Semikron thyristor SKKT 132/18E thyristor diode Module removed new. Condition is therefore listed as refurb as I think those panels were powered up for original test. Shipped with USPS. As best as I recall, These were removed from new panels around 8-10 years ago. They were assembled but never sold. I have 6 total (sale is for 1, contact me if you need more).