The UMW CESD5V0D3 is a uni‑directional ESD protection diode designed to safeguard voltage‑sensitive electronic components from electrostatic discharge and other transient voltage events. It features a reverse stand‑off voltage of 5V, low reverse clamping voltage, and ultra‑low leakage current, ensuring minimal impact on normal circuit operation. The device offers excellent clamping capability and fast response time, making it ideal for applications exposed to ESD. Housed in a compact 1.70mm×1.30mm×1.00mm package, it complies with IEC 61000-4-2 Level 4 and JESD22-A114-B (Class 3B) ESD ratings. Typical applications include computers and peripherals, audio/video equipment, cellular handsets and accessories, portable electronics, and other communication systems.