MS2228 RF & MICROWAVE TRANSISTORS L-BAND RADAR APPLICATIONS Features • • • • • • 1090 MHz 50 VOLTS POUT = 75 WATTS GP = 9.2 dB MINMUM 10:1 VSWR CAPABILITY COMMON BASE CONFIGURATION DESCRIPTION: The MS2228 device is a high power Class C transistor specifically designed for L-Band Avionics transponder/interrogator pulsed output and driver applications. This device is capable of operation over a wide range of pulse widths, duty cycles, and is capable of withstanding 10:1 output VSWR at rated RF conditions. Internal input and output matching provide optimum performance and product consistency. ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C) Symbol PDISS IC Vcc TJ TSTG Parameter Power Dissipation Device Current Collector-Supply Voltage Junction Temperature Storage Temperature Value Unit 175 5.4 55 200 -65 to +200 W A V °C °C 0.86 °C/W Thermal Data RTH(J-C) Thermal Resistance Junction-case∗ Revision A, October 2009 Microsemi reserves the right to change, without notice, the specifications and information contained herein. Visit our web site at www.microsemi.com or contact our factory direct. MS2228 ELECTRICAL SPECIFICATIONS (Tcase = 25°C) STATIC Symbol BVCBO BVEBO BVCER ICES HFE Test Conditions IC = 10 mA IE = 4 mA IC = 20 mA VCE = 50 V VCE = 5 V IE = 0 mA IC = 0 mA RBE = 10Ω IC = 1 A Min. Value Typ. Max. 65 3.5 65 --10 ----------- ------6 --- V V V mA --- Min. Value Typ. Max. Unit Unit DYNAMIC Symbol POUT GP ηC Conditions: Test Conditions f = 1090 MHz PIN = 9W VCC = 50V 75 --- --- f = 1090 MHz PIN = 9W VCC = 50V 9.2 --- --- W dB f = 1090 MHz PIN = 9W VCC = 50V 48 --- --- % Pulse Width = 32 µsec Duty Cycle = 2% Microsemi reserves the right to change, without notice, the specifications and information contained herein. Visit our web site at www.microsemi.com or contact our factory direct. MS2228 IMPEDANCE DATA FREQ ZIN(Ω) ZCC(Ω) 1030 MHz 7.0 + j3.0 12.5 - j4.5 1090 MHz 11.0 + j1.5 13.0 - j3.0 PIN = 9.0W VCC = 50V TEST CIRCUIT Microsemi reserves the right to change, without notice, the specifications and information contained herein. Visit our web site at www.microsemi.com or contact our factory direct. MS2228 TYPICAL PERFORMANCE Microsemi reserves the right to change, without notice, the specifications and information contained herein. Visit our web site at www.microsemi.com or contact our factory direct. MS2228 PACKAGE MECHANICAL DATA Microsemi reserves the right to change, without notice, the specifications and information contained herein. Visit our web site at www.microsemi.com or contact our factory direct.