Fairchild QSB34GR, QSB34ZR, QSB34CGR, QSB34CZR Surface Mount Silicon Pin Photodiode User Manual
Summary
This datasheet covers the Fairchild QSB34GR, QSB34ZR, QSB34CGR, and QSB34CZR surface mount silicon PIN photodiodes featuring a large 3mm×3mm chip with a 2.55mm×2.55mm photosensitive area and wide 120° reception angle. The GR and ZR variants include a built-in daylight filter, while CGR and CZR are unfiltered versions. Two mounting orientations are offered: overmount board (GR/CGR) and undermount board (ZR/CZR). Key specifications include 32V maximum reverse voltage, 150mW power dissipation at 25
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 6 |
| File Size | 215.26 KB |
| Published | July 06, 2026 |
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Frequently Asked Questions
What packages are available for the photodiode?
It is available in Surface Mount Packages and also comes with an option for a Daylight Filter on QSB34GR/QSB34ZR.
How should I solder these devices?
Use a reflow soldering profile of 1-3°C/sec, maximum at 260°C for no more than 10 seconds.
What are the performance differences between QSB34GR and QSB34ZR?
The QSB34GR is designed for overmount boards (Sensitive Area: 2.55mm x 2.55mm), while QSB34ZR is for undermount boards (High Sensitivity).
What are the maximum operating temperature specifications?
The Absolute Maximum Operating Temperature range is -25 to +85 °C.