ZC835ATA Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Capacitance @ Vr, F:	74.8pF @ 2V, 1MHz
Capacitance Ratio:	6.5
Capacitance Ratio Condition:	C2/C20
Voltage - Peak Reverse (Max):	25V
Diode Type:	Single
Q @ Vr, F:	100 @ 3V, 50MHz
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3
Base Part Number:	ZC835A

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ZC835ATA Variable Capacitance (Varicaps, Varactors)Varicaps, also known as varactors, are a type of diode that changes capacitance depending on the voltage applied to the diode. Varicaps are composed of a p-n junction, a dielectric, and metal plates on either side of the diode. Varicaps are used in a variety of applications, where their ability to vary capacitance in response to a varying voltage is necessary. The ZC835ATA is a popular varicap diode that has a forward voltage rating of around 5 volts, a minimum capacitance of 5 pF, and a maximum capacitance of 15 pF. It is designed for use in RF applications, such as in the oscillator circuit of an FM radio. The ZC835ATA can be used in a wide voltage range from 18V to -18V and can handle peak forward current of up to 25mA.In a varicap diode, the voltage applied to the diode affects the depletion layer, which in turn affects the capacitance. When a voltage is applied, the depletion layer increases and the capacitance of the device decreases. When the voltage is decreased, the depletion layer reduces and the capacitance increases. The capacitance can be adjusted using the applied voltage to a certain degree. The capacitance of a varicap diode can be controlled in a variety of ways, such as an external voltage source or a current source. In some applications, a DC bias voltage may be used to shift the operating range of the varicap. In addition, high frequency signals can be used to modulate the capacitor, allowing for dynamic control of the capacitance. Varicaps are used in a variety of applications, such as frequency control circuits and RF amplifiers. They can also be used in oscillator circuits, where the varicap is used to set the frequency of the oscillation. Varicap diodes can also be used in voltage controlled oscillators, where the frequency of the oscillator is controlled by varying the DC bias voltage applied to the varicap.Varicaps are also used in frequency selectors, where they can be used to select a desired frequency range out of a wide range of frequencies. Varicaps can also be used in filtering circuits, where they can be used to create various types of bandpass and notch filters.Varicaps are also useful for modulating signals, since the capacitance of a varicap can be changed in response to varying DC or AC signals. Varicaps can be used to modulate the amplitude, frequency, and phase of a signal. Varicaps are also useful for wave shaping, where the voltage waveform can be changed by varying the capacitance of the varicap.Varicaps can also be used in voltage or current controlled active filters, where they can be used to vary the frequency response of the filter in response to a varying input. Varicaps are also useful for modulation purposes, where they can be used to modulate the amplitude and/or frequency of a signal. In addition, varicaps can be used to create circuits that are used to harvest energy from an RF source.The ZC835ATA varicap diode is a popular choice for a wide variety of applications that require the ability to vary capacitance in response to a varying voltage. Its wide voltage range and peak forward current ratings make it a suitable choice for many RF applications. Varicaps offer the ability to control a signal remotely and can be used in a wide variety of different devices and applications.

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