SERIES PSA
ATTENUATORS
Pill, Drop-in – DC-12.4 GHz
FEATURES
• LaserTrimmed
• 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 SPECIFICATIONS
The attenuators are available in 1 dB increments from 1 through
ꢂꢀ dB. Specif y desired attenuation value by adding the
attenuation value to the basic series designation. (See note 4)
Impedance
5ꢀ ohms
Operating Temperature -55°C to +15ꢀ°C
Substrate
96% Alumina
Resistive Element
Case, Cap & Tabs
Proprietary Thin Film
Copper, Gold Plated per MIL-G-45ꢂꢀ4
PSA – X
Basic
dB
Series Value
PHYSICAL 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 POWER DERATING CURVE
POWER DERATING
MINIMUM EXPANDED HEIGHT .140[3.56]
1ꢀꢀ
75
5ꢀ
ꢂ5
ꢀ
.003 .001[0.08 0.03]
MAXIMUM COMPRESSED HEIGHT .121[3.07]
ꢂ5
ꢁ5
15ꢀ °C
PSA
CASETEMPERATURE
(SEE NOTE 0)
RESILIENT HOUSING
PERFORMANCE SPECIFICATIONS
Attenuation
Increment (dB)
Notes 1,4
Attenuation Accuracy (dB) Note ꢂ
VSWR (Typical) Note ꢂ
DC-4 GHz
4-ꢁ GHz
±ꢀ.5
ꢁ-1ꢂ.4 GHz
DC-4 GHz
1.ꢂ5
4-ꢁ GHz
1.05
ꢁ-1ꢂ.4 GHz
1.5ꢀ
1 -0
4 - 6
±ꢀ.5
±ꢀ.5
±ꢀ.5
±ꢀ.75
±ꢀ.5
±ꢀ.5
±ꢀ.75
±ꢀ.5
1.ꢂ5
1.05
1.5ꢀ
7 - 1ꢀ
11 - 15
±ꢀ.5
1.ꢂ5
1.05
1.5ꢀ
+ꢀ.5
–0.ꢀ
+ꢀ.5
–4.ꢀ
1.ꢂ5
1.05
1.5ꢀ
16 - ꢂꢀ
±1.ꢀ
+ꢀ.5
–4.ꢀ
—
1.ꢂ5
1.ꢂ5
1.05
1.05
—
—
KEY: Inches [Millimeters] .XX .ꢀ0 .XXX .ꢀ1ꢀ [.X ꢀ.ꢁ .XX ꢀ.ꢂ5]
300 Dino Drive, Ann Arbor, MI 48103
Tel: 888-244-6638 or 734-426-5553 • Fax: 734-426-5557
www.aeroflex.com/inmet • inmetsales@aeroflex.com
REV ꢀ4/11