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web: www.aeroflex.com/weinschel email: weinschel-sales@aeroflex.com
Revision Date: 1/18/10
43
Fixed Coaxial Attenuators
TEST DATA SUPPLIED:
Sweep SWR/Attenuation data/
plots performed across 0.1-26.5 GHz frequency range.
CONNECTORS:
3.5mm (Male/Female) connectors - mate
nondestructively with SMA per MIL-C-39012, 2.92mm and
other 3.5mm connectors.
Connector Options
1
2
CONSTRUCTION:
Black, finned aluminum body, gold
plated beryllium copper contacts.
WEIGHT:
100 g (3.5 oz.) maximum
PHYSICAL DIMENSIONS:
Type/Description
3.5mm, Female
3.5mm, Male
Features
o
Compact Construction -
Lowest size/power ratio.
o
Precision injection molded connector dielectric.
o
Designed to meet environmental requirements of
MIL-DTL-3933.
o
Low SWR Design.
Specifications
NOMINAL IMPEDANCE:
50
Ω
FREQUENCY RANGE:
dc to 28 GHz
NOTE:
All dimensions are given in mm (inches) and are
maximum, unless otherwise specified.
MODEL NUMBER DESCRIPTION:
Example:
74 - XX - XX
Model 74
Medium Power Fixed Coaxial Attenuator
dc to 2
8.0
GHz
25 Watts
3.5mm Connectors
Frequency (GHz)
dc - 18
18 - 28
SWR
1.30
1.35
MAXIMUM SWR:
Basic
Model
Number
Attenuation
Value (dB)
Connector
3.5mm Male
3.5mm Female
DIM A
16.0 (0.63)
15.0 (0.59)
Nominal ATTN (dB)
3
6, 10
20, 30
Deviation (dB)
+ 0.70
+ 1.00
+ 1.50
MAXIMUM DEVIATION OVER FREQUENCY:
POWER RATING:
25 watts
average (unidirectional)
to
25°C ambient temperature, derated linearly to 2.5 Watt @
125°C. 500 watts
peak
(5
μ
sec pulse width; 2.5% duty
cycle). Maximum power rating into output is 10% of the
average power rating.
POWER COEFFICIENT:
<0.0015 dB/dB/watt
TEMPERATURE COEFFICIENT:
<0.0004 dB/dB/°C
TEMPERATURE RANGE:
-55°C to 125°C
Connector Options
1st digit is input side
2nd digit is output side
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