DESCRIPTION:
The SD1224 is an epitaxial silicon NPN planar transistor designed primarily for 28 V FM Class C RF amplifiers utilized in ground station transmitters. This device utilizes ballasted emitter resistors and improved metallization systems to achieve optimum load mismatch capability.

FEATUREs
• 175 MHz
• 28 VOLTS
• CLASS C
• COMMON EMITTER
• EFFICIENCY 60% MIN.
• POUT = 40 W MIN.
• GP = 7.6 dB GAIN