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1214 - 55
55 Watts - 28 Volts, Pulsed
Radar 1200 - 1400 MHz
GENERAL DESCRIPTION
The 1214-55 is an internally matched, COMMON BASE transistor capable
of providing 55 Watts of pulsed RF output power at two milliseconds pulse
width, twenty percent duty factor across the band 1200 to 1400 MHz. This
hermetically solder-sealed transist or is specifically designed for L-Band rad ar
applications. It utilizes gold metalization and diffused emitter ballasting to
provide high reliability and supreme ruggedness.
CASE OUTLINE
55AW, STYLE 1
ABSOLUTE MAXIMUM RATINGS
Maximum Power Dissipation @ 25 C 175 Watts
o
Maximum Voltage and Current
BVces Collector to Emitter Voltage 50 Volts
BVebo Emitter to Base Voltage 3.5 Volts
Ic Collector Current 8 Amps
Maximum Temperature s
Storage Temperature - 65 to + 200 C
o
Operating Junction Temperature + 200 C
o
ELECTRICAL CHARACTERISTICS @ 25 C
O
SYMBOL CHARACTERISTICS TEST CONDITIONS MIN TYP MAX UNITS
Pout
Pin
Pg
ηc
VSWR
Power Out
Power Input
Power Gain
Collector Efficiency
Load Mismatch Tolerance
F = 1200-1400 MHz
Vcc = 28 Volts
Pulse Width = 2 ms
Duty = 20 %
F=1300MHz, Po=55W
55
6.5 7.0
45
12.3
3:1
Watts
Watts
d B
%
BVces
BVebo
Hfe
θjc
Collector to Emitter Breakdo wn
Emitter to Base Breakdown
DC Current Gain
Thermal Resistance
Ic =100 mA
Ie = 15 mA
Vce = 5 V,Ic = 1000 mA
Rated Pulse Condition
50
3.5
20 45
1.0
Volts
Volts
C/W
o
Issue August 1996
1214-55
Typical Impedances
August 1996
