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*
Attenuation Accuracy
3 & 6 dB
10, 20, 30, & 40 dB
Input VSWR (Max.)
3, 6, 10 & 20 dB
30 & 40 dB
Input Power
Peak Power
Impedance
Operating Temp Range
DC - 4 GHz
2.5 & 4 GHz
3, 6, 10, 20, 30 & 40 dB
1.5-2.5GHz
2.5-4GHz
±0.50 dB
±0.75 dB
±1.0 dB
±1.5 dB
DC- GHz
1.5
±0.50 dB
±0.75 dB
1. 5:1
1
1. 5:1
1
1.25:1
1.35:1
1.25:1
1.50:1
300 Watts Avg. @ +25°C
Derated Linearly to 60 Watts @ +1
o
C
25
2 kW Max.
(5uSec Pulse, .05% Duty Cycle)
50 Ohms
-54°C to +125°C
Passivated Stainless Steel
Gold Plated Beryllium Copper
Anodized Aluminum
Note: Units are unidirectional. Units must
be positioned in such a way as to allow free
air flow around fins to assure performance.
Connectors cannot be used to support the
units weight.
Mechanical:
SMA Connectors
Mates with MIL
-STD-348
Conductors
Housing
Model Number:
XB300W-XX
Male/Female Connectors
Length: 7 ±. 0 [194.3 ±2.54]
.65 1
1
Pictured
8X .302 [Ø7.67] THRU ONE FIN
THIS SIDE AND OPPOSITE SIDE
4.38±.07
[111.25±1.78]
2X 4.50
[114.30]
Model Number:
XB300W-XXF
Female/Female Connectors
Length: 7 ±. 0 [191.01 ±2.54]
.52 1
6.25±.12
[158.75±3.05]
Model Number:
XB300W-XXM
Male/Male Connectors
Length: 7 ±. 0 [197 ±2.54]
.78 1
.61
INPUT
2X 5.70
[144.78]
6.25±.12
[158.75±3.05]
7.65±.10
[194.31±2.54]
HOW TO ORDER:
Model Number:
Ordering Examples:
Model Number:
2B300W-6
DC - 2.5 GHz, 6 dB; SMA - Male/Fem
Connector Configuration
= Male/Female
F = Fem/Fem
M = Male/Male
dB Value
Model Number:
4B300W-40F
DC - 4 GHz, 40 dB; SMA - Fem/Fem
XB300W-XXY
Freq. Range
2 = DC - 2.5 GHz
4 = DC - 4 GHz
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 C
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.com/inmet • inmetsales@aeroflex.com
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