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Hirose Electric |
Fixed Attenuators - 2W power (SMA type)
AT-1900 Series
sFeatures
1.Small Size
Use of alumina for the attenuation element assures
light weight and is cost effective.
2.SMA coupling
Several configurations of SMA plug/jack couplings
are available in stainless steel, assuring durability.
3.High Reliability
Proven and stable performance characteristic under
varying temperature, humidity and adverse
environmental conditions.
sProduct Specifications
Ratings
Frequency range
Characteristic impedance
Maximum Input Power
DC to 8.0GHz
50 ohms
2W
Item
1.Vibration
2.Shock
Characteristic Requirement
No electrical discontinuity of 1 µs or more.
No damage, cracks, or parts dislocation.
3.Temperature cycle No damage, cracks, or parts dislocation.
qThe test method conforms to MIL-STD-202.
Operating temperature
Operating Humidity
_30ç ~ +65ç
95% max.
Conditions
Frequency of 10 to 2000 Hz, overall amplitude of 1.52 mm,
acceleration of 98 m/s2 for 4 hours in each of 3 directions
Acceleration of 490 m/s2, sine half-wave waveform,
3 cycles in each of the 3 axis
Temperature : -35ç ¡ +5ç to +35ç ¡ +85ç ¡ +5ç to +35ç
Time : 30 ¡ 15 max. ¡ 30 ¡ 15 max. (Minutes)
5 cycles
sMaterial
Component
Material
Body
Stainless steel
Insulator
PTFE
Male contact
Brass
Female contact Beryllium copper
Outer conductor (interior)
Aluminum
Couplings
Stainless steel
Radiator
Aluminum
Attenuation element
Alumina
Finish
Passivated
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Gold plated
Gold plated
Nickel plated
Passivated
Black alumite
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sOrdering Information
AT ---- 19 03
1 23
1 Fixed attenuator
2 Series Name and coupling type:
SMA plug/jack
3 Attenuation
03 : 3dB
06 : 6dB
10 : 10dB
86
sSpecifications
Part Number Frequency Range
(GHz)
AT-1903
AT-1906
AT-1910
DC~4
4~8
DC~4
4~8
DC~4
4~8
Attenuation
(dB)
3±0.3
3±0.5
6±0.3
6±0.5
10±0.5
10±1.5
V.S.W.R.
(Max)
1.25
1.25
1.3
Impedance
(ohms)
50
50
50
Power
(W)
Connectors
Weight
(g)
SMA type
2 40
plug / jack
SMA type
2 40
plug / jack
SMA type
2 40
plug / jack
sExternal Dimensions
1/4-36UNS-2A
48
1/4-36UNS-2B
8.5 28
AT-1900
11.5
sTypical Data
AT-1903
VSWR
87
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