DME800 800 Watts, 50 Volts Pulsed Avionics 1025 to 1150 MHz GENERAL DESCRIPTION CASE OUTLINE 55ST-1 The DME800 is a high power COMMON BASE bipolar transistor. It is (Common Base) designed for pulsed DME systems at 1025 to 1150 MHz, with the pulse width and duty required for DME applications. The device has gold thin-film metalization for proven highest MTTF. The transistor includes input and output prematch for broadband capability. Low thermal resistance package reduces junction temperature, extends life. ABSOLUTE MAXIMUM RATINGS Maximum Power Dissipation 1 Device Dissipation 25 C 2500 W Maximum Voltage and Current Collector to Base Voltage (BV) 65 V ces Emitter to Base Voltage (BV) 3 V ebo Collector Current (I) 50 A c Maximum Temperatures Storage Temperature -65 to +200 C Operating Junction Temperature +200 C ELECTRICAL CHARACTERISTICS 25C SYMBOL CHARACTERISTICS TEST CONDITIONS MIN TYP MAX UNITS P Power Out Pulse Width = 10 s, 800 1000 W out P Power Gain Pin = 100 Watts 9.0 10.0 dB g Vcc = 50 Volts Collector Efficiency 40 % c F = 1025-1150 MHz R Return Loss -9 dB L Long Term Duty Factor = 1% Tr Rise Time 200 ns Pd Pulse Droop 0.7 dB 1 VSWR Load Mismatch Tolerance 3.0:1 F = 1025 MHz FUNCTIONAL CHARACTERISTICS 25 C BV Emitter to Base Breakdown I = 20 mA 3.5 V ebo e BV Collector to Emitter Breakdown I = 50 mA 65 V ces c h DC Current Gain V = 5V, I = 600mA 20 FE ce c 2 jc Thermal Resistance 0.04 0.06 C/W NOTES: 1. At rated output power and pulse conditions 2. At rated pulse conditions Issued June 2003 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. DME800 Power Output & Efficiency vs. Power Input Power Output & Efficiency vs. Power Input F=1090 MHz F=1025 MHz 1400 70.0 1400 70.0 1200 60.0 1200 60.0 1000 50.0 1000 50.0 800 40.0 800 40.0 600 30.0 600 30.0 400 20.0 400 20.0 200 10.0 200 10.0 0 0.0 0 0.0 0 25 50 75 100 125 0 25 50 75 100 125 Power Input (Wpk) Power Input (Wpk) 1025 MHz Eff (%) 1090 MHz Eff (%) Power Output & Efficiency vs. Power Input F = 1150 MHz 1400 70.0 1200 60.0 1000 50.0 800 40.0 600 30.0 400 20.0 200 10.0 0 0.0 0 25 50 75 100 125 Power Input (Wpk) 1150 MHz Eff (%) 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. Power Output (Wpk) Power Output (Wpk) Efficiency - % Efficiency - % Power Output (Wpk) Efficiency - %