The Everlight ITR9909 datasheet provides specifications, package dimensions, ratings, and reliability data for the reflective interrupter.
The ITR9909 is a reflective interrupter that combines an infrared emitting diode and an NPN silicon phototransistor in a black thermoplastic housing. It detects the presence of an object by the interruption of infrared light, making it suitable for applications such as mouse copiers, switch scanners, non‑contact switching, and direct PCB integration.
The datasheet lists package dimensions, absolute maximum ratings, electronic optical characteristics, typical electrical curves, reliability test items, and packing specifications. Key parameters include a cut‑off visible wavelength of 840 nm, a forward voltage of about 1.5 V, a reverse voltage rating of 5 V, and an operating temperature range of –25 °C to +85 °C.
| Cut‑off visible wavelength | 840 nm |
|---|---|
| Reverse Voltage (VR) | 5 V |
| Forward Current (IF) | 50 mA |
| Operating Temperature (Topr) | -25 °C to +85 °C |
| Typical Forward Voltage (VF1) | 1.5 V |
| Rise Time (tR) | 15 µs |
The typical forward voltage (VF1) is about 1.5 V.
The device can tolerate a reverse voltage of up to 5 V.
It operates from –25 °C to +85 °C.
It is used in mouse copiers, switch scanners, non‑contact switching, and direct PCB integration.