AOZ8211DI-03 Circuit Protection

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TVS (Transient Voltage Suppressor) diodes are some of the most useful optical components for protecting sensitive devices from damage arising from electrical transients. Their design and function is useful for protecting electrical circuits from unexpected inductive and capacitive transients. In this article, we will explore the AOZ8211DI-03 application field and its working principle.

The AOZ8211DI-03 is a low capacitance, bidirectional, unidirectional TVS diode which provides excellent protection from ESD, Lightning and other Surge related transients for applications requiring peak pulse surge ratings up to 600W (8/20 μs waveform). The device is offered in the SMD 5.0 x 3.5 mm footprints and supports a broad operating temperature range of -65°C to 175°C. This device is ideal for high speed devices such as DDR3 and DDR4, DDR Memory Modules, Storage devices, and other sensitive electronic components.

The AOZ8211DI-03 has a pair of bi-directional symmetrical N-channel MOSFETs connecting the cathode to the anode of the TVS diode. These MOSFETs protect the device from any interfering spikes caused by the voltage transient. Additionally, the TVS diode has an integrated ESD diode protection network built into the design, which helps protect against electrostatic damage. The device is well suited for applications that require high-speed signal protection where protection is also required from transients above the rated power pulse.

At the device\'s core is a 5 Volt Zener diode which provides the device with its voltage clamping operation. When the device is subjected to a transient pulse, the event is sensed and the Zener diode initiates a current that rapidly clamps the voltage to a safe reference level. This process utilizes the TVS diode’s specific breakdown voltage, which triggers the diode’s clamping action and protects the equipment connected to the diode from the hazardous voltage transient.

Furthermore, the AOZ8211DI-03 is designed to be used in systems connected to ground in negative and positive common impedance single line configurations. This is beneficial as it eliminates the need for costly external components. Additionally, the device does not require any external components for voltage suppression or grounding. This allows the device to not only protect against damaging transients, but also to reduce footprint size and cost.

Overall, the AOZ8211DI-03 is an ideal TVS diode for use in voltage suppression applications in which signal integrity, low residual voltage and good peak transient performance are critical. It offers superior protection from ESD, lightning, and other transient related events. The device is also small, cost effective, and eliminates the need for external components, making it perfect for both commercial and industrial applications.

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