ELECTRONICS: Vishay Intertechnology Inc. has released new power surface-mount white LEDs in two binning versions. For a wider range of pin compatibility with similar devices, the VLMW321xx LEDs feature three anodes and one cathode, while the VLMW322xx LEDs offer three cathodes and one anode.The devices feature a PLCC 4 package with a lead frame optimized to provide very low thermal resistance down to 300 K/W and power dissipation up to 200 mW, which in turn enables high drive currents up to 50 mA for twice the brightness of Vishay’s high-intensity SMD LEDs in the PLCC 2 package. For automotive applications, the VLMW321xx and VLMW322xx LEDs are automotive qualified AEC-Q101. Silicone casting provides for a long service life.
The high-intensity LEDs are intended for traffic signals and signs; interior and exterior lighting; automotive interior and exterior lighting; indicators and backlighting in household appliances, toys and games, and mobile phones; camera flashes; and general illumination for retail and window displays, emergency lighting and signs, and museums and showrooms.
Built on high-efficiency InGaN technology, the VLMW321xx and VLMW322xx devices provide a high luminous intensity of 1400 mcd to 3550 mcd, and luminous flux from 7000 mlm to 8900 mlm. The LEDs feature a 60 degree angle of half-intensity and a luminous intensity ratio per packing unit of less than 1.6, and are categorized, per packing unit, for luminous intensity and color.
The lead (Pb)-free and RoHS-compliant devices are available in 8-mm tape and are compatible with IR-reflow, vapor phase and wave soldering processes according to CECC 00802 and J-STD-020, and preconditioning according to JEDEC Level 2a. The LEDs offer an ESD-withstand voltage up to 2 kV (HBM) according to JESD22-A114-B.
Samples and production quantities of the new VLMW321xx and VLMW322xx power LEDs are available now with lead times of eight weeks for larger orders. Pricing for U.S. delivery in 10,000-piece quantities is $.17 per piece.
- Edited by Liz Taurasi