ADVANCED POWER TECHNOLOGY RI- UMIL 3 3 Watts, 28 Volts, Class AB Defcom 225 - 400 MHz GENERAL DESCRIPTION CASE OUTLINE The UMIL3 is a COMMON EMITTER broadband transistor specifically intended for use in the 225-400 MHz frequency band. It may be operated in SSFT, Style 2 Class AB or C. Gold metallization and silicon diffused resistors ensure ruggedness and high reliability. ABSOLUTE MAXIMUM RATINGS Maximum Power Dissipation @ 25C 11 Watts Maximum Voltage and Current BVces Collector to Emiter Voltage 55 Volts BVebo Emitter to Base Voltage 4.0 Volts Ic Collector Current O.7 A Maximum Temperatures Storage Temperature - 65 to +150C Operating Junction Temperature +150C ELECTRICAL CHARACTERISTICS @ 25 C SYMBOL | CHARACTERISTICS TEST CONDITIONS | MIN TYP | MAX | UNITS Pout Power Output F = 400 MHz 3 Watts Pin Power Input Vec = 28 Volts 0.2 Watts Pg Power Gain 11.8 13 dB Ne Efficiency 60 % VSWR Load Mismatch Tolerance 30:1 BVebo Emitter to Base Breakdown le = 5mA 4.0 Volts BV ces Collector to Emitter Breakdown Ic = 20mA 55 Volts BVceo Collector to Emitter Breakdown le = 50mA 30 Volts Cob Output Capacitance Vcb = 28 V, F= 1 MHz 4.5 pF Neg DC - Current Gain Vece=5V,Ic=100A 10 45 150 je Thermal Resistance 16 C/W Issue August 1996 Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein. Visit our web site at WWW.ADVANCEDPOWER.COM or contact our factory direct.