UMIL 25 25 Watts, 28 Volts, Class AB Defcom 225 - 400 MHz CASE OUTLINE GENERAL DESCRIPTION 55HV, Style 2 The UMIL 25 is an input matched COMMON EMITTER broadband transistor specifically intended for use in the 225-400 MHz frequency band. It may be operated in Class AB or C. Gold metallization and silicon diffused resistors ensure ruggedness and high reliability. ABSOLUTE MAXIMUM RATINGS Maximum Power Dissipation @ 25oC 70 Watts Maximum Voltage and Current BVces Collector to Emitter Voltage BVebo Emitter to Base Voltage Ic Collector Current Maximum Temperatures Storage Temperature Operating Junction Temperature 60 Volts 4.0 Volts 3A - 65 to +150 oC +200 oC ELECTRICAL CHARACTERISTICS @ 25 OC SYMBOL CHARACTERISTICS TEST CONDITIONS Pout Pin Pg ηc VSWR Power Output Power Input Power Gain Efficiency Load Mismatch Tolerance F = 400 MHz Vcc = 28 Volts BVebo BVces BVceo Cob hFE θjc Emitter to Base Breakdown Collector to Emitter Breakdown Collector to Emitter Breakdown Output Capacitance DC - Current Gain Thermal Resistance MIN TYP MAX 25 3.2 8.9 10 50 UNITS Watts Watts dB % 5:1 Ie = 5 mA Ic = 50 mA Ie = 50 mA Vcb = 28 V, F = 1 MHz Vce = 5 V, Ic = 500 A 4.0 65 33 22 27 Volts Volts Volts pF 10 2.5 o C/W Issue August 1996 GHz TECHNOLOGY INC. RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE. GHz RECOMMENDS THAT BEFORE THE PRODUCT(S) DESCRIBED HEREIN ARE WRITTEN INTO SPECIFICATIONS, OR USED IN CRITICAL APPLICATIONS, THAT THE PERFORMANCE CHARACTERISTICS BE VERIFIED BY CONTACTING THE FACTORY. GHz Technology Inc. 3000 Oakmead Village Drive, Santa Clara, CA 95051-0808 Tel. 408 / 986-8031 Fax 408 / 986-8120 UMIL25 August 1996