PCB solderable Banana Plug Terminal (female)

[sapphire_2010]

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.

 

[KlausST]

1- how do I choose a banana plug based on pulsating current? Any recommendation on banana jack part number?

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.

Klaus

 

[D.A.(Tony)Stewart]

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.

 

[FvM]

MC 4 mm series is rated 24 to 35 A (now staubli.com) https://www.staubli.com/content/dam/ecs/catalogs-brochures/TM/TM-Main-11014124-en.pdf

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.

 

[D.A.(Tony)Stewart]

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?