The requested file:
https://pdf.datasheetcatalog.com/datasheets2/77/77951_1.pdf
is the data sheet for the following electronic components:

ISOCOM

#	Part Name	Description
1	IS201	HIGH DENSITY PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
2	IS202	HIGH DENSITY PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
3	IS203	HIGH DENSITY PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
4	IS204	HIGH DENSITY PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
5	ISD201	HIGH DENSITY PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
6	ISD202	HIGH DENSITY PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
7	ISD203	HIGH DENSITY PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
8	ISD204	HIGH DENSITY PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
9	ISQ201	HIGH DENSITY PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
10	ISQ202	HIGH DENSITY PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
11	ISQ203	HIGH DENSITY PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS
12	ISQ204	HIGH DENSITY PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS

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