varactors) diodes are featured by their capability to modulate the capacitance as a response to applied voltage. These devices are made of a semiconductor junction of two layers, such as a P-N junction, and a central gate, that results in the exchange between capacitances at different voltages. As in the case of the SMV1705-040LF diode, this exchange is between low and high-frequency ranges.

The application field of the SMV1705-040LF Varicaps is wide. Generally, these diodes are employed in oscillation, communication and RF amplifying circuits for their property of controlling frequency and phase. Additionally, this particular Varicap is used in many fields like industrial, medical, automotive and consumer electronics. More specifically, this diode is employed as a frequency adjustment element, a phase adjustment device in PLL circuits, a tuner oscillator, a filter and a voltage regulator.

The SMV1705-040LF Varicap device is rated with a maximum DC voltage of 40V, corresponding to a capacitance of 15.9pF. At the same time, its capacitance variations of ±18% can be obtained between 0 and 10V. This remarkable property allows the tuning of frequency-related parameters in a low range under 10V, as limitation set by its maximum applied voltage. Therefore, this characteristic is also employed in resonance circuits, as a device of high-precision accuracy.

As for its operating principle, the SMV1705-040LF Varicap acts as a semiconductor capacitor, where the central gate provides the path between the junction of P and N layers. Initially, at 0V applied voltage the capacitance is at its maximum, being dependent on the geometry of the junction layers and the material used. When a voltage is applied, this results in the dielectric field being modified, causing the capacitance to decrease as a consequence.

Furthermore, this device features a quite wide temperature range, operating in temperatures between -55 ˚C and + 135 ˚C. This allows these diodes to be used in a variety of environments, especially in those that require endurance in high and low temperatures.

To conclude, the SMV1705-040LF Varicaps device is essential in the construction of oscillation, communication and RF amplification circuits. With its versatile characteristics and wide application field this diode may be considered a great alternative for the development of many projects in the industry.

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