140 COMMERCE DRIVE MONTGOMERYVILLE, PA 18936-1013 PHONE: (215) 631-9840 FAX: (215) 631-9855 MS1253 RF & MICROWAVE TRANSISTORS HF/VHF APPLICATIONS Features * * * * * 50 MHz 12.5 VOLTS POUT = 70 WATTS Gp = 10 dB MINIMUM COMMON EMITTER CONFIGURATION DESCRIPTION: DESCRIPTION The MS1253 is a 12.5 V Class C epitaxial silicon NPN transistor designed primarily for land mobile transmitter applications. This device utilizes emitter ballasting, is extremely stable and capable of withstanding high VSWR under operating conditions. ABSOLUTE MAXIMUM RATINGS (Tcase = 25 C) Symbol VCBO VCEO VEBO PDISS IC TJ T STG Parameter Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Power Dissipation Device Current Junction Temperature Storage Temperature Value Unit 45 18 3.5 183 12.0 200 -65 to +150 V V V W A C C 1.05 C/W Thermal Data RTH(J-C) Thermal Resistance Junction-case MSCXXXX.PDF 01-19-99 140 COMMERCE DRIVE MONTGOMERYVILLE, PA 18936-1013 PHONE: (215) 631-9840 FAX: (215) 631-9855 MS1253 ELECTRICAL SPECIFICATIONS (Tcase = 25 25 C) STATIC Symbol BVcbo BVces BVebo BVceo Ices HFE Test Conditions IC = 50 mA IC = 100 mA IE = 10 mA IE = 50 mA VCE = 15 V VCE = 5 V IE = 0 mA VBE = 0 V IE = 0 mA IB = 0 mA IE = 0 mA IC = 5 A Min. Value Typ. Max. Unit 45 40 3.5 18 --10 ------------- --------10 200 V V V V mA --- Min. Value Typ. Max. Unit DYNAMIC Symbol Test Conditions POUT f = 50 MHz PIN = 7W VCE = 12.5V 70 --- --- W GPE f = 50 MHz PIN = 7W VCE = 12.5V 10 --- --- dB C f = 50 MHz PIN = 7W 45 --- --- % Cob f = 1 MHz --- --- 300 pf VCB = 12.5 V IMPENDANCE DATA FREQ ZIN() ZCL() 50 MHz 0.8 + j0.9 1.2 + j0.6 POUT = 70W VCE = 12.5V MSCXXXX.PDF 01-19-99 VCE = 12.5V 140 COMMERCE DRIVE MONTGOMERYVILLE, PA 18936-1013 PHONE: (215) 631-9840 FAX: (215) 631-9855 MS1253 PACKAGE MECHANICAL DATA MSCXXXX.PDF 01-19-99