NEW Semikron Semipack Contact Block Semiconductors / Thyristor # a1-116-001-004 These are great and you get a deal on this one. These are very hard to find. This can hold and give a charge. 25 KVDC. Come on, you can find 'em like that!!! 7" high by approximately 3 inches OD. This price is for one. If you want multiples I will give you a discount. It came from working environment and if it does not work for you I will refund. Will ship international. FREE USA SHIP DISCLAIMER - as with all my items, you are buying AS-IS. I will give a refund within 14 days if these dont work, but you are buying these as-is - seller not responsible for any issues with these. please ask questions. Please look at pictures.