The TSHG family, from Vishay Semiconductor, are through-hole Infrared (IR) LEDs. They are in standard T-1 3/4 (5mm) packages. The TSHG have a clear, untinted plastic package. They use double hetero (DH) technology and offer a high radiant power and high speed output.
Suitable applications for the TSHG family of IR emitting diodes include; CMOS camera, high speed IR data transmissino and smoke-automatic fire detectors.

Features of the TSHG IR LEDs:
T-1 3/4 (5mm) package
Peak wavelength: 830nm or 850nm
Some with stand-off leads
High reliability
High radiant power and intensity
Low forward voltage

Infrared (IR) Light Emitters, Vishay