ZC835BTC

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Capacitance @ Vr, F:	71.4pF @ 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:	ZC835B

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Variable Capacitance (Varicaps, Varactors)

The general purpose of Variable Capacitance (Varicaps, Varactors) is to alter the capacitance of a circuit dynamically which allows it to be used in a variety of applications. One such device, ZC835BTC, is a high-frequency, low-noise, low-power Varactor diode from Panasonic. In this article, we will look at the different possible applications of the ZC835BTC and also see how it works.

Applications of ZC835BTC

The ZC835BTC is a versatile device which can be used in a wide range of applications. It has a wide variety of features like low capacitance coefficient, low noise operation, superelevation, high-frequency switching operations and small package size. Because of all these features, the ZC835BTC can be used in a range of applications. The first application of the ZC835BTC is a frequency synthesizer. In this application, the ZC835BTC can be used to generate a steady frequency output that can be used to control high-frequency communications. This is done by altering the capacitance of the ZC835BTC which in turn changes the frequency of the output signal. The second application of the ZC835BTC is a voltage-controlled oscillator (VCO). A VCO is an electronic circuit that is used to generate an oscillating signal at a specific frequency by changing the voltage applied to the device. The ZC835BTC can be used in such circuits as it is capable of fast switching and low capacitance coefficient, making it suitable for VCO applications. The third application of the ZC835BTC is in mixer circuits. Mixer circuits are used to combine two or more signals of different frequencies and amplitudes and produce an output signal that contains the sum of the input signals. The ZC835BTC can be used in mixer circuits due to its low noise operation and small package size which makes it ideal for this application. Finally, the ZC835BTC can also be used in RF attenuator circuits. An attenuator circuit is used to reduce the amplitude of a signal while preserving the frequency. The ZC835BTC is suitable for this application due to its high speed switching capabilities.

Working Principle of ZC835BTC

The ZC835BTC is a Varactor diode and its working principle is based on the reverse capacitance effect. When a reverse voltage is applied to the diode, it causes an increase in the depletion width of the semiconductor junction which in turn results in a decrease in capacitance. This decrease in capacitance is what is used in the various applications of the ZC835BTC. To understand the working principle of the ZC835BTC, it is important to understand the PN junction of the diode. In a PN junction, when a reverse bias voltage is applied, it increases the depletion region width which in turn reduces the capacitance of the diode. This is because the depletion region acts as a dielectric between the P and N type materials and when the depletion region widens, the capacitance of the diode decreases. The ZC835BTC makes use of this reverse capacitance effect to alter the capacitance of the diode. When a reverse voltage is applied to the diode, it causes the depletion region width to increase which reduces the capacitance of the diode. The amount of decrease in capacitance depends on the magnitude of the reverse voltage applied. This is what is used in the various applications of the ZC835BTC.

Conclusion

The ZC835BTC is a versatile Varactor diode from Panasonic which can be used in a variety of applications. Its reverse capacitance effect allows it to be used as a frequency synthesizer, voltage-controlled oscillator, mixer as well as an RF attenuator. It is a low-noise, low-power device with a small package size and is capable of high-frequency switching operations.

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