BZD27B120P-M3-08 Discrete Semiconductor Products

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Introduction
The BZD27B120P-M3-08 is an ESD (Electrostatic Discharge) protected Zener Diode used as a single device in a variety of applications. It features a 3-terminal breakdown voltage of 120V, with a peak operating temperature of 150°C, a low current leakage of 0.001 mA (at 125°C), and a maximum power dissipation of 8 watts. This device is intended for use in high voltage applications, and switching power supplies, especially those in which transient protection is required.
Application Field
The BZD27B120P-M3-08 Zener Diode is mainly used for voltage regulation, transient suppression, and overvoltage protection in power supply circuits, motor controls, and communications systems. It can also be used in other applications such as interface circuits, switching power supplies, and overvoltage protection circuits.In voltage regulation applications, the BZD27B120P-M3-08 acts as an active element to regulate and control the output voltage of a circuit. It performs this function by clamps the voltage when it reaches a certain level, which creates a constant voltage supply. In transient suppression applications, the BZD27B120P-M3-08 will protect the circuit from transient spikes and other surges in voltage. Finally, the device can also be used as an overvoltage protection device, which prevents voltage surges from damaging sensitive components in the circuit.
Working Principle
The BZD27B120P-M3-08 works by clamping the voltage to a predetermined level when it reaches a certain point. This is done through a process called "breakdown," which is when the voltage of the device exceeds its breakdown voltage, and a large current surge results. The current surge is then limited by the resistance of the diode, and the voltage is clamped to the diode\'s zener voltage.When the voltage across the diode is below its understanding breakdown voltage, it behaves as an open switch, allowing the current to flow freely. However, when the voltage across the diode reaches its zener voltage, the current is limited by the resistance of the diode, and the voltage is clamped to the zener voltage. This is what allows the BZD27B120P-M3-08 to regulate the voltage in various applications.
Conclusion
The BZD27B120P-M3-08 is an ESD (Electrostatic Discharge) protected Zener Diode that is suitable for use in high voltage applications and switching power supplies, where transient protection is required. It can be used for voltage regulation, transient suppression, and overvoltage protection in power supply circuits, motor controls, and communications systems. It works by clamping the voltage to a predetermined level when it reaches a certain point, which is done through a process called "breakdown" and is limited by the resistance of the diode.Overall, the BZD27B120P-M3-08 is a versatile and reliable device that can be used in a variety of applications requiring voltage regulation and overvoltage protection.

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