Post by thread:[EE] Good high pulse current red LED like SFH464

We are looking for some good red LEDs with high pulsing LEDs for long range optic proximity switch application. Currently we are using OSRAM SFH464 with the following parameters. Metal case, 660ns peak wavelength Forward current : If = 50mA, Surge current (10us) : Ipeak = 1A Half angle: +/-23 degree Power dissipation: 140mW Total radiant flux: 11mW at If = 50mA and period Tp =20ms Radiant intensity in axial direction at solid angle 0.1sr : >=1mW Normally we can pulse this LED to quite high current (say 300mA at 4us pulse and 100us period). Any similar LEDs from other vendors? The SFH464 is quite expensive at about US$1.7. Thanks in advance. Xiaofan