AU & AUP-25 Series
MICROWAVE ATTENUATORS
To 19 GHz / 0 to 30 dB / Ferrite / Excellent Stability / Panel Mount or Freestanding / SMA & N
PRINCIPAL SPECIFICATIONS
Model
Number
AU-25AMN
AU-25AMX*
AU-25ASN
(AUP-25ASN
(AUP-25ASX
Mechanical
Configuration
Micrometer
Micrometer
Screw Drive
Panel Version)
Panel Version)
Frequency Frequency Atten. Insertion
Range, Performance, Range,
Loss,
GHz
GHz
dB
Max
1.0 - 10.0
1.0 - 10.0
1.0 - 10.0
1.0 - 10.0
5.0 - 8.0
5.0 - 8.0
7.0 - 19.0
1-2
2 - 10
1-2
2 - 10
1-2
2 - 10
1-2
2 - 10
5-8
5-8
7 - 19
0 - 15
0 - 30
0 - 15
0 - 30
0 - 15
0 - 30
0 - 15
0 - 30
0 - 30
0 - 30
0 - 40
0.5
0.5
0.5
0.5
0.5
0.5
0.9
†
Flatness,
dB, Connector
Max.
Style
----
----
----
----
±
0.5
†
±
0.5
†
----
N (m-f)
SMA (f-f)
N (m-f)
SMA (f-f)
N (m-f)
SMA (f-f)
SMA (f-f)
Weight
oz.(g),
Nom.
12 (335)
10 (280)
12 (335)
15 (420)
10 (280)
13 (364)
12 (335)
10 (280)
10 (280)
13 (364)
AU-25ASX
AU-25GSN
Screw Drive
Screw Drive
Screw Drive
Screw Drive
AU-25GSX
AU-25KSX
(AUP-25KSX
Panel Version)
*Package Outline on request
Or
±5%
, whichever is larger
AU-25AMN Package Outline
GENERAL SPECIFICATIONS
Impedance, nominal:
VSWR:
CW Power:
Operating Temperature:
50
Ω
1.5:1 max
4 Watts max.
-- 55° to +85°C
General Notes:
1. The AU/AUP-25 series of microwave attenuators
has been designed for wideband ECM systems and
other applications in the 1 to 19 GHz frequency band
where precise attenuation must be maintained over
a wide variety of military and laboratory
environments.
2. Applications include signal and LO power control,
automatic level control and impedance matching.
3. The AU/AUP-25 series uses ferrite absorption of
microwave energy for stability and high reliability.
They can be supplied screened to meet specific
military and commercial high reliability applications.
NOTES:
1. Tolerance on 3 place decimals
±
.020(.51) except as noted.
2. Dimensions in inches over millimeters.
3. Clockwise micrometer rotation increases attenuation.
28Feb96
For further information contact
MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531
AU & AUP-25 Se-
ries
MICROWAVE ATTENUATORS
To 19 GHz / 0 to 30 dB / Ferrite / Excellent Stability / Panel Mount or Freestanding / SMA & N
AU-25A series, (1 - 10 GHz) Characteristics, Typical
Attenuation Characteristics
VSWR
Insertion Loss
AU-25G series, (5 - 8 GHz) Characteristics, Typical
Attenuation Characteristics
VSWR (worst case)
Insertion Loss
AU-25K series, (7 - 19 GHz) Characteristics, Typical
Attenuation Characteristics
VSWR (worst case)
Insertion Loss
28Feb96
F rf t e if r to c n a t
M ERRI AC /41 Faifel Pl,W estCal
o ur h r n o ma in o t c
M
ri d .
dwel,NJ,07006 / 973- 1300 /FAX 973- 0531
l
575-
575-
AU & AUP-25 Series
MICROWAVE ATTENUATORS
To 19 GHz / 0 to 30 dB / Ferrite / Excellent Stability / Panel Mount or Freestanding / SMA & N
AU-25ASN,GSN
NOTES:
1. Tolerance on 3 place decimals
±
.020(.51) except as noted.
2. Dimensions in inches over millimeters.
3. Counter clockwise shaft rotation increases attenuation.
4. Shaft lock mtg. and locking nuts, panel bushing, internal tooth
lockwasher and flatwasher are supplied by Merrimac.
AU-25ASX,GSX,KSX
NOTES:
1. Tolerance on 3 place decimals
±
.020(.51) except as noted.
2. Dimensions in inches over millimeters.
3. Counter clockwise shaft rotation increases attenuation.
4. Shaft lock mtg. and locking nuts, panel bushing, internal tooth
lockwasher and flatwasher are supplied by Merrimac.
28Feb96
F rf t e if r to c n a t
M ERRI AC /41 Faifel Pl,W estCal
o ur h r n o ma in o t c
M
ri d .
dwel,NJ,07006 / 973- 1300 /FAX 973- 0531
l
575-
575-
AU & AUP-25 Se-
ries
MICROWAVE ATTENUATORS
To 19 GHz / 0 to 30 dB / Ferrite / Excellent Stability / Panel Mount or Freestanding / SMA & N
AUP-25ASN
NOTES:
1. Tolerance on 3 place decimals
±
.020(.51) except as noted.
2. Dimensions in inches over millimeters.
3. Counter clockwise shaft rotation increases attenuation.
4. Shaft lock mtg. and locking nuts, panel bushing, internal tooth
lockwasher and flatwasher are supplied by Merrimac.
5. Call Merrimac for panel mount installation instructions.
AUP-25ASX, KSX
NOTES:
1. Tolerance on 3 place decimals
±
.020(.51) except as noted.
2. Dimensions in inches over millimeters.
3. Counter clockwise shaft rotation increases attenuation.
4. Shaft lock mtg. and locking nuts, panel bushing, internal tooth
lockwasher and flatwasher are supplied by Merrimac.
5. Call Merrimac for panel mount installation instructions.
28Feb96
F rf t e if r to c n a t
M ERRI AC /41 Faifel Pl,W estCal
o ur h r n o ma in o t c
M
ri d .
dwel,NJ,07006 / 973- 1300 /FAX 973- 0531
l
575-
575-
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