ATTENUATORS
SMA, up to 18 GHz, 25 Watts
SPECIFICATIONS:
Models: XXB25WR-XX, XXB25WR-XXF & XXB25WR-XXM
Electrical:
Frequency Range
Standard Freq. Values
DC - 18.0 GHz
6 & 18 GHz
Standard dB Values*
0, 3, 6, 10, 20, 30 & 40 dB
Attenuation Accuracy
3 - 6 dB
7 - 20 dB
21 - 30 dB
31 - 40 dB
DC - 6 GHz
0.30 dB
0.50 dB
0.75 dB
1.00 dB
6 - 12.4 GHz
12.4 - 18 GHz
0.75 dB
0.50 dB
0.75 dB
1.00 dB
1.25 dB
1.00 dB
1.25 dB
±±1.0 dB
VSWR
DC - 6 GHz
6 - 12.4 GHz
12.4 - 18 GHz
Input Power
1.20:1 Max.
1.30:1 Max.
1.40:1 Max.
25 Watts Avg. @ 25°C
Derated Linearly to 5 Watts @ +125oC
Peak Power
500 Watts Max.
(5uSec Pulse, .05% Duty Cycle)
Impedance
50 Ohms
Operating Temp Range
-65°C to +125°C
END VIEW
TYPICAL
Mechanical:
SMA Connectors
Passivated Stainless Steel
Mates with MIL-STD-348
Units must be Mounted in such a way as to
Allow for Free Air Flow Around fins to Insure
Performance
Conductors
Housing
Gold Plated Beryllium Copper
Anodized Aluminum
Model Number: XXB25WR-XX
Male/Female Connectors
Length: 3.79 .05 [96.3 1.3]
Pictured
Model Number: XXB25WR-XXF
Female/Female Connectors
Length: 3.66 .05 [93.0 1.3]
Model Number: XXB25WR-XXM
Male/Male Connectors
Length: 3.92 .05 [99.6 1.3]
HOW TO ORDER:
Ordering Examples:
Model Number: 18B25WR-20
Model Number: XXB25WR-XXY
DC - 18 GHz; 20 dB; SMA - Male/Fem
Freq. Range
6 = DC - 6 GHz
18 = DC - 18 GHz
Connector Configuration
= Male/Female
Model Number: 6B25WR-03F
F = Fem/Fem
DC - 6 GHz; 3 dB; SMA - Fem/Fem
M = Male/Male
dB Value
Note: Dimensions in Brackets are Expressed in Millimeters and are for Reference Only.
*Other dB values, units that operate over a more specific frequency band and/or offer very
low return loss (VSWR) are also available.
XXB25WR-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.com/inmet • inmetsales@aeroflex.com