1N2820B

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	24V
Tolerance:	±5%
Power - Max:	50W
Impedance (Max) (Zzt):	2.6 Ohms
Current - Reverse Leakage @ Vr:	10µA @ 18.2V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 10A
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Through Hole
Package / Case:	TO-204AD
Supplier Device Package:	TO-204AD (TO-3)
Base Part Number:	1N2820

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The 1N2820B is a single, low-noise Zener diode designed for use in high frequency, wideband electron processes. The 1N2820B can be used in a wide range of applications, such as low-voltage regulation, high frequency / noise attenuation, switching and protection, and clamping.

Application Field

The 1N2820B is a Zener diode widely used in CTV high voltage switching circuits, audio protection circuits, and electronic toaster ovens. It is also used as a temperature sensor for air conditioners, or in low voltage regulation circuits for other electronic products.

1N2820B is also used in RF and audio power amplifiers as a constant voltage source, to reduce noise, and improve the performance of the amplifier. Additionally, the 1N2820B can be used in power supplies, where it provides low output voltage regulation and constant voltage.

Working Principle

The 1N2820B is an operating junction Zener diode, meaning the Zener breakdown voltage is created by the depletion region of the device junction. This is different from an avalanche breakdown, in which carriers are generated by an increase in temperature.

The 1N2820B is designed for operation as a low-voltage voltage regulator and as a reference, meaning it will maintain a very low voltage drop from the breakdown voltage all the way down to zero volts. This is because the depletion region of the diode will increase in size as the voltage across the diode decreases. This increase in the size of the depletion region results in a decrease in the device breakdown voltage.

The 1N2820B is capable of handling currents up to 250 mA, which makes it an ideal candidate for applications such as audio protection and switching circuits. Due to its low noise operation, it can be used in audio applications where noise is a concern. The 1N2820B also has very low capacitance, which makes it ideal for high frequency applications.

In summary, the 1N2820B is a single, low-noise Zener diode designed for use in a wide range of applications. It has a wide range of operating temperatures, making it suitable for use in a variety of applications. It has a low capacitance, which makes it ideal for high-frequency applications, and it can handle currents up to 250 mA. The 1N2820B can be used for low-voltage regulation, audio protection and switching, and clamping.

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