ams OSRAM SFH 4049B/BR Chip LED Lens 940nm Infrared Emitters

ams OSRAM SFH 4049B/BR Chip LED Lens 940nm Infrared Emitters are engineered to deliver high optical output in space-constrained sensing and illumination applications. Housed in an ultra-small SMT package with a black epoxy lens, these emitters provide efficient infrared performance for access control systems, factory automation equipment, appliances, tools, and eye/face/hand-tracking technologies. The SFH 4049B features a standard top-emitting configuration. At the same time, the SFH 4049BR offers a reverse-mount design with identical optical performance, giving designers greater flexibility in PCB layouts and system integration.

Designed for reliable, high-speed operation, the ams OSRAM SFH 4049B/BR emitters feature a 940nm centroid wavelength, 950nm peak wavelength, and a narrow 8° half-angle for highly focused infrared illumination. The devices deliver up to 205mW/sr radiant intensity at 70mA and 285mW/sr at 100mA, while fast 12ns rise/fall times enable use in advanced sensing and communication systems. With ESD protection up to 2kV, support for pulsed currents up to 0.7A, and an operating temperature range of -40°C to +85°C, the SFH 4049B/BR emitters combine high optical power, durability, and efficiency for demanding industrial, security, and tracking applications.

Features

  • Black epoxy, surface mount package
  • High optical power
  • Fast switching times
  • Small outline dimensions
  • Reverse mount (SFH 4049BR)
  • 950nm typical peak wavelength
  • 940nm typical centroid wavelength
  • 11.2mW/sr to 35.5mW/sr radiant intensity range, 21mW/sr typical
  • 56mW to 80mW typical total radiant flux range
  • 1mA to 100mA forward current range, 0.7A maximum pulsed
  • 10µA maximum reverse current
  • 1.20V to 1.65V forward voltage range
  • 5V maximum reverse voltage
  • 12ns typical rise/fall time
  • 280K/W maximum thermal resistance junction solder point real
  • -40°C to +85°C operating temperature range
  • +100°C maximum junction temperature
  • 2kV ESD protection, HBM Class 2, per ANSI/ESDA/JEDEC JS-001
  • UL version available

Applications

  • Access control and security
  • Appliances and tools
  • Eye, face, and hand tracking
  • Factory automation

Datasheets

Published: 2026-10-01 | Updated: 2026-10-06