Radiant intensity and spectral data: Emission spectra and relative intensity vs. wavelength curves are included to help designers match filters, photodiodes, or colorimetric goals.

If you can describe the markings exactly (e.g., "B58944" in one line, or "B589" over "44"), I can narrow it down further.

Practical design example (concise) Assuming a white B58944 driven at 10 mA per LED with typical Vf = 3.0 V and typical luminous flux per LED from the datasheet:

Available via Worldway Electronics or Jotrin Electronics, which provide factory excess stock for repair workshops.

: It is functionally equivalent to the $\mu$PD43256BGU-70L .

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Nec B58944 Datasheet 2021 |top| -

Radiant intensity and spectral data: Emission spectra and relative intensity vs. wavelength curves are included to help designers match filters, photodiodes, or colorimetric goals.

If you can describe the markings exactly (e.g., "B58944" in one line, or "B589" over "44"), I can narrow it down further. nec b58944 datasheet 2021

Practical design example (concise) Assuming a white B58944 driven at 10 mA per LED with typical Vf = 3.0 V and typical luminous flux per LED from the datasheet: Radiant intensity and spectral data: Emission spectra and

Available via Worldway Electronics or Jotrin Electronics, which provide factory excess stock for repair workshops. "B58944" in one line

: It is functionally equivalent to the $\mu$PD43256BGU-70L .

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