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PLEDxUSxA Series - Unidirectional
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Catalog excerpts

PLEDxUSxA Series - Unidirectional - 1

^ Uttelfuse* Expertise Applied | Answers Delivered PLED Open LED Protectors High power PLED Description PLEDxUSxA open LED protectors provide an electronic switching shunt path when an LED in an LED string fails as an open circuit. This ensures that the remaining string of LEDs will continue to function if a single LED does not. The components is designed to enable higher reliability in indoor LED lighting applications such as advertisement lighting and other applications. This series is compatible with one, two and three watt LEDs that have a nominal 3V forward characteristic and is available in an SMB surface mount package. The DO-214AA (SMB) low profile package is ideal for dense board applications. Agency Approvals Notes: 1. I0- Operation current tested @ aluminum boards, ambient temp 85°C ©2019 Littelfuse, Inc. Specifications are subject to change without notice. Revision: 08/06/19

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PLEDxUSxA Series - Unidirectional - 2

^ Uttelfuse* Expertise Applied | Answers Delivered PLED Open LED ProtectorsHigh power PLEDThermal Considerations Symbol Notes: 1) Standard FR-4 PCB with Copper Pads (Recommended Size) 2) Aluminum PCB Thickness: 1.6mm Grade: 1-2 W/mK Thermal Conductivity Trace thickness: 2 oz Insulation layer thickness: 215 um Solder Pad Dimensions: 2.0mm x 2.8mm (Recommended Size) Normalized DC Holding Current vs. Case Temperature Case Temperature (Tc) - °C ©2019 Littelfuse, Inc. Specifications are subject to change without notice. Revision: 08/06/19

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PLEDxUSxA Series - Unidirectional - 3

LED Interference Test Circuit 6 LEDs in Series 50% Duty Cycle 10kHz 5 LEDs and 1 PLED in Series 50% Duty Cycle 10kHz Note: These two graphs show the current magnitude through the LED string with and without the PLED included. There is no noticeable effect on the LED current magnitude when the PLED is included in the circuit as compared to the LED current magnitude when the PLED is not in the circuit. (The conversion factor for the test measurement in the graphs above is 10mA/mV for the Pearson coil measurement, therefore, the current magnitude in the first figure is 10mA*8.9 = 89mA, while...

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PLEDxUSxA Series - Unidirectional - 4

^ Uttelfuse* Expertise Applied | Answers Delivered PLED Open LED ProtectorsHigh power PLED Soldering Parameters Part Numbering System Part Marking System ©2019 Littelfuse, Inc. Specifications are subject to change without notice. Revision: 08/06/19 Part Marking Code (Refer to Electrical Characteristics Table) Date Code Y:Year Code M:Month Code XXX:Lot Code TYPE PLED: LED Protector

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PLEDxUSxA Series - Unidirectional - 5

PLED Open LED Protectors High power PLED CASE TEMPERATURE MEASURING POINT Recommended solder pad layout (Reference Only) DO-214AA Embossed Carrier Reel Pack (RP) Meets all EIA-481-1 Standards Cathode bar on this side Cover tape 12.99 (330.0) Dimensions are in inches (and millimeters). Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete...

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