140 COMMERCE DRIVE MONTGOMERYVILLE, PA 18936-1013 PHONE: (215) 631-9840 FAX: (215) 631-9855 MS2208 RF & MICROWAVE TRANSISTORS AVIONICS APPLICATION Features • • • • • HERMETIC METAL/CERAMIC PACKAGE LOW THERMAL RESISTANCE 10:1 LOAD VSWR CAPABILITY BALLASTED OVERLAY GEOMETRY COMMON EMITTER CONFIGURATION DESCRIPTION: THE MS2208 DEVICE IS A HIGH POWER CLASS C TRANSISTOR SPECIFICALLY DESIGNED FOR L-BAND AVIONIC APPLICATIONS INVOLVING HIGH PULSE BURST DUTY CYCLES. THE DEVICE IS CAPABLE OF OPERATION OVER A WIDE RANGE OF PULSE WIDTHS, DUTY CYCLES AND TEMPERATURES. ABSOLUTE MAXIMUM RATINGS (Tcase = 25°°C) Symbol PDISS Parameter Power Dissipation* (TC≤100ºC) IC VCC TJ T STG Device Current * Collector Supply Voltage* Junction Temperature Storage Temperature Value Unit 1360 W 27 55 250 -65 to +200 A V °C °C 0.11 °C/W Thermal Data RTH(J-C) Junction - Case Thermal Resistance *Applies only to rated RF amplifier operation MSC0926.PDF 10-09-98 MS2208 ELECTRICAL SPECIFICATIONS (Tcase (Tcase = 25° 25° C) STATIC Symbol Bvebo Bvcbo Bvces Ices HFE Test Conditions IE = 30 mA IC = 50 mA IC = 50 mA VBE = 50 mA VCE = 5.0 V IC=0 mA IC=0 mA VBE=0 V VCE=50 V IC=1 A Min. Value Typ. Max. Unit 3.0 70 70 --10 ----------- ------40 200 V V V mA B DYNAMIC Symbol Min. Value Typ. Max. Unit Pin = 70W f=1090 MHz VCC=50V 500 --- --- W ηc Pout f=1090 MHz VCC=50V 40 --- --- % GP Pout f=1090 MHz VCC=50V 8.5 --- --- dB Pout Load Mismatch Conditions Test Conditions Pout =500W Peak f=1090 MHz, Vcc=50V, VSWR=10:1, 10µ µsec, 1% Duty, VSWR=5:1, 32µ µsec, 2% Duty Pulse width=32µ µsec, Duty Cycle= 2% IMPEDANCE DATA ZIN(Ω) FREQ ZCL(Ω) 1030 MHz 4.35+ j 6.97 1.38- j 4.08 1090 MHz 4.38+ j 2.75 0.874- j 3.55 1120 MHz 4.69+ j 2.95 1.3- j 4.97 PIN=70W VCC=50V MSC0926.PDF 10-09-98 MS2208 PACKAGE MECHANICAL DATA MSC0926.PDF 10-09-98