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STMicroelectronics Electronic Components Datasheet

MSC81325M Datasheet

RF & MICROWAVE TRANSISTORS AVIONICS APPLICATIONS

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MSC81325M
RF & MICROWAVE TRANSISTORS
AVIONICS APPLICATIONS
....... REFRACTORY/GOLD METALLIZATION
EMITTER BALLASTED
RUGGEDIZED VSWR :1
INPUT/OUTPUT MATCHING
OVERLAY GEOMETRY
METAL/CERAMIC HERMETIC PACKAGE
POUT = 325 W MIN. WITH 6.7 dB GAIN
PRELIMINARY DATA
.400 x .400 2NLFL (S042)
hermetically sealed
ORDER CODE
MSC81325M
BRANDING
81325M
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DESCRIPTION
The MSC81325M device is a high power pulsed
transistor specifically designed for DME/TACAN
avionics applications.
This device is capable of withstanding an infinite
load VSWR at any phase angle under full rated
conditions. Low RF thermal resistance and semi-
automatic bonding techniques ensure high relia-
bility and product consistency.
The MSC81325M is housed in the industry-stand-
ard AMPAC™ metal/ceramic hermetic package
with internal input/output matching structures.
PIN CONNECTION
1. Collector
2. Base
3. Emitter
4. Base
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C)
Symbol
PDISS
IC
VCC
TJ
TSTG
Parameter
Power Dissipation* (TC 100˚C)
Device Current*
Collector-Supply Voltage*
Junction Temperature (Pulsed RF Operation)
Storage Temperature
THERMAL DATA
RTH(j-c) Junction-Case Thermal Resistance*
*Applies only to rated RF amplifier operation
Value
880
24
55
250
65 to +200
Unit
W
A
V
°C
°C
0.17 °C/W
October 1992
1/3


STMicroelectronics Electronic Components Datasheet

MSC81325M Datasheet

RF & MICROWAVE TRANSISTORS AVIONICS APPLICATIONS

No Preview Available !

MSC81325M
ELECTRICAL SPECIFICATIONS (Tcase = 25°C)
STATIC
Symbol
Test Conditions
BVCBO
BVEBO
BVCER
ICES
hFE
IC = 10mA
IE = 1mA
IC = 25mA
VBE = 0V
VCE = 5V
IE = 0mA
IC = 0mA
RBE = 10
VCE = 50V
IC = 1A
DYNAMIC
Symbol
Test Conditions
POUT
ηc
f = 1025 — 1150 MHz PIN = 70 W
f = 1025 — 1150 MHz PIN = 70 W
GP f = 1025 — 1150 MHz PIN = 70 W
Note:
Pulse Width = 10µSec
Duty Cycle = 1%
TEST CIRCUIT
VCC = 50 V
VCC = 50 V
VCC = 50 V
Value
Unit
Min. Typ. Max.
65 — — V
3.5 — — V
65 — — V
— — 25 mA
15 — 120 —
Value
Min. Typ. Max.
325 360 —
40 41 —
6.7 7.1 —
Unit
W
%
dB
All dimensions are in inches.
Ref.: Dwg. No. C127471
2/3


Part Number MSC81325M
Description RF & MICROWAVE TRANSISTORS AVIONICS APPLICATIONS
Maker STMicroelectronics
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MSC81325M Datasheet PDF






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