LEDs & Optoelectronics
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Products (74)
XL-HD3535UGC-A4 - 3W Green SMD LED 110-150lm 525nm | XINGLIGHT
The XINGLIGHT XL-HD3535UGC-A4 is a high-power green SMD LED housed in a compact 3.5 x 3.5 x 2.2 mm 3535 metric package, delivering a typical luminous flux of 110-150 lm at a forward current of 350 mA. It uses a transparent water-clear colloid, exhibits a 120-degree half-light viewing angle, and emits at a dominant wavelength of 515-535 nm with a typical peak of 525 nm. The device is rated for 3.4 V typical forward voltage and 3 W maximum power dissipation, making it suitable for camera flash, stage lighting, and signage backlighting. A discrete SMD LED in the 3535 metric footprint is a chip-on-board-style light-emitting diode that combines a high-brightness semiconductor die, an optical-grade silicone or epoxy lens, and thermally-conductive package leads. Compared with smaller 0805 or 1206 indication LEDs, 3535 high-power LEDs dissipate several watts of heat and require careful thermal management via PCB copper pours. Within the optoelectronics hierarchy, this part sits under LED Indication - Discrete, then broader categories of LEDs and Optoelectronics, providing monochromatic point-source illumination for general lighting, signalling, and indicator roles. Key features include 110-150 lm typical luminous flux at IF = 350 mA and Ta = 25 °C, dominant wavelength 515-535 nm, peak wavelength 525 nm typical, 120° viewing angle, transparent water-clear lens, and an operating temperature range of -40 °C to +125 °C. The 3535 metric package is reflow-compatible with standard lead-free profiles and provides a low thermal-resistance path from junction to solder pad, enabling the LED to sustain high drive currents in compact luminaires. Internally, the XL-HD3535UGC-A4 uses an InGaN (Indium Gallium Nitride) green die bonded onto a thermal-enhanced lead frame. The transparent silicone lens concentrates the die's lambertian emission into a wider 120° pattern, which simplifies optical design for area lighting. Junction-to-solder-pad thermal resistance is engineered to keep junction temperature rise within safe limits at 350 mA continuous drive, which is critical for lumen maintenance and color stability over operational life. Typical applications include mobile-camera flash and smartphone strobe modules, architectural and stage lighting fixtures, horticulture grow-light panels (when supplemented with red and blue channels), decorative signage and accent lighting, indicator strips in industrial equipment, and portable lighting such as bicycle headlamps or emergency flashlights. The wide 120° beam eliminates the need for a secondary optic in many flat-panel designs. When designing with this LED, always provide adequate copper thermal relief on the anode and cathode pads - minimum 1 oz copper pour connected by thermal vias to the opposite side plane is recommended for continuous 350 mA operation. Drive the LED with a constant-current source; voltage-driven operation will cause thermal runaway and reduce lumen maintenance. ESD precautions (anti-static wrist strap, ionizer) must be observed during handling because InGaN dies are ESD-sensitive. This page synthesizes distributor pricing tiers, drop-in alternatives from the same 3535 footprint family, and practical thermal design notes not found in the bare manufacturer datasheet.
XL-HD3535WWC - 1W Warm White 3535 SMD LED | XINGLIGHT
The XINGLIGHT XL-HD3535WWC is a high-brightness warm white SMD LED in a 3.5 mm x 3.5 mm x 2.0 mm 3535 surface-mount package, delivering 80-100 lumens of luminous flux at 350 mA forward current with a typical forward voltage of 3.6 V. It is specified across a warm white correlated color temperature (CCT) range of 2800 K to 3200 K, with a water-clear encapsulant and 120-degree viewing angle for broad illumination coverage. A high-power LED is a solid-state semiconductor light source that converts electrical energy directly into photons through electroluminescence. Within the broader optoelectronics taxonomy, an LED sits at the component level (LED) -> discrete semiconductor -> optoelectronic device -> semiconductor device, with high-power variants differentiated by their ability to handle continuous forward currents in the hundreds of milliamps (versus indicator LEDs that operate at 10-20 mA). High-power LEDs require thermal management via PCB copper pours and often employ phosphor-converted white spectra from a blue die plus yellow phosphor combination. Key features include a maximum continuous forward current rating of 350 mA, a maximum pulse forward current that supports strobe and flash operation, a thermal resistance suitable for SMT reflow assembly, and an MSL 3 moisture sensitivity rating. The 3535 footprint has become an industry-standard package for camera flash and portable lighting applications due to its balance of thermal performance and compact size. The water-clear lens encapsulant provides high luminous intensity and uniform beam distribution across the 120-degree viewing angle. The XL-HD3535WWC uses a vertical chip architecture on a ceramic substrate or lead-frame lead-based package, with phosphor-converted warm white emission. The package is engineered for high peak current handling during strobe operation, where brief current pulses far exceeding the continuous rating are tolerated due to low duty cycle, making it suitable for smartphone camera flash and digital video auxiliary lighting applications. Typical applications include mobile camera flash, digital video lighting, portable flashlights, automotive interior illumination, and architectural accent lighting. The warm white color temperature makes it particularly suited for skin-tone-friendly photography, hospitality lighting, and decorative installations where a softer color temperature is preferred. When designing with this device, ensure adequate thermal management through copper pours on the PCB - at 350 mA forward current and 3.6 V forward voltage, the device dissipates approximately 1.26 W, requiring thermal vias or copper area to maintain junction temperature within specified limits. Drive configurations for strobe operation should observe the maximum pulse ratings from the datasheet, with appropriate current limiting and pulse width control. This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes not found in the manufacturer datasheet. Specifications are verified against distributor listings as of 2026-10-05.