2A8 0.5 Watts, 20 Volts, Class A Linear to 2000 MHz GENERAL DESCRIPTION The 2A8 is a COMMON EMITTER transistor capable of providing 0.5 Watts of Class A, RF output power at 2000 MHz. This transistor is specifically designed for general Class A amplifier applicatons. It utilizes gold metalization and diffused ballasting to provide high reliability and supreme ruggedness. CASE OUTLINE 55EU, STYLE 2 ABSOLUTE MAXIMUM RATINGS Maximum Power Dissipation @ 25oC 5.3 Watts Maximum Voltage and Current BVces Collector to Emitter Voltage BVebo Emitter to Base Voltage Ic Collector Current 50 Volts 3.5 Volts 300 mA Maximum Temperatures Storage Temperature Operating Junction Temperature - 65 to + 150 oC + 150 oC ELECTRICAL CHARACTERISTICS @ 25 OC SYMBOL CHARACTERISTICS TEST CONDITIONS Pout Pin Pg ηc VSWR1 Power Out @ 1db Comp. Pt. Power Input Power Gain Efficiency Load Mismatch Tolerance F = 2.0 GHz Vcc = 20 Volts Ic = 150mA BVebo BVces BVceo Hfe Cob θjc Emitter to Base Breakdown Collector to Emitter Breakdown Collector to Emitter Breakdown DC Current Gain Capacitance Thermal Resistance MIN TYP MAX 0.5 0.1 7.0 9.0 20 UNITS Watts Watts dB % 30:1 Ie = 1 mA Ic = 10mA Ic = 10 mA Vce = 5 V, Ic = 100 mA Vcb = 28V, f = 1 MHz 3.5 50 21 20 Volts Volts Volts 3.0 28 4.0 33 o pF C/W Issue September 1995 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 2A8-2 (19.9V, 150mA) MMICAD for Windows Mon Aug 29 10:57:36 1994 CIRCUIT: MES FREQ --- S11 --MAG ANG 0.100 0.200 0.300 0.400 0.500 0.600 0.700 0.800 0.900 1.000 1.100 1.200 1.300 1.400 1.500 1.600 1.700 1.800 1.900 2.000 2.100 2.200 2.300 2.400 2.500 2.600 2.700 2.800 2.900 3.000 0.58256 -131.579 0.69721 -157.306 0.72082 -169.421 0.73289 -177.356 0.73894 176.612 0.74370 171.646 0.74697 167.225 0.75135 163.117 0.75479 159.190 0.75843 155.402 0.76057 151.751 0.76355 148.254 0.76826 144.891 0.77324 141.577 0.77915 138.183 0.78388 134.844 0.78745 131.474 0.79263 128.274 0.79854 125.121 0.80496 122.050 0.81108 118.898 0.81729 115.764 0.82291 112.708 0.82893 109.712 0.83552 106.842 0.84270 103.929 0.84869 101.084 0.85483 98.2150 0.86037 95.4016 0.86496 92.6534 --- S21 --MAG ANG 22.1701 127.551 13.3857 106.506 9.38721 92.6214 7.17730 84.4817 5.79952 78.9241 4.85629 73.0961 4.17743 66.4085 3.66591 61.2127 3.26970 56.2663 2.95578 51.6377 2.69520 47.0738 2.47842 42.5305 2.29189 38.0578 2.13343 33.6478 1.99656 29.3024 1.87375 25.0314 1.76372 20.7708 1.66452 16.5902 1.57596 12.4613 1.49424 8.34609 1.41899 4.28438 1.34821 0.25212 1.28280 -3.66895 1.22122 -7.45997 1.16562 -11.1687 1.11343 -14.8560 1.06343 -18.4831 1.01538 -22.0574 0.96956 -25.4966 0.92574 -28.7893 --- S12 --MAG ANG 0.02296 0.02914 0.03281 0.03663 0.04030 0.04460 0.04940 0.05474 0.06006 0.06583 0.07158 0.07795 0.08434 0.09089 0.09776 0.10492 0.11200 0.11937 0.12709 0.13469 0.14258 0.15051 0.15865 0.16667 0.17539 0.18374 0.19201 0.20065 0.20878 0.21708 38.1021 35.1767 36.5742 40.7223 43.8715 45.9126 47.7288 49.0294 50.3980 50.7384 50.7936 50.9948 50.5094 49.8435 49.0596 48.1693 46.9091 45.6592 44.0501 42.5542 40.7972 39.0408 37.2246 35.3252 33.2144 31.1471 28.9065 26.5810 24.1941 21.8647 --- S22 --MAG ANG 0.50355 -47.6776 0.32372 -63.4932 0.24514 -70.3590 0.20597 -74.6703 0.18545 -78.3614 0.17459 -82.5275 0.16913 -86.8291 0.16707 -91.3152 0.16801 -96.0809 0.17052 -101.253 0.17379 -106.206 0.17962 -111.558 0.18566 -117.113 0.19282 -122.617 0.19993 -127.898 0.20907 -133.495 0.21944 -139.103 0.23029 -144.741 0.24254 -150.401 0.25538 -155.855 0.26942 -161.473 0.28455 -166.877 0.30054 -172.182 0.31709 -177.402 0.33489 177.560 0.35306 172.591 0.37223 167.749 0.39154 162.993 0.41071 158.460 0.43073 154.114