SERIES PSA
ATTENUATORS
Pill, Drop-in – DC-12.4 GHz
FEATURES
•
Laser Trimmed
•
Temperature Stable
•
100% Tested
•
Fixtures Available
RoHS
GENERAL INFORMATION
The PSA Series attenuators are “pill” devices designed for
installation in stripline circuits. The element is a thin film laser
trimmed chip, en-capsulated in an epoxy. The resilient spring
configuration provides positive ground plane contact, regard-
less of variations in ground plane spacing tolerances. The PSA
Series attenuators are ideal for high-rel applications.
ORDERING INFORMATION
The attenuators are available in 1 dB increments from 1 through
20 dB. Specify desired attenuation value by adding the
attenuation value to the basic series designation. (See note 4)
EXAMPLE:
PSA – X
Basic
Series
NOTES
1. Performance of other dB values vary dependent on attenuation.
Contact factory for specifications for fractional dB values.
2. Performance is typical and based on device mounted in
matched 50 ohm line.
3. Rated power 1.5 watts input.
4. Standard values 1, 2, 3, 4, 5, 6, 10, 20 dB.
Non-std values available as special order.
GENERAL SPECIFICATIONS
Impedance
Operating Temperature
Substrate
Resistive Element
Case, Cap & Tabs
50 ohms
-55°C to +1
50°C
96% Alumina
Proprietary Thin Film
Copper, Gold Plated per MIL-G-45204
dB
Value
PHYSICAL DIMENSIONS
.020[0.51] OFFSET
.060[15.2]
+.005[0.13]
–.002[0.05]
.250[6.4]
.250[6.4]
MIN
AVERAGE POWER DERATING CURVE
POWER DERATING
% OF RATED POWER
100
75
50
25
0
25
85
CASE TEMPERATURE
(SEE NOTE 3)
150
°C
MINIMUM EXPANDED HEIGHT .140[3.56]
.003 .001[0.08 0.03]
MAXIMUM COMPRESSED HEIGHT .121[3.07]
PSA
RESILIENT HOUSING
PERFORMANCE SPECIFICATIONS
Attenuation
Increment (dB)
Notes 1,4
1 -3
4-6
7 - 10
1 -1
1 5
16 - 20
Attenuation Accuracy (dB) Note 2
DC-4 GHz
±0.5
±0.5
±0.5
±0.75
±1.0
4-8 GHz
±0.5
±0.5
±0.5
+0.5
–3.0
+0.5
–4.0
8-1
2.4 GHz
±0.5
±0.5
±0.75
+0.5
–4.0
—
DC-4 GHz
1.25
1.25
1.25
1.25
1.25
1.25
VSWR (Typical) Note 2
4-8 GHz
1.35
1.35
1.35
1.35
1.35
1.35
8-1
2.4 GHz
1.50
1.50
1.50
1.50
—
—
KEY:
Inches [Millimeters] .XX ±.03 .XXX ±.010 [.X ±0.8 .XX ±0.25]
60 South Jefferson Road, Whippany, NJ 07981
Tel: 973-887-8100
•
Fax: 973-560-1372
www.aeroflex.com/kdi-resistor
•
kdi-resistor-sales@aeroflex.com
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