1966 Planar Power Selection guide
EN
8 Pages
2,8MB
The Fairchild 1966 Planar Power Selection Guide is a major historical reference in industrial power electronics and semiconductor engineering. This technical catalog provides a complete overview of Fairchild PLANAR power transistors, silicon controlled rectifiers (SCRs), industrial switching devices and high-power semiconductor packages specifically developed for demanding industrial and military environments.
The guide includes numerous high-performance semiconductor references such as:
- 2N4111
- 2N4115
- 2N4116
- 2N2890
- 2N2893
- FT34A
- FT34B
- FT400A
- FT400B
- SE9020
- SE9540
- SE9041
These semiconductor devices were designed for industrial power supplies, switching systems, RF power stages, motor control circuits and high-current applications requiring exceptional thermal stability and long-term reliability.
One of the most valuable aspects of this databook is its detailed technical information regarding:
- collector-emitter voltage ratings (BVCEO)
- gain hFE characteristics
- transition frequencies fT
- power dissipation
- thermal behavior
- package configuration
- isolated collector designs
- secondary breakdown protection
- current-sharing technologies
The document also highlights Fairchild’s advanced PLANAR process technology and integrated nickel-chromium thin-film emitter resistors designed to reduce secondary breakdown and improve current distribution in high-power transistors.
This catalog remains highly relevant for:
- industrial electronics repair
- obsolete semiconductor replacement
- power transistor diagnostics
- restoration of industrial machines
- vintage power supply repair
- industrial maintenance engineering
- high-power semiconductor retrofitting


