0912-45
45 Watts, 50 Volts, Pulsed
Avionics 960 - 1215 MHz
GENERAL DESCRIPTION
The 0912-45 is a COMMON BASE bipolar transistor. It is designed for
pulsed systems in the frequency band 960-1215 MHz. The device has gold
thin-film metallization for proven highest MTTF. The transistor includes
input prematch for broadband capacity. Low thermal resistance package
reduces junction temperature, extends life.
CASE OUTLINE
55CX, 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
225 Watts
60 Volts
4.0 Volts
4.5 Amps
- 65 to + 150
o
C
+ 200
o
C
ELECTRICAL CHARACTERISTICS @ 25
O
C
SYMBOL
Pout
Pin
2
Pg
2
η
c
2
VSWR
BVebo
BVces
Cob
h
FE
CHARACTERISTICS
Power Out
Power Input
Power Gain
Collector Efficiency
Load Mismatch Tolerance
Emitter to Base Breakdown
Collector to Emitter Breakdown
Capacitance Collector to Base
DC - Current Gain
Thermal Resistance
TEST CONDITIONS
F = 960-1215 MHz
Vcc = 50 Volts
PW = 10
µsec
DF = 1%
F = 1090 MHz
Ie = 25 mA
Ic = 75 mA
Vcb = 50V
Ic = 300 mA, Vce = 5 V
MIN
45
7.0
8.0
9.0
45
10:1
4.0
60
20
10
0.8
o
TYP
MAX
UNITS
Watts
Watts
dB
%
Volts
Volts
pF
C/W
θjc
2
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
0912-45
0912-45
0912-45 BROADBAND CIRCUIT
C1 C2
50 VDC
R1
L1
L2
Input 50 Ohms
Z1
Z2
Q1
Z3
Z4
Z5
C7
50 Ohm Output
C3
C4
C5
C6
PC Board Material .010" Dielectric Teflon Fiberglass
Z1=50
W
, .08
l
, = .027"w X .59"L
Z2=2.7
,W
.064
l
, =.80"w X .44"L
Z3=10
W
, .062
l
, =.20"w X .443"L
Z4=3.7
W
, .08
l
, =.55"w X .55"L
Z5=50
W
, .075
l
, =.027"w X .56"L
L1= Inductor #14 wire, 0.7" long
L2= Inductor #18 wire, 1.5" long
August 1996
C1=Capacitor 100 pF "B" (100mil) ATC
C2=Capacitor 68mfd, 75V Electrolytic
C3, C4, C5, C6= Capacitor .35-3.5pF Piston Trimmer
C4=Capacitor 47pF "B" (100mil) ATC
R1= Resistor, 15WK 1/4W
Q1=GHz Transistor 0912-45
All electrical lengths taken at 1.09 GHz
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