High Power SMD LEDs

High power SMD LEDs combine the compact surface-mount form factor of standard SMD components with the elevated power handling of high power emitters.

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High power SMD LEDs combine the compact surface-mount form factor of standard SMD components with the elevated power handling of high power emitters. Unlike standard SMD LEDs (0402, 0603, 0805, 1206) that operate at 20mA and serve as indicators, these high power surface-mount chips run at 150mA and deliver 0.5W per emitter — enough to serve as functional illumination sources rather than mere status lights. This category currently features the 5630/5730 SMD LED footprint, which is the dominant high power SMD package used in commercial LED strip manufacturing, panel light assemblies, and architectural cove lighting worldwide.

The 5630/5730 package explained: The designation 5630 (or the newer 5730 variant) refers to the physical dimensions of the chip: 5.6mm × 3.0mm (or 5.7mm × 3.0mm). This is significantly larger than a standard 0805 (2.0mm × 1.25mm) or 1206 (3.2mm × 1.6mm) SMD LED, reflecting the larger die and thermal pad needed to handle 150mA drive current. The 5630 footprint includes an exposed metal pad on the bottom that conducts heat to the PCB copper beneath, acting as an integrated thermal path. This bottom pad is what allows the 5630 to dissipate 0.5W in a surface-mount format without the external heatsink that through-hole high power LEDs and star-mount emitters require — provided the PCB copper area beneath the pad is adequately sized. Single-layer FR4 with generous copper pour is sufficient for individual chips; aluminum-core PCBs (MCPCBs) are used in high-density strip and panel light assemblies where dozens or hundreds of 5630 chips dissipate cumulative heat.

LED strip manufacturing: The 5630/5730 is the standard emitter in commercial-grade LED strips. Strip manufacturers solder rows of 5630 chips onto flexible PCBs at densities of 30, 60, or 120 chips per meter, creating the bright, efficient LED tape that lines coves, shelves, under-cabinets, and architectural features in residential, commercial, and hospitality environments. If you manufacture or assemble custom LED strips, panels, or linear lighting modules, individual 5630/5730 SMD LEDs let you select the exact color, color temperature, and bin for your production run rather than accepting the stock configuration of a pre-made strip. This is critical for color consistency across a project — binning variation between strip suppliers can create visible color differences when two strips are placed side by side.

Commercial panel lights and troffers: The flat, edge-emitting profile of the 5630 package makes it ideal for panel light assemblies where chips are mounted around the perimeter of a light guide plate. The light guide distributes and diffuses the output across the panel face for uniform, glare-free illumination in offices, classrooms, hospitals, and retail environments. The 0.5W output per chip means fewer chips are needed compared to standard 0805 or 1206 emitters, simplifying the PCB layout and reducing solder joints. Warm white (3000K), natural white (4000K), and cool white (6000K) 5630 chips are all used in panel light production, with color temperature selection driven by the end-use environment and regional lighting standards.

Architectural cove and accent lighting: Custom architectural lighting firms and high-end integrators use 5630/5730 chips on rigid aluminum-core PCBs to build linear luminaires for cove lighting, wall washing, and grazing applications. The 0.5W per chip output level ensures that a linear array of 5630 chips at 30–60mm spacing produces enough luminous flux per meter to serve as primary accent lighting, not just a decorative glow. The small footprint allows narrow PCB widths (8–12mm) that fit inside slim aluminum extrusion profiles with diffuser covers. This is the same technology inside commercial LED strip lights, but building from individual components lets the integrator control every parameter: chip color bin, drive current, PCB material, thermal design, and optical diffuser selection.

Electrical specs and driving: The 5630/5730 SMD LED typically operates at 150mA with a forward voltage of 2.8–3.4V depending on color (check each product page). At 150mA, a current-limiting resistor works if the supply voltage is stable and well above Vf — use our LED resistor calculator to find the right value. For production strip and panel assemblies, a constant-current or constant-voltage LED driver is standard. Constant-voltage drivers (typically 12V or 24V) are used when the PCB includes on-board current-limiting resistors for each LED segment, as in most LED strip designs. Constant-current drivers are used when the LEDs are wired in series strings without on-board resistors, providing the most efficient and thermally stable operation. The 5630 chip’s bottom thermal pad must connect to adequate PCB copper (at minimum a copper pour pad matching the chip footprint) for proper heat dissipation.

Related categories: For standard 20mA SMD LEDs in smaller packages (0402, 0603, 0805, 1206, PLCC-2, PLCC-4, PLCC-6), browse our component SMD LEDs. For high power in a through-hole DIP format, see the 0.5W DIP high power LEDs in 5mm, 8mm, and 10mm packages. For watt-class emitters on star PCBs, browse 1W star LEDs and 3W star LEDs. For the highest single-module output, 10W LEDs produce 800–1200 lumens. For pre-assembled flexible lighting, our 12V LED strips use similar SMD chips on flexible PCBs ready to install. New to LEDs? Pre-wired LEDs are the simplest starting point.

Frequently Asked Questions

The number is the chip’s physical dimensions in tenths of a millimeter. A 5630 chip measures 5.6mm × 3.0mm. The 5730 is a slightly updated variant at 5.7mm × 3.0mm with minor die and thermal improvements. Both are functionally interchangeable and use the same PCB footprint. This naming convention applies across all SMD LEDs — 0805 means 0.8mm × 0.5mm (in the metric standard), 1206 means 1.2mm × 0.6mm (metric), and so on.
Standard SMD LEDs (0805, 1206) operate at 20mA and produce indicator-level brightness — suitable for status lights, backlit buttons, and PCB board indicators. The 5630/5730 operates at 150mA (0.5W) and produces dramatically more light, enough for functional illumination in strips, panel lights, and accent fixtures. The 5630 also has an exposed bottom thermal pad for heat dissipation that standard SMD LEDs lack. The larger physical size (5.6×3.0mm vs. 2.0×1.25mm for 0805) accommodates the bigger die and thermal management needed for higher power.
Individual chips on a PCB with adequate copper pour do not need a separate heatsink. The chip’s bottom thermal pad conducts heat into the PCB copper, which dissipates it. However, high-density arrays (LED strips, panel lights) generate cumulative heat that benefits from an aluminum-core PCB (MCPCB) or mounting the strip/PCB onto an aluminum channel or extrusion that acts as a heatsink. This is why commercial LED strips are commonly installed in aluminum extrusion profiles — the aluminum conducts heat away from the densely packed chips.
Yes, with care. The 5630 package is large enough (5.6×3.0mm) to hand-solder with a fine-tip iron, flux, and thin solder. The side pads are accessible for drag-soldering. However, the bottom thermal pad ideally requires solder paste and reflow (hot air or hot plate) for a proper thermal connection. For small batches, applying solder paste to the footprint and reflowing with a hot air station gives the best results. For production quantities, automated pick-and-place with reflow oven is standard.
Use our LED resistor calculator with the specific Vf and rated current from the product page. As a rough guide for a single white 5630 at 150mA from 12V: approximately 56–62Ω at 1/2W or higher rating. In LED strip designs, three 5630 chips are typically wired in series with a single resistor per segment, and the entire strip runs from a 12V constant-voltage supply.
Yes — the same physical LED chips appear in both categories for navigational convenience. The component SMD LED section groups all surface-mount LEDs by package size. This high power section groups all LEDs above standard 20mA by power class. The 5630/5730 at 0.5W (150mA) fits both organizational schemes. Same products, same specs, just two paths to find them depending on whether you are browsing by form factor or by power level.