Difference between thyristor I(tsm) and I T(AV)

Asked Oct 20 '22 at 10:39

Active Oct 20 '22 at 13:03

Viewed 68 times

For example I have a capacitor send intermittent pulses to a coil

send about 85A for few msec then off for 3-4 seconds (for 5mins)

I was looking for a scr to switch it

i found 40tps12 thyristor

Has I(tsm) 500-600A for 10 msec

And I T(AV) 35A

So should i consider this thyristor can stand with 85A as its I(tsm) up to 600A or can not stand with as its I T(AV) is lower than 85A

Means which should i consider?

edited Oct 20 '22 at 13:03

asked Oct 20 '22 at 10:39

Tito

You need to show a proposed schematic. – Andy aka Oct 20 '22 at 10:53
@Andyaka updated – Tito Oct 20 '22 at 12:46
To be sure, calculate I2t and I2sqrt(t) of your pulse ... Be aware of the "large" current when charging your capacitor ... – Antonio51 Oct 20 '22 at 15:33
For help, this document ... https://m.littelfuse.com/~/media/automotive/catalogs/littelfuse_fuseology.pdf – Antonio51 Oct 20 '22 at 16:38
See also https://electronics.stackexchange.com/questions/368780/thyristor-scr-i2t-and-i2-sqrtt-rating – Antonio51 Oct 20 '22 at 19:49
Yes, that SCR should work. Please follow all the warnings in your previous related posts. – Mattman944 Oct 20 '22 at 20:47

0 Answers0