| 1723881 | ZTX314 | Switching NPN transistor | FERRANTI |
| 1723882 | ZTX314 | NPN SILICON PLANAR HIGH SPEED SWITCHING TRANSISTOR | Zetex Semiconductors |
| 1723883 | ZTX320 | High frequency NPN transistor | FERRANTI |
| 1723884 | ZTX320 | NPN SILICON PLANAR HIGH SPEED SWITCHING TRANSISTORS | Zetex Semiconductors |
| 1723885 | ZTX321 | High frequency NPN transistor | FERRANTI |
| 1723886 | ZTX321 | NPN RF Transistor-Not recommended for new designs | Zetex Semiconductors |
| 1723887 | ZTX322 | NPN SILICON PLANAR HIGH SPEED SWITCHING TRANSISTORS | Zetex Semiconductors |
| 1723888 | ZTX323 | NPN SILICON PLANAR HIGH SPEED SWITCHING TRANSISTORS | Zetex Semiconductors |
| 1723889 | ZTX325 | High frequency NPN transistor | FERRANTI |
| 1723890 | ZTX325 | NPN RF Transistor | Zetex Semiconductors |
| 1723891 | ZTX326 | High frequency NPN transistor | FERRANTI |
| 1723892 | ZTX327 | High frequency NPN transistor | FERRANTI |
| 1723893 | ZTX327 | NPN SILICON PLANAR R.F. MEDIUM POWER TRANSISTOR | Zetex Semiconductors |
| 1723894 | ZTX330 | Low Noise NPN Transistor | FERRANTI |
| 1723895 | ZTX331 | Low Noise NPN Transistor | FERRANTI |
| 1723896 | ZTX337 | Medium power NPN transistor | FERRANTI |
| 1723897 | ZTX337A | Medium power NPN transistor | FERRANTI |
| 1723898 | ZTX337B | Medium power NPN transistor | FERRANTI |
| 1723899 | ZTX337C | Medium power NPN transistor | FERRANTI |
|
| 1723900 | ZTX337C | NPN SILICON PLANAR MEDIUM POWER TRANSISTOR | Zetex Semiconductors |
| 1723901 | ZTX338 | Medium power NPN transistor | FERRANTI |
| 1723902 | ZTX338A | Medium power NPN transistor | FERRANTI |
| 1723903 | ZTX338B | Medium power NPN transistor | FERRANTI |
| 1723904 | ZTX338C | Medium power NPN transistor | FERRANTI |
| 1723905 | ZTX341 | General purpose NPN transistor | FERRANTI |
| 1723906 | ZTX341 | NPN SILICON PLANAR SMALL SIGNAL TRANSISTOR | Zetex Semiconductors |
| 1723907 | ZTX342 | General purpose NPN transistor | FERRANTI |
| 1723908 | ZTX360 | Medium power NPN transistor | FERRANTI |
| 1723909 | ZTX360 | NPN SILICON PLANAR HIGH SPEED SWITCHING TRANSISTOR | Zetex Semiconductors |
| 1723910 | ZTX3702 | Medium power PNP transistors | FERRANTI |
| 1723911 | ZTX3703 | Medium power PNP transistors | FERRANTI |
| 1723912 | ZTX3704 | Medium power NPN transistor | FERRANTI |
| 1723913 | ZTX3705 | Medium power NPN transistor | FERRANTI |
| 1723914 | ZTX3706 | Medium power NPN transistor | FERRANTI |
| 1723915 | ZTX3707 | General purpose NPN transistor | FERRANTI |
| 1723916 | ZTX3707 | Low Noise NPN Transistor | FERRANTI |
| 1723917 | ZTX3708 | General purpose NPN transistor | FERRANTI |
| 1723918 | ZTX3709 | General purpose NPN transistor | FERRANTI |
| 1723919 | ZTX3710 | General purpose NPN transistor | FERRANTI |
| 1723920 | ZTX3711 | General purpose NPN transistor | FERRANTI |
