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Diodes - Variable Capacitance (Varicaps, Varactors)

The ZMV835ATA is a type of variable capacitance technology based on a three-terminal adjustable diode. It is a translinear capacitor array consisting of matched transistors, diodes and varistor connected in parallel. This unique combination ensures greater precision and reliability, ensuring accuracy and high frequency stability. This device is especially useful in applications that require a range of capacitances and a relatively constant capacitance over varying frequencies.

Technology & Applications

The ZMV835ATA offers great performance and reliability characteristics. It can be used in products requiring oscillator, adjustable filter, delay timing, and transient absorber, for applications in doppler radar and pulse forming networks. It has low noise and high speed, with low leakage current.

Mechanics and Working Principle

The ZMV835ATA is housed in a TO-92 case, on which the three terminals are placed and it is dosed with an epoxy resin to form an indissoluble seal. Its principle of operation is based on the current conduction through a two layer, three terminal structure. Its working principle is based on the current flow through a varistor, which comprises a fixed capacitor in parallel with a diode, forming a diode-capacitor network. This diode-capacitor network controls the capacitance of the whole circuit which is determined by the current flow through the varistor. The range of capacitance is determined by the amplitude of the current applied.

The ZMV835ATA variable capacitance technology is highly efficient and effective in applications requiring frequency feedback or waveform shaping. The device ensures accuracy and high frequency stability and is suitable for use in a number of applications including oscillator, adjustable filter, delay timing and transient absorber. Due to its high reliability and good scalability, it is also commonly used in doppler radar and military applications where the highest accuracy and greatest demand for reliability are of utmost importance. The device has a great deal of application in industries where its low noise and fast reactivity are highly beneficial.

Conclusion

The ZMV835ATA is a variable capacitance device based on a three-terminal adjustable diode. It uses an array of matched transistors, diodes and varistor to provide greater precision and reliability, ensuring accuracy and high frequency stability. Its low noise and fast performance makes it suitable for a wide range of applications including oscillator, adjustable filter, delay timing, and transient absorber. It is able to offer precise and dependable performance in extremely demanding environments, delivering unsurpassed value and performance.

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