Littelfuse PLED Supports Replacement of Fluorescent Tubes with LED Strings or Tubes Without Reducing Ballast Drivers

Ultra-low hold current ensures compatibility with existing ballasts and LED lamps

Littelfuse has introduced the PLED family with ultra-low holding current (only 21mA), which enables ballast drivers widely used in fluorescent tube outputs to be compatible with modern LED strings or tubes for replacement. Therefore, there is no need to discard ballasts that can still work when replacing fluorescent tubes with LED strings or lamps.

PLED ultra low holding current series
The PLED ultralow holding current series also ensures that ballasts can activate LED strings or tubes; this is especially important for ballasts that need to detect high voltage outputs when lit.
Typical applications for ultra-low holding current PLEDs include the replacement of indoor and outdoor fluorescent tubes with LED tubes or strings.

Meng Wang, Littelfuse LED protector product marketing manager, said. "With this series of products, lower-cost LED drivers compatible with ballast output can be manufactured."

The ultra-low holding current series PLED has the following key advantages:

·  Ultra-low hold current allows these PLEDs to be used for LED light strings with different power ratings while avoiding flicker.
·  The small DO-214AA package allows for layout flexibility and is ideal for dense circuit board applications.
·  The lower threshold voltage (up to 2V) means lower switching losses.

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Author：Brittany Antonia （The author of article owns the copyright.）