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The ESD5V0J4 is a space-efficient four-line ESD protection diode array designed to safeguard sensitive semiconductor devices against electrostatic discharge and transient voltage surges. Featuring a 5V reverse standoff voltage, low dynamic resistance, and sub-nanosecond response time, it rapidly clamps harmful transients while maintaining ultra-low leakage for stable long-term operation. With ±25kV ESD immunity and 5A surge capability, the device is ideal for protecting communication ports, high-speed data buses, audio/video interfaces, and embedded control lines in consumer electronics, computing hardware, and industrial automation systems requiring high reliability in compact PCB layouts.