JAN1N4977D

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The JAN1N4977D is a zinc oxide avalanche diode (Zener diode) that is used for voltage regulation, static protection, and transient protection applications. It is a single diode (single Zener diode) and has a reverse breakdown voltage of 5.6V with a maximum power dissipation of 500mW (0.5 Watts). The JAN1N4977D type Zener diodes are typically used in applications that require a low voltage drop and fast response time.In circuit designs, the JAN1N4977D simplifies voltage regulation and switching circuits. Diodes are semiconductor components that allow current to flow in one direction but not in the other direction. A diode used for voltage regulation allows current to flow in the reverse direction, but limits the voltage at a predetermined value. The Zener diode is a special purpose diode designed specifically for this purpose.When a Zener diode is connected in reverse to an LED, it prevents the LED from overloading, by allowing only a limited amount of current to pass through. This is useful in applications where the LED must be operated at a certain voltage level. In addition, the Zener diode can provide a voltage reference, which can be used to keep the LED from saturating and burning out.The Zener diode also provides protection against transient voltage spikes. As a voltage spike passes through the Zener diode, the voltage is clamped at the breakdown voltage and the current is forced to zero, thus preventing the circuit from overloading. This provides a "safety net" against electrical surges. The speed at which a Zener diode reacts to a voltage spike is known as the “response time”. Faster response times provide better protection against voltage surges.The JAN1N4977D is a efficient and reliable Zener diode, ideal for voltage regulation, static protection, and transient protection applications. The JAN1N4977D exhibits a fast response time, a low forward voltage drop, and low power dissipation. Its reverse breakdown voltage is 5.6V and its maximum power dissipation is 500mW, making it an excellent solution for applications requiring these features.

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