The requested file:
https://pdf.datasheetcatalog.com/datasheet_pdf/sanyo/STK2030_to_STK2250.pdf
is the data sheet for the following electronic components:

SANYO

#	Part Name	Description
1	STK2030	V(cc): +-48V; 4A; 2-channel pure comlementary DPP
2	STK2040	V(cc): +-54V; 5A; 2-channel pure comlementary DPP
3	STK2050	V(cc): +-59V; 5A; 2-channel pure comlementary DPP
4	STK2230	V(cc): +-48V; 4A; 2-channel pure comlementary DPP
5	STK2240	V(cc): +-54V; 5A; 2-channel pure comlementary DPP
6	STK2250	V(cc): +-59V; 5A; 2-channel pure comlementary DPP

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