The document introduces a phototransistor product named QSD122/123/124, which features high sensitivity, narrow reception angle, and black epoxy packaging.
This document is a technical datasheet for the Fairchild Semiconductor QSD122, QSD123, and QSD124 series of plastic silicon infrared phototransistors. The devices are encapsulated in an infrared-transparent black T-1 3/4 package with a notched emitter and a daylight filter to reduce ambient light interference.
The datasheet provides absolute maximum ratings, electrical and optical characteristics, and application notes for these components. Key specifications include an operating temperature range of -40°C to +100°C, a peak sensitivity wavelength of 880 nm, and a narrow reception angle of ±12 degrees.
| Peak Sensitivity Wavelength | 880 nm |
|---|---|
| Collector Emitter Dark Current | ≤ 100 nA |
| Collector-Emitter Voltage (Max) | 30 V |
| Operating Temperature Range | -40 to +100 °C |
The devices are encapsulated in a T-1 3/4 black epoxy package.
The recommended soldering temperature using an iron is 240°C for 5 seconds.