JTDB 75
75 Watts, 36 Volts, Pulsed
Avionics 960 - 1215 MHz
GENERAL DESCRIPTION
CASE OUTLINE
55AW, STYLE 1
The JTDB 75 is a high power COMMON BASE bipolar transistor. It is
designed for pulsed systems in the frequency band 960-1215 MHz. The
device has gold thin-film metallization and diffused ballasting 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 @ 25oC2
220 Watts
Maximum Voltage and Current
BVces Collector to Base Voltage
BVebo Emitter to Base Voltage
55 Volts
3.5 Volts
8.0 Amps
Ic
Collector Current
Maximum Temperatures
Storage Temperature
Operating Junction Temperature
- 65 to + 200oC
+ 200oC
ELECTRICAL CHARACTERISTICS @ 25 OC
SYMBOL
CHARACTERISTICS
TEST CONDITIONS
MIN
TYP
MAX UNITS
Power Out
Power Input
Power Gain
Collector Efficiency
Load Mismatch Tolerance
F = 960-1215 MHz
Vcc = 36 Volts
75
Watts
Watts
dB
Pout
Pin
Pg
15
7.0
7.5
40
PW = 10 sec
µ
%
η
DF = 40%
F = 1090 MHz
c
3:1
VSWR
Emitter to Base Breakdown
Collector to Emitter Breakdown
DC - Current Gain
Ie = 30mA
Ic = 30 mA
Ic = 25 mA, Vce = 5 V
3.5
55
10
Volts
Volts
BVebo
BVces
hFE
oC/W
2
Thermal Resistance
0.8
θ
jc
Note 1: At rated output power and pulse conditions
2: At rated pulse conditions
Issue A, July 1997
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