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Crash Course Electronics/LED (view source)
Revision as of 00:50, 26 November 2011
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== Identifying + and - == | == Identifying + and - == | ||
Round LEDs with legs have a short and a long leg when new. The longer leg is the positive leg. Other LEDs usually have marks which can be found in their data sheets. If the legs of an LED are already cut there's | Round LEDs with legs have a short and a long leg when new. The longer leg is the positive leg (anode), the short leg is the negative (cathode). Other LEDs usually have marks which can be found in their data sheets. If the legs of an LED are already cut there's still a flattened part on the LED's marking the negative side. | ||
=== what happens if the polarity is reversed? === | === what happens if the polarity is reversed? === | ||