ESD351

ESD351 is a high-speed, bidirectional transient voltage suppressor (TVS) diode array manufactured by Texas Instruments, designed to protect sensitive electronic circuits from electrostatic discharge (ESD) events. It features a low clamping voltage and ultra-fast response time, making it ideal for safeguarding data lines in high-frequency communication interfaces. The device is optimized for ESD protection in accordance with the IEC 61000-4-2 standard, offering robust protection up to ±8 kV contact discharge and ±15 kV air discharge. This component integrates two independent unidirectional TVS diodes in a single package, enabling simultaneous protection of dual signal lines such as USB, RS-232, or CAN bus interfaces. Its compact surface-mount package (SOT-23-6) ensures minimal board space usage while maintaining excellent thermal performance. With a leakage current as low as 1 μA at room temperature, the ESD351 minimizes power consumption and avoids interference with normal circuit operation. The ESD351 operates over a wide supply voltage range from 1.8 V to 5.5 V, making it suitable for use in both low-voltage portable devices and industrial systems. It exhibits a low capacitance of typically 3 pF per channel, which preserves signal integrity in high-speed data transmission environments—critical for applications like USB 2.0, HDMI, and Ethernet interfaces. Additionally, the device is lead-free and RoHS compliant, aligning with modern environmental standards. Common applications include consumer electronics such as smartphones, tablets, and wearables; automotive infotainment systems; and industrial control equipment where reliable ESD protection is essential. Its design supports continuous operation under harsh electromagnetic environments without degradation in performance. The ESD351 also provides excellent reliability under repeated ESD stress conditions, ensuring long-term system stability and reduced field failures. Engineered for ease of integration, the ESD351 requires no external components for basic protection functionality, simplifying PCB layout and reducing overall system cost. Its consistent electrical characteristics across temperature ranges—from -40°C to +85°C—make it well-suited for diverse operating conditions in both commercial and industrial settings.