CZRQR18VB-HF

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CZRQR18VB-HF Application Field and Working Principle

Diodes are semiconductor devices that allow current to flow in one direction and block it in the opposite direction. The CZRQR18VB-HF diode belongs to the Zener diode type as a single diode device.

Application Field of CZRQR18VB-HF

The CZRQR18VB-HF is a Zener diode, specifically a single diode device. It can be used for voltage regulation, current switching, waveforms and suppression. It is used in various electronic circuits, such as a voltage reference, voltage limiters, regulator circuits, precision reference and clipper circuits.

Working Principle

Zener diodes, including the CZRQR18VB-HF, are constructed of two p-n junctions connected back-to-back. The diode can break down if it is biased beyond a certain voltage level, allowing current to flow in a reverse direction. This is known as Zener breakdown. This works better when the temperature is low. When a Zener diode is connected in reverse bias, electrons from the n-side move to the p-side, and a high concentration of minority carriers forms, which creates an electric field strong enough to cause breakdown. This allows the current to be “clipped” at the Zener voltage when a voltage greater than the Zener voltage is applied.

In a voltage regulator circuit, the current going through the diode is limited by a resistor and the voltage across the diode is fixed at the Zener voltage. Because of this, this circuit can provide a stable output voltage over a range of current levels.

Conclusion

The CZRQR18VB-HF is a single diode device which belongs to the Zener diode type. It is a versatile device, used for voltage regulation, current switching, waveform and suppression in electronic circuits. It works by creating a high concentration of minority carriers and applying an electric field to cause Zener breakdown.

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