SFH 9240/9241 is a photoelectric switch released by Osram, which has a combination of IR-GaAs-emitter and Schmitt-Trigger IC, daylight cut-off filter, typical threshold current of 3mA, electrically isolated emitter and detector, IR-Reflow Löten soldering method, and preconditioning according to JEDEC Level 4 standard. It can be used for optical switch, pulse generator and counter applications.
The SFH 9240 and SFH 9241 are reflective interrupters that combine an IR‑GaAs luminescence diode with a Schmitt‑Trigger IC. The SFH 9240 provides an active‑low output, while the SFH 9241 provides an active‑high output. Both devices include a daylight‑cut‑off filter and are supplied lead‑free in accordance with RoHS.
Electrical characteristics include a typical turn‑on current of 3 mA, supply voltage range of 4 V to 18 V, and maximum output current below 16 mA. The components operate from –40 °C to +100 °C and have power dissipation limits of 80 mW (emitter) and 175 mW (detector). Recommended soldering methods are IR‑reflow with JEDEC Level 4 pre‑conditioning. This manual is written in German.
| Output type (SFH 9240) | Active low |
|---|---|
| Output type (SFH 9241) | Active high |
| Typical turn‑on current | 3 mA |
| Supply voltage | 4 V … 18 V |
| Power dissipation (detector) | 175 mW |
The typical turn‑on current is 3 mA.
They operate with a supply voltage of 4 V to 18 V.
Yes, they are lead‑free and RoHS compliant.
The SFH 9240 provides an active‑low output.