SFH 7221 is a GaAlAs infrared emitter (880 nm) and Si phototransistor, suitable for SMT assembly, emitter and detector can be controlled separately, suitable for IR reflow soldering, applications include data transmission, lock bar and infrared interface.
The SFH 7221 combines an 880 nm GaAlAs infrared LED with a silicon phototransistor in an SMT package. It is supplied on tape and reel, suitable for SMT assembly, and both emitter and detector can be driven separately, making it ideal for data transmission, lock‑bar systems, and infrared interfaces.
The document lists maximum ratings, electrical parameters, optical characteristics, package dimensions, and recommended lead‑free soldering profiles (JEDEC Level 2, J‑STD‑020B). It also includes handling, packaging, and compliance information for OEM integration. This manual is written in German.
| Peak wavelength | 880 nm |
|---|---|
| Radiant intensity | ≥ 4 mW/sr |
| Capacitance (LED) | 15 pF |
| Active chip area | 0.3 × 0.3 mm |
The emitter radiates at a peak wavelength of 880 nm.