1N2975B

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The 1N2975B is an axial-leaded low-power Zener diode. It is designed to regulate voltage in low-noise applications. With a maximum reverse breakdown voltage of 6.2 V, it is ideally suited for low-noise AC power supplies, voltage monitors and stabilizers, and other similar applications. As a Zener diode, the 1N2975B regulates the voltage across its terminals in linear fashion. It is what is commonly known as a "gated" Zener diode, meaning that the voltage on the anode side will always be lower than the voltage on the cathode side. This makes it possible to regulate even very low voltages without compromising noise performance.

The 1N2975B has an absolute maximum reverse breakdown voltage of 6.2 V. This is the maximum voltage that the diode can support without experiencing any permanent damage. When the applied voltage is below this limit, the Zener diode will remain in a reverse-biased state, where the anode voltage is less than the cathode voltage. This allows for a greater degree of control over the current, as well as improved noise performance, since the reverse bias voltage can be lower than what is normally achievable with a traditional Silicon diode.

The 1N2975B also has an avalanche breakdown voltage of 6.2 V, which is the voltage at which the diode begins to conduct in the forward direction. At this point, the diode can safely handle up to 500 mA of current without damage. This makes it ideal for low-current applications, such as LED drivers, voltage clamps, and voltage references.

In addition to regulating voltage in low noise applications, the 1N2975B can also be used to protect other components in the circuit. Since the Zener diode operates in a reverse-biased state, it can act as a safety valve against overvoltage. If the voltage at the anode of the diode exceeds the limit of 6.2 V, the diode will begin to conduct and divert the excess current away from other components, thus protecting them from possible damage. This makes the 1N2975B an ideal choice for applications where overvoltage protection is required.

Overall, the 1N2975B is an excellent choice for applications that require low-noise power supplies and voltage regulators. With an absolute maximum reverse breakdown voltage of 6.2 V, an avalanche breakdown voltage of 6.2 V, and the ability to protect other components from overvoltage, the 1N2975B is an ideal solution for a variety of applications.

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