LED Circuit Protection Device

Littelfuse, Inc. (Chicago, IL) has introduced the PLED18 Series circuit protection device that increases LED lighting string reliability. The device maintains LED string brightness while improving LED reliability for outdoor LED lighting and high-intensity LED applications (one-, two-, or three-watt high-brightness LEDs with up to 1000 mA). The PLED series design is a voltage-triggered electronic shunt device that provides a current bypass in the case of a single LED failing into an open circuit condition. The design ensures against the loss of an entire string of LEDs due to the failure of a single LED. A single device can protect up to four high-brightness LEDs.