UESD3.3D

The UESD3.3D is a high-performance transient voltage suppressor (TVS) diode manufactured by onsemi, specifically designed for robust protection of sensitive electronic circuits from electrostatic discharge (ESD) and transient overvoltages. It features a peak pulse current capability of up to 50 A (10/1000 μs), making it suitable for applications requiring fast response times and high energy absorption. The device operates with a low clamping voltage of typically 6.5 V at 1 kA, ensuring minimal stress on protected components during surge events. This TVS diode is packaged in a compact SOD-123 surface-mount format, enabling efficient board space utilization while supporting automated assembly processes. Its low leakage current—less than 1 μA at 3.3 V—ensures minimal power consumption and stable operation in low-power or battery-operated systems. The UESD3.3D complies with JEDEC standards for ESD protection, including HBM (Human Body Model) ratings of 8 kV and CDM (Charged Device Model) ratings of 1 kV, offering reliable immunity to common electrostatic events in industrial, consumer, and automotive environments. The device is optimized for use in data lines, I/O interfaces, and communication ports where signal integrity must be preserved under transient conditions. It provides excellent protection for digital signals in USB, HDMI, Ethernet, and other high-speed interface applications. Its unidirectional architecture ensures effective suppression of positive transients while maintaining forward voltage drop characteristics ideal for 3.3 V logic levels. Designed for reliability in demanding environments, the UESD3.3D supports a wide operating temperature range from -55°C to +150°C, making it suitable for both commercial and industrial applications. The component is lead-free and RoHS-compliant, aligning with environmental regulations and sustainable manufacturing practices. Its consistent performance across multiple electrical and thermal conditions makes it an ideal choice for designers seeking dependable ESD protection in modern electronics.