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| # | Post Title | Result Info | Date | User | Forum |
| Answer to: How to identify LED terminals? | 8 Relevance | 2 years ago | Sebastian | Theoretical questions | |
| Hi Aiden, To identify the anode and cathode of an LED, start with a visual inspection. Typically, the longer lead is the anode, and the shorter one is the cathode. If this method is not possible, another helpful visual indicator is the presence of a Flat spot on the LED’s rim, which marks the cathode. If the internal structure is visible, the larger metal piece (die) inside the LED is connected to the cathode. If visual cues are unclear, electrical testing can be performed. Using a multimeter set to diode mode, place the probes on the leads; a reading will indicate that the anode is connected to the positive probe. Alternatively, you can connect a battery and resistor, attaching the positive terminal to one lead. If the LED lights up, the connected lead is the anode. hope this will help | |||||
