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User Name Stay logged in? Help me distinguish the IRF They look like mine, nice fets. Find More Posts by Magura. I've never seen IR parts in that sort of TO-3 package with the "figure 8" slug insert.
All mine are in plain steel TO-3s. They may be phony or remarked parts from a second or third rate manufacturer. First off, I'd test the gate-source pins to make sure the things are even mosfets. If they were really IR product, why would they need re-marking?
The only legitimate parts I've seen in those TO-3 packages are parts from vendors like Toshiba and Sanken from back in the '80s. Thank everyone ,I had read all reply though my poor Enlish, maybe MR. Attached Images As far as I know, IR never used the mil pins large size on anything smaller than their size 5 die, so the part with the big pins could be a re-marked IRF or IRF, for that matter.
The parts with the "figure 8" inserts are probably re-marked Japanese mosfets and not IR product at all. Will they work in the same application? Try them and see. They may be HV mosfets with a much higher on-resistance, though. BB code is On. Smilies are On. Forum Rules. All times are GMT. The time now is AM. Resources saved on this page: MySQL User Name. Stay logged in? Mark Forums Read. Pass Labs This forum is dedicated to Pass Labs discussion.
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IRF244 Datasheet PDF
User Name Stay logged in? Help me distinguish the IRF They look like mine, nice fets. Find More Posts by Magura. I've never seen IR parts in that sort of TO-3 package with the "figure 8" slug insert. All mine are in plain steel TO-3s. They may be phony or remarked parts from a second or third rate manufacturer.
IRF244 Transistor. Datasheet pdf. Equivalent
TO-220 Mosfet power Transistor IRF244 IRFZ44 IRF244N IRFZ44N