On Semiconductor NUD4700: SCR electronic shunt aims at high-reliability-LED-lighting applications

The NUD4700 SCR electronic shunt provides a current bypass for a single LED connecting to an open circuit. Targeting high-reliability-LED-lighting applications, such as headlights, lighthouses, bridges, aircraft, and runways, the shunt protects LEDs from transient and surge conditions. Features include a 1V typical on-state voltage and a 250-µA off-state current, preventing a string of LEDs from going off when one LED fails. Aiming at 1W LEDs—nominally, 3V at 350 mA—the device suits applications requiring circuit continuity. The NUD4700 electronic shunt costs 10 cents (3000).

On Semiconductor, www.onsemi.com