Voltage - Clamping (Max) @ Ipp:	7V
Supplier Device Package:	2-DFN (1x0.6)
Package / Case:	0402 (1006 Metric)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Capacitance @ Frequency:	0.5pF @ 1MHz
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	40W
Current - Peak Pulse (10/1000µs):	6A (8/20µs)
Series:	--
Voltage - Breakdown (Min):	4V
Voltage - Reverse Standoff (Typ):	3.6V (Max)
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes

AOZ8811DT-03 is the latest device from Diodes and is designed to provide protection against voltage transients in power supplies and other applications. The device consists of a dual diode-bridge configuration and is designed for use in applications such as protecting USB ports, PCMCIA cards, and other communication circuits from Electro-Static Discharge (ESD). The AOZ8811DT-03 has a built-in thermal protection circuit with an adjustable current limit to guard against thermal runaway. This device also provides a no-latch dual-channel ESD protection capability which allows ultra-fast response times and repeatable results. It offers an extended working voltage range from 7V to 20V and a maximum peak pulse current of 38A for 8/20µs (1kV contact).

Application Field

AOZ8811DT-03 devices are designed for use in low-voltage systems. They can provide both surge protection and ESD protection needed in many portable electronic devices including mobile phones, PDAs, and other battery-powered products. They are also suitable for a wide range of industrial, consumer, and automotive applications. Due to the device\'s high-speed response time and no-latch ESD protection, it is a good choice for cable-type communication ports such as USB and IEEE 1394 as well as power line and signal line protection. It can also be used to replace traditional TVS diodes, transient voltage suppressors, and gas tubes in a wide variety of applications.

Working Principle

The AOZ8811DT-03 device is designed to provide transient suppressor protection against transients from external sources such as lightning strikes and electrostatic discharge. It operates by suppressing the voltage spike that occurs when these transient events occur. The device uses a dual diode bridge configuration to protect devices from positive and negative voltage transients. When a transient event such as ESD or lightning occurs, the two diodes in the bridge create a voltage clamp which protects sensitive electronics from overvoltages. The device will also detect current surges and self-regulate the voltage by providing a path for the current to flow away from the protected circuitry. The device is also equipped with a thermal protection circuit which prevents device overheating and power dissipation. If the temperature rises above a certain threshold it will shut off the power supply to the device, preventing further damage. In addition, the device has special circuitry that is designed to improve noise immunity. This feature helps protect sensitive electronics from electrical interference and ensures reliable operation of the device.

Conclusion

The AOZ8811DT-03 is a versatile and reliable TVS diode designed to provide reliable protection against voltage transients, current surges, and electrostatic discharge. It is ideal for a wide variety of low-voltage applications, in particular those sensitive to ESD and transients. The device also comes with a thermal protection circuit, as well as improved noise immunity to increase device reliability and attractiveness in markets such as consumer electronics and automotive.

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