Datasheet Summary
MOTOROLA
The RF Line
SEMICONDUCTOR TECHNICAL DATA
Order this document by MRF455/D
NPN Silicon RF Power Transistor
. . . designed for power amplifier applications in industrial, mercial and amateur radio equipment to 30 MHz.
- Specified 12.5 Volt, 30 MHz Characteristics
- Output Power = 60 Watts Minimum Gain = 13 dB Efficiency = 55% MATCHING PROCEDURE In the push- pull circuit configuration it is preferred that the transistors are used as matched pairs to obtain optimum performance. The matching procedure used by Motorola consists of measuring h FE at the data sheet conditions and color coding the device to predetermined hFE ranges within the normal hFE limits. A color dot is added to...
