1618-35
35 Watt - 28 Volts, Class C
Microwave 1600 - 1800 MHz
GENERAL DESCRIPTION
The 1618-35 is a COMMON BASE transistor capable of providing 35 Watts
of Class C, RF output power over the band 1600-1800 MHz. This transistor is
designed for Microwave Broadband Class C amplifier applications. It includes
Input and Output prematching and utilizes Gold metalization and diffused
ballasting to provide high reliability and supreme ruggedness. The transistor
uses a fully hermetic High Temperature Solder sealed package.
CASE OUTLINE
55AW, STYLE 1
ABSOLUTE MAXIMUM RATINGS
Maximum Power Dissipation @ 25
o
C
Maximum Voltage and Current
BVces
Collector to Emitter Voltage
BVebo Emitter to Base Voltage
Ic
Collector Current
Maximum Temperatures
Storage Temperature
Operating Junction Temperature
135 Watts
45 Volts
3.5 Volts
12 A
- 65 to + 200
o
C
+ 200
o
C
ELECTRICAL CHARACTERISTICS @ 25
O
C
SYMBOL
Pout
Pin
Pg
CHARACTERISTICS
Power Out
Power Input
Power Gain
Collector Efficiency
Load Mismatch Tolerance
TEST CONDITIONS
F = 1600-1800 MHz
Vcb = 28 Volts
Pin = 7 Watts
As Above
F = 1.1 GHz, Pin = 7 W
MIN
35
7
7.0
40
10:1
TYP
MAX
UNITS
Watt
Watt
dB
%
畏
c
VSWR
1
BVces
BVebo
H
FE
Cob
胃
jc
Collector to Emitter Breakdown
Emitter to Base Breakdown
Current Gain
Output Capacitance
Thermal Resistance
Ic = 20 mA
Ie = 15 mA
Vce = 5 V, Ic = 1 A
F = 1 MHz, Vcb = 28V
45
3.5
10
Volts
Volts
100
1.3
o
pF
C/W
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
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