The requested file:
https://pdf.datasheetcatalog.com/datasheet/irf/50ria.pdf
is the data sheet for the following electronic components:

International Rectifier

#	Part Name	Description
1	50RIA10	100V 50A Phase Control SCR in a TO-208AC (TO-65) package
2	50RIA100	1000V 50A Phase Control SCR in a TO-208AC (TO-65) package
3	50RIA120	1200V 50A Phase Control SCR in a TO-208AC (TO-65) package
4	50RIA120M	1200V 50A Phase Control SCR in a TO-208AC (TO-65) package
5	50RIA140	1400V 80A Phase Control SCR in a TO-208AC (TO-65) package
6	50RIA160	1600V 80A Phase Control SCR in a TO-208AC (TO-65) package
7	50RIA20	200V 50A Phase Control SCR in a TO-208AC (TO-65) package
8	50RIA40	400V 50A Phase Control SCR in a TO-208AC (TO-65) package
9	50RIA60	600V 50A Phase Control SCR in a TO-208AC (TO-65) package
10	50RIA80	800V 50A Phase Control SCR in a TO-208AC (TO-65) package
11	50RIA80M	800V 50A Phase Control SCR in a TO-208AC (TO-65) package

Select the part name and then you can download the datasheet in PDF format.