G'day all!
I've started to need some very high-powered SCRs ("puck" or P30T package) for use in a gauss gun prototype.
The SCR I'm using is a TR956-250F-12. The spec sheet (which is in Russian, komrad) seems to imply a Vgt/Igt value of 2.0/400... which means it requires 2V@400mA (if I'm reading this right!).
However... Supplying 2-9V@400mA doesn't seem to be helping the darn thing trigger (this is with a "proof of concept" supply of 355VDC@250A or so).
I've tested all 3 units, and none of them trigger with this gate voltage/current.
Am I missing something important?
FYI, I'm using the anode connected to +350V, Cathode to coil, coil to ground, and a current-limited supply connected between the cathode lead (negative) and gate (positive).
All devices seem to test OK with a multimeter. No shorts, no opens, apart from what I'd expect.
Any advice would be greatly appreciated!
Cheers,
Pete
I've started to need some very high-powered SCRs ("puck" or P30T package) for use in a gauss gun prototype.
The SCR I'm using is a TR956-250F-12. The spec sheet (which is in Russian, komrad) seems to imply a Vgt/Igt value of 2.0/400... which means it requires 2V@400mA (if I'm reading this right!).
However... Supplying 2-9V@400mA doesn't seem to be helping the darn thing trigger (this is with a "proof of concept" supply of 355VDC@250A or so).
I've tested all 3 units, and none of them trigger with this gate voltage/current.
Am I missing something important?
FYI, I'm using the anode connected to +350V, Cathode to coil, coil to ground, and a current-limited supply connected between the cathode lead (negative) and gate (positive).
All devices seem to test OK with a multimeter. No shorts, no opens, apart from what I'd expect.
Any advice would be greatly appreciated!
Cheers,
Pete