This document describes the features and characteristics of the SFH 4250 high power infrared LED, including a peak wavelength of 850nm and high forward current operation at high temperatures.
The SFH 4250 is a high‑power infrared LED with a typical peak wavelength of 850 nm and a high forward current capability. It is intended for infrared illumination of CMOS cameras, IR data transmission and optical sensors. Safety information highlights the hazardous nature of concentrated invisible IR radiation.
The document provides detailed electrical and optical characteristics, mechanical dimensions, recommended solder‑pad designs and soldering profiles, as well as packaging and recycling instructions. All data are preliminary and subject to change. This manual is written in German.
| Operating temperature range | -40 °C … +100 °C |
|---|---|
| Storage temperature range | -40 °C … +100 °C |
| Forward current (typical) | 100 mA |
| Thermal resistance (junction‑to‑ambient) | 300 K/W |
| Peak wavelength | 850 nm |
| Active chip area | 0.09 mm² |
| Active chip dimensions | 0.3 mm × 0.3 mm |
| Radiant intensity (min) | 10 mW/sr |
| Radiant intensity (max) | 20 mW/sr |
The SFH 4250 emits at a typical peak wavelength of 850 nm.
The device can be driven with a forward current of up to 100 mA.
It can operate from –40 °C up to +100 °C.