Guide
How to Read an IR LED Bare Die Datasheet
- Peak wavelength (λp)
- Where emission peaks. Match it to your sensor response and optical filter.
- Optical power / radiant flux
- Light output at a stated current (MANULED lists values at 20 mA). Scales with drive current until thermal limits.
- Forward voltage (Vf)
- Voltage drop at the test current. Sets driver headroom and series string length.
- Reverse voltage (Vr)
- Maximum reverse bias before damage. Protect against reverse transients.
- Absolute max current
- Never exceed. Derate for temperature and duty cycle in your design.
- Chip size and thickness
- Drives die attach, optics and thermal path. Sizes are customizable from 254 to 1270 µm.
- Metallization
- Gold top and bottom contacts set bonding and die-attach options.
FAQs
Where can I download the MANULED datasheet?+
Each wavelength has a datasheet page at /products/{wavelength}/datasheet, for example /products/850/datasheet.
Why is optical power given at 20 mA?+
20 mA is a standard comparison point. Real designs may drive higher current within thermal and absolute maximum limits.