I was looking for a PCB solderable female banana plug/ terminal (one straight and one right angled). 4mm should be ok.
But I am given current requirement to be 100Amp which is a DC pulsating current (where voltage=1500V). The duration of this instantaneous pulse current is only 50 micro second.
I have two questions here:
1- how do I choose a banana plug based on pulsating current? Any recommendation on banana jack part number?
2- is there any formula to convert pulsating DC value to steady value, since connector datasheet has values given for steady current and voltage values.
Never heard of a connector specification called "steady state current".
Connector currents are RMS currents.
--> calculate the RMS value of your pulsed current
Formulas are given in the forum many times and even more in the internet. A simple search for "pulsed current to RMS current" gives a lot of useful hits.
Banana Plugs are like Molex HDD connectors and are not rated for more than 15A.
If you show your restrictions there are better choices used on Welders with length/width ratio of everything get very low for low ESL.
If consider thermal time constants above 100 ms, any standard 4 mm connector should be able to stand the mentioned current pulses. I presume you don't expect the connector case to be 1500 V safe, although there are a few connectors available for this coltage range.
Your missing specs are the impedance of the 1.5 kV and 100 A, and the voltage drop on the connector during 100 A and the risetime expected.
Is there a repetition rate of the 50 us pulse ?
In other words, what is the load power vs desired loss in the connector is not defined. Is the load a flyback L or a C discharge or just R with minimal ESL?