V26MLA0805A Circuit Protection

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TVS (Transient Voltage Suppressor) devices and varistors such as MOVs (Metal Oxide Varistors) are employed to provide over-voltage protection for electrical systems. The V26MLA0805A by Littelfuse is a bidirectional, surface mount TVS device with an 8V breakdown voltage designed for maximum ESD protection in today’s high-speed data communication and digital audio/video equipment. This device offers excellent clamping capability, low incremental surge resistance, and fast response time. It is perfect for safeguarding a variety of applications such as USB3.0/2.0, HDMI, Gigabit Ethernet, USB Power Delivery, and Thunderbolt™ 3.

The V26MLA0805A is capable of suppressing voltage transients of up to 8V with a peak pulse current capacity of up to 14A. Its low 6.3Ω is a major advantage compared to other solutions with higher surge resistance values. As a result, its response time is significantly faster than traditional TVS diodes. Furthermore, the device’s low capacitance value (IC = 0.1pF) makes it ideal for high-side ESD protection of differential signal lines where its capacitance does not interfere with signal quality.

The V26MLA0805A is a RoHS and REACH compliant device. It is capable of handling a surge energy of 4.5J and 0.5J for 10/1000μs pulse waveforms, making it suitable for applications that require IEC Level 4 and Level 6 ESD protection, respectively. The device is offered in a variety of package types, including the standard 805-2-08 package. It is also available in many lead-free and matte-tin plating options.

The working principle of the V26MLA0805A is based on a diode technology called Avalanche Zener Diodes (AZDs). It works by utilizing the avalanche effect, which is generated when the diode’s junction voltage exceeds its breakdown voltage. When a high-voltage transient occurs, the diode’s junction voltage breaks down, leading to a sharp current increase as the electrons in the diode’s junction flow from the P-type to the N-type region. This increase in current is what provides the necessary protection against the transient event. The current then flows through the device to ground.

The V26MLA0805A is widely used in a variety of industries such as automotive, medical, communication, and consumer electronics. It is used to protect critical components like sensors, actuators, and other electronic components from voltage transients. In addition, the V26MLA0805A is also part of the SurgeShell® product line, which offers a suite of integrated surge and ESD protection features for USB and other high-speed data communication systems. With its high clamping performance, fast response time, and low surge resistance, the V26MLA0805A is an ideal solution for telecom & datacom systems, consumer electronics, and automotive applications.

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