The XL-HD3535HIRC-A4 is a high-power infrared LED with a 3535 package (3.5×3.5×2.2mm) and a peak wavelength of 850nm (near-infrared, invisible light). It uses a colorless transparent silicone encapsulation and an aluminum oxide ceramic substrate, offering excellent heat dissipation. This is a 3W-class high-power infrared LED, with a maximum continuous operating current of 0.7A, a radiant intensity of up to 450mW/Sr (typical), and a 120° beam angle (dome design balances focus and coverage). It's suitable for SMT reflow soldering, RoHS compliant, has a moisture sensitivity level of MSL 3, making it an ideal light source for infrared remote control, surveillance cameras, industrial control, photoelectric switches, and other applications.
Optical Performance:
Peak Wavelength (λp): 850nm (near-infrared, invisible light)
Radiant Intensity (Ie): 350~450mW/Sr (@350mA, see datasheet for binning details)
Viewing Angle (2θ1/2): 120° (dome design, balances directionality and coverage)
Electrical Parameters (Ta=25℃):
Power Consumption (Pd): 3W (high-power type)
Maximum Continuous Forward Current (IF): 0.7A
Forward Pulse Current (IFP): 2.8A (suitable for pulse driving)
Forward Voltage (VF): 1.4~1.6V (@350mA, typical 1.5V)
Reverse Current (IR): ≤10μA (VR=5V)
Thermal Resistance (Rth j-s): 9℃/W (junction to solder, excellent heat dissipation)
Structure and Reliability:
Alumina Ceramic Substrate: provides excellent thermal conductivity and insulation
Dome Silicone Packaging: improves light output efficiency and protects the chip
Operating Temperature: -35℃~85℃
Storage Temperature: -40℃~85℃
Soldering Condition: reflow soldering 260℃ ≤6s
Passed 1000-hour lifetime, high temperature/high humidity, thermal cycling, and other reliability tests (see page 7 of datasheet)
Supports radiant intensity and voltage binning for easy bulk consistency selection
Others:
EIA standard tape and reel packaging, suitable for high-speed SMT mounting
Moisture-proof and anti-static sealed packaging, recommended to use within 7 days after opening
Medical Equipment: Infrared sensing and blood oxygen detection in medical instruments
Infrared Remote Controls: Long-distance control and smart home management
Surveillance Cameras: Night vision lighting and infrared illumination
Industrial Control: Counters, thermal imaging, and smart meters
Infrared Photoelectric Switches: Object detection, position sensing, and light barriers
Wireless Communication and Signal Transmission: Infrared communication links
Smart Cars/Robots: Obstacle avoidance, line tracking, and distance detection
