ESDULC3V3D9 is an ultra-low capacitance unidirectional ESD protection diode, designed for high-speed data lines and I/O interfaces. The device supports 3.3V reverse working voltage and 4V minimum breakdown voltage, and is configured with 0.55pF to 0.7pF diode capacitance, which is an ideal solution for high-speed applications with extremely high signal integrity requirements. When encountering transient voltage events, the device presents a typical clamping voltage of 15V in 8/20μs pulse test and can effectively handle up to 4A maximum reverse peak pulse current, providing reliable overvoltage protection for the circuit.
Its ESD protection performance meets the requirements of IEC 61000-4-2 standard, and the contact discharge and air discharge protection levels are both 16KV. The device is widely used in electrostatically sensitive application scenarios such as portable electronic devices, communication systems and industrial control units. ESDULC3V3D9 adopts the industry-standard SOD923 package.