ATTENUATORS
SMA, up to 4 GHz, 300 Watts
SPECIFICATIONS:
Models: XB300W-XX, XB300W-XXF, XB300W-XXM
Electrical:
Frequency Range
Standard Freq. Values
Standard dB Values*
DC - 4 GHz
2.5 & 4 GHz
3, 6, 10, 20, 30 & 40 dB
Attenuation Accuracy
3 & 6 dB
10, 20 & 30 dB
40 dB
DC-1.5 GHz
0.50 dB
1.5-2.5GHz
0.50 dB
1.0 dB
2.5-4GHz
0.75 dB
1.5 dB
0.75 dB
0.75 dB
1.0 dB
2.5 dB
VSWR
3, 6, 10 & 20 dB
30 & 40 dB
Input Power
1.15:1
1.15:1
1.25:1
1.25:1
1.35:1
1.50:1
300 Watts Avg. @ +25°C
Derated Linearly to 60 Watts @ +125oC
Peak Power
2 kW Max.
(5uSec Pulse, .05% Duty Cycle)
Impedance
50 Ohms
Operating Temp Range
-54°C to +125°C
Note: Units are unidirectional. Units must
be positioned in such a way as to allow free
air flow around fins to assure performance.
Mechanical:
SMA Connectors
Passivated Stainless Steel
Mates with MIL-STD-348
Conductors
Housing
Gold Plated Beryllium Copper
Anodized Aluminum
Connectors cannot be used to support the
units weight.
Model Number: XB300W-XX
8X .302 [Ø7.67] THRU ONE FIN
THIS SIDE AND OPPOSITE SIDE
Male/Female Connectors
Length: 7.65 .10 [194.31 2.54]
Pictured
2X 4.50
[ꢀꢀ4.30]
4.38 .07
[ꢀꢀꢀ.25 ꢀ.78]
Model Number: XB300W-XXF
Female/Female Connectors
Length: 7.52 .10 [191.01 2.54]
INPUT
2X 5.70
[ꢀ44.78]
6.25 .ꢀ2
[ꢀ58.75 3.05]
Model Number: XB300W-XXM
Male/Male Connectors
Length: 7.78 .10 [197.61 2.54]
7.65 .ꢀ0
6.25 .ꢀ2
[ꢀ94.3ꢀ 2.54]
[ꢀ58.75 3.05]
Ordering Examples:
HOWTO ORDER:
Model Number: 2B300W-6
Model Number: XB300W-XXY
DC - 2.5 GHz, 6 dB; SMA - Male/Fem
Freq. Range
Connector Configuration
= Male/Female
Model Number: 4B300W-40F
DC - 4 GHz, 40 dB; SMA - Fem/Fem
2 = DC - 2.5 GHz
4 = DC - 4 GHz
F = Fem/Fem
M = Male/Male
dB Value
Note: Dimensions in Brackets are Expressed in Millimeters and are for Reference Only.
Design, specifications are subject to change without notice. Contact factory for technical
specifications before purchasing and/or use.
XB300W-ATT: REV A
Aeroflex / Inmet, Inc. • 300 Dino Drive, Ann Arbor, MI 48103 • U.S.A.
888-244-6638 or 734-426-5553 • FAX: 734-426-5557
www.aeroflex-inmet.com • sales@aeroflex-inmet.com