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GHz Technology Inc. 3000 Oakmead Village Drive, Santa Clara, CA 95051-0808 Tel. 408 / 986-8031 Fax 408 / 986-8120
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 @ 25 C 5.3 Watts
o
Maximum Voltage and Current
BVces Collector to Emitter Voltage 50 Volts
BVebo Emitter to Base Voltage 3.5 Volts
Ic Collector Current 300 mA
Maximum Temperature s
Storage Temperature - 65 to + 150 C
o
Operating Junction Temperature + 150 C
o
ELECTRICAL CHARACTERISTICS @ 25 C
O
SYMBOL CHARACTERISTICS TEST CONDITIONS MIN TYP MAX UNITS
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
0.5
7.0 9.0
20
0.1
30:1
Watts
Watts
dB
%
BVebo
BVces
BVceo
Hfe
Cob
θjc
Emitter to Base Breakdown
Collector to Emitter Breakdo wn
Collector to Emitter Breakdo wn
DC Current Gain
Capacitance
Thermal Resistance
Ie = 1 mA
Ic = 10mA
Ic = 10 mA
Vce = 5 V, Ic = 100 mA
Vcb = 28V, f = 1 MHz
3.5
50
21
20 3.0
28 4.0
33
Volts
Volts
Volts
pF
C/W
o
Issue September 1995
2A8-2 (19.9V, 150mA)
MMICAD for Windows Mon Aug 29 10:57:36 1994
CIRCUIT: MES
FREQ --- S11 --- --- S21 --- --- S12 --- --- S22 ---
MAG ANG MAG ANG MAG ANG MAG ANG
0.100 0.58256 -131.579 22.1701 127.551 0.02296 38.1021 0.50355 -47.6776
0.200 0.69721 -157.306 13.3857 106.506 0.02914 35.1767 0.32372 -63.4932
0.300 0.72082 -169.421 9.38721 92.6214 0.03281 36.5742 0.24514 -70.3590
0.400 0.73289 -177.356 7.17730 84.4817 0.03663 40.7223 0.20597 -74.6703
0.500 0.73894 176.612 5.79952 78.9241 0.04030 43.8715 0.18545 -78.3614
0.600 0.74370 171.646 4.85629 73.0961 0.04460 45.9126 0.17459 -82.5275
0.700 0.74697 167.225 4.17743 66.4085 0.04940 47.7288 0.16913 -86.8291
0.800 0.75135 163.117 3.66591 61.2127 0.05474 49.0294 0.16707 -91.3152
0.900 0.75479 159.190 3.26970 56.2663 0.06006 50.3980 0.16801 -96.0809
1.000 0.75843 155.402 2.95578 51.6377 0.06583 50.7384 0.17052 -101.253
1.100 0.76057 151.751 2.69520 47.0738 0.07158 50.7936 0.17379 -106.206
1.200 0.76355 148.254 2.47842 42.5305 0.07795 50.9948 0.17962 -111.558
1.300 0.76826 144.891 2.29189 38.0578 0.08434 50.5094 0.18566 -117.113
1.400 0.77324 141.577 2.13343 33.6478 0.09089 49.8435 0.19282 -122.617
1.500 0.77915 138.183 1.99656 29.3024 0.09776 49.0596 0.19993 -127.898
1.600 0.78388 134.844 1.87375 25.0314 0.10492 48.1693 0.20907 -133.495
1.700 0.78745 131.474 1.76372 20.7708 0.11200 46.9091 0.21944 -139.103
1.800 0.79263 128.274 1.66452 16.5902 0.11937 45.6592 0.23029 -144.741
1.900 0.79854 125.121 1.57596 12.4613 0.12709 44.0501 0.24254 -150.401
2.000 0.80496 122.050 1.49424 8.34609 0.13469 42.5542 0.25538 -155.855
2.100 0.81108 118.898 1.41899 4.28438 0.14258 40.7972 0.26942 -161.473
2.200 0.81729 115.764 1.34821 0.25212 0.15051 39.0408 0.28455 -166.877
2.300 0.82291 112.708 1.28280 -3.66895 0.15865 37.2246 0.30054 -172.182
2.400 0.82893 109.712 1.22122 -7.45997 0.16667 35.3252 0.31709 -177.402
2.500 0.83552 106.842 1.16562 -11.1687 0.17539 33.2144 0.33489 177.560
2.600 0.84270 103.929 1.11343 -14.8560 0.18374 31.1471 0.35306 172.591
2.700 0.84869 101.084 1.06343 -18.4831 0.19201 28.9065 0.37223 167.749
2.800 0.85483 98.2150 1.01538 -22.0574 0.20065 26.5810 0.39154 162.993
2.900 0.86037 95.4016 0.96956 -25.4966 0.20878 24.1941 0.41071 158.460
3.000 0.86496 92.6534 0.92574 -28.7893 0.21708 21.8647 0.43073 154.114