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TVS - Diodes

ACPDQC5V0U-HF Application Field and Working Principle

TVS (Transient Voltage Suppressors) diodes are solid state devices used for providing protection against high voltage spikes or transient voltage surges that are created due to switching operations. ACPDQC5V0U-HF devices are specifically designed to protect up to 5V systems or components against surges that exceed 5V. These devices can be applied in logic circuits, communications components, consumer electronics, automotive electronics, and industrial electronics.

The ACPDQC5V0U-HF device is a 5V Bi-directional Unidirectional ESD (Electrostatic Discharge) protection diode. Its low voltage threshold range covers 3.0V to 6.0V, and its ultra-low capacitance of 5pF (at 1V) makes it ideal for high speed data communication applications. This device features an ultra-low forward voltage and an ultra-fast response time that is less than 1ns. Moreover, the device is High-Temperature stable, RoHS compliant and has a Low On-resistance of 5Ω.

The working principle of a TVS diode is based on the avalanche breakdown phenomenon. When using a TVS diode, one needs to identify the maximum transient voltage and the maximum amount of power dissipation that can be handled by the device. When the transient voltage or current exceeds the maximum ratings, the diode can dissipate the excess energy in the form of heat, thus protecting the device or system from potential damage. To determine the power dissipation capability of the diode, its on-resistance should be taken into consideration.

The ACPDQC5V0U-HF device is CATC Certified and UL/CSA approved, making it suitable for all types of application, as required by safety standards. The device has a maximum surge rating of 2,000 W peak pulse power (at tp=8/20μs). It also features an ESD clamping voltage of 8.8V (HBM) and 2.1V (MM). The device is an ideal solution for TVS protection in communication ports, consumer electronics, automotive circuits, and other circuits that require high-speed data communication.

In summary, the ACPDQC5V0U-HF device is an ideal Transient Voltage Suppressors diode whose low voltage threshold range covers 3.0V to 6.0V. It features an ultra-low forward voltage, a low On-resistance of 5Ω, and an ultra-fast response time that is less than 1ns. It is certified by CATC and UL/CSA approved, as well as RoHS compliant. Furthermore, it can provide protection against high voltage spikes or transient voltage surges and dissipate the excessive energy in the form of heat. This versatile device is suitable for various applications, including logic circuits, consumer electronics, automotive electronics, and industrial electronics.

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