shawn posted:Just really posting a question/ A the availability of AC LED's. Which have two led's back to back with the capacitor integral to the package. I believe I lost the LEDS on my test lighting board due to votlae spikes from derailment. I believe the series cap would help? Although, the frequency and the duration of the spike may not be subdued by the capacitor?
I can't imagine the cap being better than the resistor, and I don't see any reason to use a bulkier and more expensive component. The one penny (or less) resistor is just fine for me. In point of fact, the capacitor will actually pass a spike better than the resistor, so if anything, it would be worse! The capacitive reactance is being calculated on 60hz, the spike is a much faster rise time, hence it will blow right through the capacitor at full amplitude. The resistor, OTOH, always has the same resistance, no matter what the frequency. New and different isn't always better!
