What is the reverse voltage or the backward voltage in the LED that the voltage supply needed to overcome in order to allow LED to be in ON state? For example the
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Super-bright 5mm IR LED [940nm] : ID 387 : $0.75 : Adafruit Industries, Unique & fun DIY electronics and kits
Typical Operating Characteristics (continued). RED LED FORWARD VOLTAGE vs. IR LED FORWARD VOLTAGE vs - Datasheet MAX30101 Maxim
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