Hi,
does anybody know the specs for the plugs below according max. current or what such plugs normally have? I like to use it for an ambilight project to connect the LEDs (power and control lines) and the manufacturer does not note it in the specs. Originally they are used with microphones.
Thanks in advance,
Nils
I don't know the spec but I would think well below the current needed for LEDs, power etc. Microphone signals are of the order of microamps, orders of magnitude below what LEDs need, so plugs designed for low level audio signals will not carry much power. Plugs designed for power will have voltage and current ratings.
Those plugs have quite decent terminals. I would be perfectly happy to put signal and power lines through them, just as when used in a radio. I wouldn't want to have more than half an amp or so. For higher currents, you should be looking at car type multipole connectors. They are available in many combinations.
Another good choice depending on current is the standard D type connector. That is what I use for most of my projects.
I'd be comfortable putting 2-3 Amps through one of those connectors. D the connectors are much lower current, typically 0.5 - 1A.
Highest current is round about 2A at 5V. I used 2 pins for +/- each before looking into the specs. 
Found it in my box so thought it would be fine to use it. 
Generally round connectors are fairly solid, especially with screw-thread. 2 to 3A is a good guess for these.
The fact the 4-pin version of these connectors are commonly used for microphone plugs has nothing at all to
do with their ratings as they were not designed as microphone connectors, but as general purpose.
