The requested file:
https://pdf.datasheetcatalog.com/datasheet/zetexsemiconductors/ztx320.pdf
is the data sheet for the following electronic components:

Zetex Semiconductors

#	Part Name	Description
1	ZTX320	NPN SILICON PLANAR HIGH SPEED SWITCHING TRANSISTORS
2	ZTX321	NPN RF Transistor-Not recommended for new designs
3	ZTX322	NPN SILICON PLANAR HIGH SPEED SWITCHING TRANSISTORS
4	ZTX323	NPN SILICON PLANAR HIGH SPEED SWITCHING TRANSISTORS

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