SERIES PSA
ATTENUATORS
Pill, Drop-in – DC-12.4 GHz
RoHS
ꢀ
FEATURES
• Laser Trimmed
• 1ꢀꢀ% Tested
• Temperature Stable
• Fixtures Available
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
GENERAL SP ECIFICATIONS
The attenuators are available in 1 dB increments from 1 through
ꢂꢀ dB. Specify desired attenuation value by adding the
attenuation value to the basic series designation. (See note 4)
Impedance
50 ohms
Operating Temperature -55°C to +150°C
Substrate
96% Alumina
Resistive Element
Case, Cap & Tabs
Proprietary Thin Film
EXAMPLE:
Copper, Gold Plated per MIL-G-45204
PSA
–
X
Basic
dB
Series Value
P HYSICAL DIMENSIONS
NOTES
.020[0.51] OFFSET
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.
.060[15.2]
4. Standard values 1, 2, 3, 4, 5, 6, 10, 20 dB.
Non-std values available as special order.
.250[6.4]
MIN
+.005[0.13]
–.002[0.05]
.250[6.4]
AVERAGE P OWER DERATING CU RVE
POWER DERATING
MINIMUM EXPANDED HEIGHT .140[3.56]
100
75
50
25
0
.003 .001[0.08 0.03]
MAXIMUM COMPRESSED HEIGHT .121[3.07]
25
85
150 °C
PSA
CASE TEMPERATURE
(SEE NOTE 3)
RESILIENT HOUSING
P ERFORMANCE SP ECIFICATIONS
Attenuation
Increment (dB)
Notes 1,4
Attenuation Accuracy (dB) Note 2
VSWR (Typical) Note 2
DC-4 GHz
4-8 GHz
0.5
8-12.4 GHz
DC-4 GHz
1.25
4-8 GHz
1.35
8-12.4 GHz
1.50
1 -3
4 - 6
0.5
0.5
0.5
0.5
0.5
1.25
1.35
1.50
7 - 10
11 - 15
0.5
0.5
0.75
1.25
1.35
1.50
0.75
+0.5
–3.0
+0.5
–4.0
1.25
1.35
1.50
16 - 20
1.0
+0.5
–4.0
—
1.25
1.25
1.35
1.35
—
—
KEY: Inches [Millimeters] .XX .ꢀ0 .XXX .ꢀ1ꢀ [.X ꢀ.ꢁ .XX ꢀ.ꢂ5]
60 South Jefferson Road, Whippany, NJ 07981
Tel: 973-887-8100 • Fax: 973-560-1372
KDI-RESISTOR PRODUCTS
www.aeroflex.com/kdi-resistor • kdi-resistor-sales@aeroflex.com
REV 0/ꢀ9