RF & MICROWAVE TRANSISTORS
SATELLITE COMMUNICATIONS APPLICATIONS
• REFRACTORY/GOLD METALLIZATION
• EMITTER SITE BALLASTED
• ∞:1 VSWR CAPABILITY
• LOW THERMAL RESISTANCE
• INPUT/OUTPUT MATCHING
• OVERLAY GEOMETRY
• METALLIC/CERAMIC HERMETIC PACKAGE
• P
= 25 W MIN. WITH 8.5 dB GAIN
OUT
ORDER CODE
AM1517-025
AM1517-025
SO42
hermetically sealed
BRANDING
1517-25
PIN CONNECTION
DESCRIPTION
The AM1517-025 power transistor is designed
1
specifically for Satellite communications applications in the 1.5 - 1.7 frequency range.
The device is capable of withstanding any mismatch load condition at any phase angle (VSWR
∞:1) under full rated conditions. The unit is an
overlay, emitter site ballasted, geometry utilizing a
4
3
2
refractory/Gold metallization system.
The AM1517-025 is supplied in the AMPAC
TM
Hermetic/Ceramic package with internal Input/
Output matching structures.
ABSOLUTE MAXIMUM RATINGS(T
Symbol Parameter Value Unit
P
V
T
DISS
I
C
CC
T
STG
Power Dissipation* ( Tc≤ 500C)
Device Current* 2.5 A
Collector-Supply Voltage* 30 V
Junction Temperature 200 0
j
Storage Temperature -65 to +200 0
CASE
=250C)
1. Collector
2. Base
3. Emitter
4. Base
45 W
C
C
THERMAL DATA
R
th(j-c)
* Applies only to ratedRF amplifier operation
Junction-Case Thermal Resistance* 3.3
0
C/W
1/8May 2000
AM1517-025
ELECTRICAL SPECIFICATION(T
CASE
=250C)
STATIC
Symbol Parameter Min. Typ. Max. Unit
BV
CBOIC
BV
EBOIE
I
CBO
h
FE
= 8 mA IE=0mA
= 8 mA IC=0mA
VCB=28V
VCE=5V IC= 1.6 A
45 --- --- V
3.0 --- --- V
--- --- 2 mA
15 --- 150 ---
REF. 1015989D
DYNAMIC
Symbol Parameter Min. Typ. Max. Unit
P
OUT
η
G
f = 1.5 - 1.7 GHz PIN=3.5W VCC=28V
f = 1.5 - 1.7 GHz PIN=3.5W VCC=28V
D
f = 1.5 - 1.7 GHz PIN=3.5W VCC= 28 V 8.5 --- --- dB
P
25 --- --- W
50 -- --- %
Note: AM1517 series vary P
to achieve P
IN
; performance guaranteed in 50 MHz increments.
OUT
Alpha-Suffix added toAM1517 P/N desigates band segment.
M - 1620 - 1660 MHz
S - 1625 - 1675 MHz
2/8
TYPICAL PERFORMANCE
Output Power & Collector Efficiency vs Input Power Output Power vs Case Temperature
Collector Efficiency vs Case Temperature
AM1517-025
Output Power & Collector Efficiency vs Collector Voltage
Gain vs Case Temperature
3/8