The SIM-20ST is a GaAs infrared light emitting diode with a side-facing detector. High output with φ1.85 lens.

Features
1) Compact package (4.4
4.3 mm) with lens.
2) High efficiency, high output PO = 7 mW (IF = 50 mA).
3) Emission spectrum well suited to silicon detectors (λP = 950 nm).
4) Good current-optical output linearity.
5) Long life, high reliability.

Applications
    Light source for sensors