The requested file:
https://pdf.datasheetcatalog.com/datasheets2/36/366813_1.pdf
is the data sheet for the following electronic components:

etc

#	Part Name	Description
1	HC-107	Hybrid Assemblies OPTIC RECEIVER MODULES
2	HC-137	Hybrid Assemblies OPTIC RECEIVER MODULES
3	HC-137M	Hybrid Assemblies OPTIC RECEIVER MODULES
4	HC-177	Hybrid Assemblies OPTIC RECEIVER MODULES
5	HC-177M	Hybrid Assemblies OPTIC RECEIVER MODULES
6	HC-237	Hybrid Assemblies OPTIC RECEIVER MODULES
7	HC-237M	Hybrid Assemblies OPTIC RECEIVER MODULES
8	HC-247	Hybrid Assemblies OPTIC RECEIVER MODULES
9	HC-278	Hybrid Assemblies OPTIC RECEIVER MODULES
10	HC-278M	Hybrid Assemblies OPTIC RECEIVER MODULES
11	HC-307	Hybrid Assemblies OPTIC RECEIVER MODULES
12	HC-319B	Hybrid Assemblies OPTIC RECEIVER MODULES
13	HC-327M	Hybrid Assemblies OPTIC RECEIVER MODULES
14	HC-337	Hybrid Assemblies OPTIC RECEIVER MODULES
15	HC-337M	Hybrid Assemblies OPTIC RECEIVER MODULES
16	HC-341F	Hybrid Assemblies OPTIC RECEIVER MODULES
17	HC-341M	Hybrid Assemblies OPTIC RECEIVER MODULES
18	HC-377	Hybrid Assemblies OPTIC RECEIVER MODULES
19	HC-427M	Hybrid Assemblies OPTIC RECEIVER MODULES
20	HC-430	Hybrid Assemblies OPTIC RECEIVER MODULES
21	HC-437M	Hybrid Assemblies OPTIC RECEIVER MODULES
22	HC-477	Hybrid Assemblies OPTIC RECEIVER MODULES
23	HC-477M	Hybrid Assemblies OPTIC RECEIVER MODULES
24	HC-521	Hybrid Assemblies OPTIC RECEIVER MODULES
25	HC-523	Hybrid Assemblies OPTIC RECEIVER MODULES
26	HC-537	Hybrid Assemblies OPTIC RECEIVER MODULES
27	HC-537M	Hybrid Assemblies OPTIC RECEIVER MODULES
28	HC-577	Hybrid Assemblies OPTIC RECEIVER MODULES
29	HC-577M	Hybrid Assemblies OPTIC RECEIVER MODULES
30	HC-630	Hybrid Assemblies OPTIC RECEIVER MODULES
31	HC-637M	Hybrid Assemblies OPTIC RECEIVER MODULES
32	HC-677	Hybrid Assemblies OPTIC RECEIVER MODULES
33	HC-677M	Hybrid Assemblies OPTIC RECEIVER MODULES
34	HC-707	Hybrid Assemblies OPTIC RECEIVER MODULES

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