Many applications favor SMD infrared LEDs for their small size that make them easily integrate into today’s miniaturization-driven electronic designs and for their technical advantages in terms of heat dissipation and energy efficiency. In addition, these optoelectronic devices are cost-effective when mass produced thanks to compatibility with automation and optimum material usage due to fewer components needed.
Manufacturers of infrared LEDs in China therefore continue to push the SMD category to take advantage of increasing adoption while still producing through-hole variants to cater to requirements for mechanical stability. The latter type suits rugged applications exposed to vibration, shock and other physical stresses, such as in military, aerospace and industrial machinery.
Common China-made infrared LEDs are available in 1 to 10mW or low-power, 20 to 50mW or medium-power and 50 to 100mW and above or high-power types for remote controls, other IR signaling devices and optical switches as well as optical isolation applications. Specifications vary, with wavelengths ranging from 350 to 1,100nm with ±0.5nm accuracy, viewing angles of 15, 30, 45, 60, 90, 120 and 180 degrees, forward current of 0.1 to 2,000mA and forward voltage of 0.001 to 15V. The typical life span is over 8,000 hours.
Chinese companies remain open to customization and most ensure their products follow UL, CE and RoHS standards. They source LED chips, lenses and lead wires domestically or from foreign suppliers. For LED chips, manufacturers turn to Cree, Nichia, Osram, Sanan, Silan and Luming.
Here are infrared LEDs from verified suppliers on GlobalSources.com.
6070 SMD infrared LED, 850nm
Company: A-Bright Industrial Co. Ltd
A-Bright’s infrared LED, the AH-C0WIR-850A3C2-001, is for iris scanning and recognition and night-vision applications. It comes in a 6070 package and has 850nm wavelength and 130-degree viewing angle.
MOQ: 1,000 units
Lead time: 20 days
5050 SMD infrared LED, 940nm
Company: A-Bright Industrial Co. Ltd
The AH-50IR-94060C5-012 from A-Bright is an infrared LED in a 5050 package. It has 940nm wavelength and 60-degree viewing angle and suits iris recognition and monitoring applications as well as laser machines.
MOQ: 1,000 units
Lead time: 20 days
0603 SMD infrared LED, 940nm peak
Company: Dongguan Lanjin Optoelectronics Co. Ltd
Dongguan Lanjin offers this infrared LED, the B0603IR6CWC-940nm, in a side-view 0603 package. This component, with 940nm peak wavelength and 120-degree viewing angle, has 50mA forward current, 1.25 to 1.5V forward voltage and 100mW power dissipation. It meets CE, FCC, UL, cUL and RoHS standards.
MOQ: 1,000 units
Lead time: 7 days
5050 SMD infrared LED, four in one
Company: Dongguan Lanjin Optoelectronics Co. Ltd
The 5050 SMD LED from Dongguan Lanjin is a four-in-one unit with 630, 590, 415 and 850nm or custom wavelengths, 120-degree viewing angle, 20mA current and 0.06W power ratings and 1.2 to 3.4V voltage range. It is RoHS-compliant.
MOQ: 1,000 units
Lead time: 7 days
Through-hole infrared LED, 850nm
Company: Zhongshan Golden Sun Optoelectronic Technology Co. Ltd
The 3IR4T-A002-03 from Zhongshan Golden Sun is a through-hole infrared LED with 850nm wavelength and 2.54mm lead wire spacing. It meets CE requirements.
MOQ: 10,000 units
Lead time: 7 days
8080 SMD infrared LED, 850nm
Company: Zhongshan Golden Sun Optoelectronic Technology Co. Ltd
An SMD infrared LED, Zhongshan Golden Sun’s JY-3IR850HL uses an 8080 package. It has 850nm wavelength and 3W rated power. This component is CE-approved.
MOQ: 5,000 units
Lead time: 7 days
