The SIM-22ST is a GaAs infrared light emitting diode manufactured by ROHM. It features high efficiency, high output, small package size, and emission spectrum that is well suited to silicon detectors.
The SIM-22ST infrared LED is a side‑view GaAs device intended for use as a light source in sensor applications. It features a compact 4.7 × 4.6 mm package with a built‑in lens and delivers high output suitable for silicon detectors.
Electrical specifications include a forward current limit of 50 mA, reverse voltage of 5 V, and typical forward voltage of 1.3‑1.6 V at 50 mA. The device operates from –25 °C to +85 °C, can be stored from –30 °C to +100 °C, and emits at a peak wavelength of 950 nm with a half‑viewing angle of 30°. Detailed characteristic curves and application notes are provided in the sheet.
| Package size | 4.7 × 4.6 mm |
|---|---|
| Reverse voltage (Vr) | 5 V |
| Operating temperature range | –25 °C to +85 °C |
| Storage temperature range | –30 °C to +100 °C |
| Cut‑off frequency (fc) | 1.0 MHz |
It operates from –25 °C to +85 °C.
The package measures 4.7 mm × 4.6 mm.