SERIESPPA
ATTENUATORS
HighPowerDC-4GHz
The Aeroflex/Inmet PPA Series of attenuators utilize a Beryllium
Oxide chip and thin film technology to provide devices which
can dissipate up to 100 Watts of RF power. The PPA series
must be thermally bonded to a heat sink, using the mounting
holes provided, in order to operate within the temperature
rating indicated. The flange temperatures must not exceed
100C under rated power conditions.
GENERALSPECIFICATIONS
ORDERINGINFORMATION
Impedance 50 Ohms
The Power Attenuators listed are available in 1 dB increments
from 1 thru 20 dB. Specify by selecting any of the series listed
Operating Temp. 55C to +150C
and add the attenuation value desired to the basic series
Attenuation Stability 0.0001 dB/dB/C
designation. (See Note 3)
Substrate Beryllium Oxide Ceramic
Resistive Element Proprietary Thin Film
PPA 20-10
Flange Copper, Nickel Plated per QQ-N-290
Basic Desired dB
Tabs Beryllium Copper, Gold Plated per MIL-G-45204
Series PPA Power Value
Cover Alumina Ceramic
PERFORMANCESPECIFICATIONS
(1)
Attenuation Input Attenuation Accuracy (1)
(1)
1 dB Increments Frequency Power (dB) VSWR
2
Model (dB) Range (Watts) dB DC-1 GHz 1-2.5 GHz 2.5-4 GHz (Typical)
PPA 10 1-20 DC-4 GHz 10 1-10 0.5 0.5 1.0 1.3:1
11-20 1.0 2.0 3.0
PPA 20 1-20 DC-4 GHz 20 1-5 0.5 0.5 0.5
6-9 0.5 0.5 1.0 1.15:1 DC-1.0 GHz
10-15 0.75 1.0 1.5 1.35:1 1.0-2.5 GHz
16-20 1.0 2.0 3.0 1.50:1 2.5-4.0 GHz
PPA 50 1-20 DC-1 GHz 50 0.3 DC-500 MHz 1.25:1 DC-500 MHz
0.5 500 MHz-1 GHz 1.50:1 500 MHz1 GHz
PPA 100 1-20 DC-500 MHz 100 0.5 1.25:1 DC-200 MHz
1.50:1 200-500 MHz
PHYSICALDIMENSIONS
.040 [1.02] x .003.001 [0.08 0.03]
NOTES .375 [9.52]
.005.001 THK
.060 [1.52] TYP
.171 [4.34]
1.Customproducts [0.130.03]
.116 [2.95] DIA.
.175 [4.45]
areavailable
.160 [4.06] MAX.
athigher
.125 [3.18] MIN. .125 [3.18]
frequencies
TYP
THRU 2 PLS
withoptimized
VSWRand .300 [7.62]
.375 [9.53]
attenuation
accuracyover
.100 [2.54]
.250 [6.35]
.100 [2.54]
narrowfrequency
.200 [5.08]
MIN TYP
bandwidths. .062 [1.58]
.725 [18.42]
2.VSWRasmeasured
.110 [2.79]
.125 [3.18]
ina0.125ground
.105 [2.67] .200 [5.08]
.975 [24.77]
planestriplinecircuit.
MAX
3.Standardvalues PPA10 OUTLINE
PPA50 OUTLINE
1,2,3,4,5,6,10,20dB.
.003.001 [0.08 0.03]
1.250 [31.75]
Non-stdvaluesavailable
.060 [1.52] x
.875 [22.23]
.003.001 THK
asspecialorder. .171 [4.34]
[0.080.03] .405 [10.29]
.150 [3.81] MAX. .188 [4.76]
.250 [6.35] MIN.
TYP
.116 [2.95] DIA.
.515 [13.08]
.500 [12.70]
.250 [6.35]
.250 [6.35]
MIN
.250 [6.35]
.125 [3.18]
.125 [3.18] .062 [1.58]
MIN TYP
.250 [6.35]
.060 [1.52] TYP .125 [3.18]
.500 [12.70] .210 [5.33]
MAX
.160 [4.06]
.105 [2.67]
THRU PLS
PPA20 OUTLINE PPA100 OUTLINE
KEY: Inches [Millimeters] .XX .03 .XXX .010 [.X 0.8 .XX 0.25]
300DinoDrive,AnnArbor,MI48103
Tel:888-244-6638or734-426-5553Fax:734-426-5557
REV 04/11
www.aeroflex.com/inmetinmetsales@aeroflex.comX-ON Electronics
Largest Supplier of Electrical and Electronic Components
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