1N821A, SEL. 1% VBR

Series:	--
Packaging:	Tray
Part Status:	Active
Voltage - Zener (Nom) (Vz):	6.2V
Tolerance:	±1%
Power - Max:	500mW
Impedance (Max) (Zzt):	10 Ohms
Current - Reverse Leakage @ Vr:	2µA @ 3V
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35 (DO-204AH)

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Introduction to 1N821A SEL. 1% VBR Diodes-Zener-Single

The 1N821A SEL. 1% VBR from Diodes-Zener-Single is a voltage-regulated diode that is used to provide a stable Zener voltage reference. This device provides high reverse breakdown voltage, superior performance and superior reliability than traditional Zener diodes. The device has a reverse breakdown voltage that is set during the manufacture process, and it is available in a wide range of breakdown voltages.

Application Field of 1N821A SEL. 1% VBR

The 1N821A SEL. 1% VBR is mainly used as a voltage reference in applications requiring a stable voltage level. It is particularly useful in applications such as voltage regulation, voltage switching, over-voltage protection, and power conditioning.The devices can be used in a variety of applications such as power supplies, voltage regulators, motor control and protection circuits. Additionally, the 1N821A SEL. 1% VBR can be used as an internal reference in a mixed signal system, or as a current limiter when used in series with an external voltage source.

Working Principle of 1N821A SEL. 1% VBR

The 1N821A SEL. 1% VBR is an avalanche diode that operates by passing a large current when the applied voltage reaches its breakdown voltage. The diode has a constant breakdown voltage that is accurately selected during the manufacture process. When the forward voltage exceeds the zener voltage, the diode begins to conduct a large current, which causes a voltage drop across the diode due to its forward resistance. The 1N821A SEL. 1% VBR is designed to maintain a constant reverse current, or Zener current, when the applied voltage is below the breakdown voltage. The Zener voltage is maintained by the avalanche effect, where the electrons that are in conduction are accelerated into the junction due to the high electric field, which causes additional carriers to be injected into the junction. The 1N821A SEL. 1% VBR is designed with a built-in temperature compensation circuit that serves to maintain a constant Zener voltage at different temperatures. This provides constant voltage regulation over a wide temperature range, which is important in many applications.

Conclusion

The 1N821A SEL. 1% VBR from Diodes-Zener-Single is a voltage-regulated diode that is used to provide a stable Zener voltage reference. It features low leakage and has a wide range of breakdown voltages. The device is designed for applications in which a stable voltage reference is required, such as voltage regulation, voltage switching, over-voltage protection, and power conditioning. The device also has a built-in temperature compensation circuit that ensures a constant Zener voltage over a wide temperature range.

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