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STMicroelectronics Electronic Components Datasheet

SD1898 Datasheet

RF & MICROWAVE TRANSISTORS 1.6 GHz SATCOM APPLICATIONS

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SD1898
RF & MICROWAVE TRANSISTORS
1.6 GHz SATCOM APPLICATIONS
......1.65 GHz
28 VOLTS
EFFICIENCY 40% MIN.
CLASS C OPERATION
COMMON BASE
POUT = 32 W MIN. WITH 9 dB GAIN
.400 SQ. 2LFL (M186)
epoxy sealed
ORDER CODE
SD1898
B RA ND IN G
1898
PIN CONNECTION
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DESCRIPTION
The SD1898 is a 28 V Class C silicon NPN tran-
sistor designed for INMARSAT and other 1.65 GHz
SATCOM applications. A gold metallized emitter-
ballasted die geometry is employed providing high
gain and efficiency while ensuring long term re-
liability and ruggedness under severe operating
conditions. SD1898 is packaged in a cost-effective
epoxy sealed housing.
1. Collector
2. Base
3. Emitter
4. Base
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C)
Symb ol
Parameter
VCBO
VCEO
VEBO
IC
PDISS
TJ
TSTG
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Device Current
Power Dissipation
Junction Temperature
Storage Temperature
Value
45
15
3.5
7.8
87.5
+200
65 to +150
Unit
V
V
V
A
W
°C
°C
THERMAL DATA
DataSheet4U.com RTH(j-c)
Junction-Case Thermal Resistance
November 1992
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2.0
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°C/W
1/4
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STMicroelectronics Electronic Components Datasheet

SD1898 Datasheet

RF & MICROWAVE TRANSISTORS 1.6 GHz SATCOM APPLICATIONS

No Preview Available !

SD1898 pdf
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SD1898
ELECTRICAL SPECIFICATIONS (Tcase = 25°C)
STATIC
S ymb o l
Test Conditions
BVCBO
BVCEO
BVEBO
hFE
IC = 10mA
IC = 10mA
IE = 10mA
VCE = 5V
IE = 0mA
IB = 0mA
IC = 0mA
IC = 2A
DYNAMIC
S ymb o l
POUT
GP
ηc
f = 1.65 GHz
f = 1.65 GHz
f = 1.65 GHz
Test Conditions
PIN = 4.0 W
PIN = 4.0 W
PIN = 4.0 W
VCE = 28 V
VCE = 28 V
VCE = 28 V
Value
Min. Typ. Max.
45 — —
12 — —
3.5 — —
15 — 150
Unit
V
V
V
V al u e
Min . Typ. Max.
32 — —
9.0 — —
40 — —
Unit
W
dB
%
et4U.com
TYPICAL PERFORMANCE
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POWER OUTPUT vs POWER INPUT
EFFICIENCY vs POWER INPUT
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Part Number SD1898
Description RF & MICROWAVE TRANSISTORS 1.6 GHz SATCOM APPLICATIONS
Maker ST Microelectronics
Total Page 4 Pages
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