IR LED hits 48% electro-optic efficiency

Osram Oslon Black SFH 4715A IR LEDOsram Opto achieved typical electro-optical efficiency of 48% with its 850nm Oslon Black SFH 4715A infra-red power LED, which is intended for security illumination.

“We are not aware of any other opto-electronic component with an optical efficiency to rival this one. SFH 4715A can almost match a laser in terms of efficiency,” said Osram product marketing manager Dr Jörg Heerlein.

Beam angle is 90°- intended for outdoor CCTV illumination – and output power is up 30% from the previous (non-’A’ suffix) version (800mW from 630mW) “allowing for greater ranges than previous members of the Oslon Black family. The same range can hence be achieved with fewer components, yielding a cost benefit that is not to be sniffed at,” said Heerlein.

In view of its outdoor market, ESD protection is up to 2 kV and it has extended corrosion-resistance.

There is alwo a wider-angle version, the 150° SFH 4716A, for injecting light into narrow-beam reflector optics.

SFH 4715A (4716A) at a glance

Package size 3.85×3.85×2.29mm (3.85×3.85×1.51)
Optical output at 1A 800mW, previously 630mW
Spectral centroid 850nm
Efficiency Typically 48%
Thermal resistance 11K/W max
Beam angle 90 (150°)

 

Tags: infra-red, Osram

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