DME 500
500 Watts, 50 Volts, Pulsed
Avionics 1025 - 1150 MHz
GENERAL DESCRIPTION
The DME 500 is a high power COMMON BASE bipolar transistor. It is
designed for pulsed systems in the frequency band 1025-1150 MHz. The
device has gold thin-film metallization for proven highest MTTF. The
transistor includes input and output prematch for broadband capability. Low
thermal resistance package reduces junction temperature, extends life.
CASE OUTLINE
55KT, STYLE 1
ABSOLUTE MAXIMUM RATINGS
Maximum Power Dissipation @ 25
o
C
2
Maximum Voltage and Current
BVces
Collector to Base Voltage
BVebo Emitter to Base Voltage
Ic
Collector Current
Maximum Temperatures
Storage Temperature
Operating Junction Temperature
1700 Watts
55 Volts
3.5 Volts
40 Amps
- 65 to + 200
o
C
+ 200
o
C
ELECTRICAL CHARACTERISTICS @ 25
O
C
SYMBOL
Pout
Pin
Pg
η
c
VSWR
BVebo
BVces
h
FE
CHARACTERISTICS
Power Out
Power Input
Power Gain
Collector Efficiency
Load Mismatch Tolerance
Emitter to Base Breakdown
Collector to Emitter Breakdown
DC - Current Gain
Thermal Resistance
TEST CONDITIONS
F = 1025-1150 MHz
Vcc = 50 Volts
PW = 10
µsec
DF = 1%
F = 1090 MHz
Ie = 30 mA
Ic = 40 mA
Ic = 500 mA, Vce = 5 V
MIN
500
125
6.0
6.5
35
10:1
3.5
55
10
Volts
Volts
100
0.1
o
TYP
MAX
UNITS
Watts
Watts
dB
%
θjc
2
C/W
Note 1: At rated output power and pulse conditions
2: At rated pulse conditions
Initial Issue June, 1994
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
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