PLED6M Series Open LED Protectors Keep LED Strings Working When an Individual LED Fails as an Open Circuit

Littelfuse, Inc., the global leader in circuit protection, has developed a new line of open LED protectors optimized to provide superior protection against open LEDs (Light Emitting Diodes). The PLED6M Series LED protector is designed to provide a switching electronic shunt path when an LED in an LED string fails as an open circuit. This ensures that the entire array of LEDs will continue providing illumination even if a single LED in the string fails. The new LED protectors provide greater lighting reliability in applications where uninterrupted illumination is critical, such as street, subway, runway, and tunnel lighting, as well as vehicle headlights, roadside warning lights, and outdoor signage.

The PLED6M Series is designed for use with one-watt LEDs, nominally 350mA, 3V. A low turn-on voltage of 7.5V (max) allows for fast switching after an LED opens. In addition, the on-state (bypass) voltage of 1.2V (max) reduces the steady state power dissipation following an LED open failure and is housed in a small form factor Powermite® package.

The PLED6M Series LED Protectors offer LED array designers a variety of key benefits:
  • They provide an electronic shunt/bypass for open LEDs, allowing LED strings to keep functioning, even if one LED in the set fails as an open circuit.
  • They automatically reset if the LED heals itself or the power is cycled, for low maintenance and high reliability.
  • The low profile, small footprint POWERMITE® package provides maximum heat dissipation and greater layout flexibility, making it ideal for dense board applications.
  • They can support high-brightness in outdoor LED applications.
  • They are RoHS compliant, which ensures they are an environmentally friendly product.
Chad Marak, manager of the Littelfuse PLED product line, notes, “The PLED6M open LED protector will appeal to anyone who designs and manufactures outdoor lighting or signage that requires strings of high-brightness LEDs with high reliability and low maintenance requirements.”

The PLED6M Series LED Protector is available in standard tape and reel packaging. The minimum order quantity is 3000.

Comments

Post a Comment

Popular posts from this blog

What is Class I Division 2?

Image
A Class I Division 2 is a location: (1) In which volatile flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment, or (2) In which ignitable concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are normally prevented by positive mechanical ventilation, and which might become hazardous through failure or abnormal operation of the ventilating equipment. Class I Division 2 Classification Class I Division 2 refers to the ANSI/ISA 12.12.01 standard. This standard was previously UL1604 until UL recommended the newer ANSI/ISA standard be used and that all hazardous location products be certified under this standa
Read more

FUSE SIZING CONSIDERATIONS FOR HIGHER EFFICIENCY MOTORS

Image
When selecting the proper fuse for short circuit protection in motor starting applications, it is important to not only ensure that the fuse will not nuisance open during motor start up times, but also that the fuse will coordinate as required with overload relays. When sizing fuses between 125% and 150% of the motor nameplate current, several advantages, including ease of coordination with an overload device, a smaller disconnect, and increased short circuit protection from a lower fuse rating, can be achieved. However, if sizing at this level prevents the motor from starting, it may then be necessary to increase the fuse ampere rating and it then becomes important to know the NEC sizing limitations. As of June 1, 2016, the US Department of Energy has mandated that newly manufactured electric motors will need to meet NEMA Premium® efficiency standards. As motor efficiencies increase, motor locked rotor currents can also be expected to increase. In addition to this, with across-the-lin
Read more

7/8 16UN Connectors that Provide 600 Volts and 15 Amps

TURCK announces new A-Size 3 and 4-pin 7/8 16UN powerfast™ connectors that provide up to 600 Volts and 15 Amps of power. These IP67 rated connectors provide a modular wiring system designed to handle high current applications for machine power distribution, while providing resistance to vibration commonly associated with conveyors, motors and material handling applications. The cordsets are available with a tray rated, exposed run PVC flexlife ® cable, with or without STOOW rating, and 14 AWG wires that allow you to replace hard wiring with a robust, quick disconnect system that saves the time and money spent installing a conduit system. The A-Size powerfast line offers male and female, straight connectors, standard and custom lengths, and pigtails or extensions. To make the system complete, fully encapsulated mating receptacles, with 1/2”-14 NPT mounting threads are available.
Read more