Fixed Coaxial Attenuators
Model 45
Model 58
High Power Fixed Coaxial Attenuator
Convection Cooled
dc to 1.5 GHz
dc to 5.0 GHz
250 Watts
RoHS
EXPRESS
800-542-4457
www.argosysales.com
Features
o
o
POWER RATING (mounted horizontally with fins
vertical):
250 watts
average (unidirectional)
to 55°C
ambient temperature, derated linearly to 10% @ 125°C. 10
kilowatt
peak
(5
μsec
pulse width; 1.25% duty cycle).
Maximum power rating into output port is 50 watts average.
Note: Model 45-3-XX is rated for 500 Watts
average (uni-
directional)
into the input and 250 Watts average
(maximum) into the output port.
POWER COEFFICIENT:
<0.0001 dB/dB/watt
TEMPERATURE COEFFICIENT:
<0.0004 dB/dB/°C
TEMPERATURE RANGE:
-55°C to 125°C
TEST DATA:
Insertion loss test data supplied at 0.05, 1, 2,
3, 4 and 5 GHz (Model 45 at 0.05 and 1.5 GHz). Other test
data can be provided at additional cost.
CONNECTORS:
Type N connectors per MIL-STD-348
interface dimensions - mate nondestructively with MIL-C-
39012 connectors.
Connector Options
Type/Description
Type N, Female
Type N, Male
3
4
Quality connectors with special high temperature
support beads.
Designed to meet environmental requirements of
MIL-DTL-3933.
Specifications
NOMINAL IMPEDANCE:
50
Ω
FREQUENCY RANGE:
Model 45:
Model 58:
dc to 1.5 GHz
dc to 5.0 GHz
MAXIMUM DEVIATION OVER FREQUENCY:
Nominal
ATTN (dB)
3*, 6
10, 20
30, 40
MAXIMUM SWR:
45
+ 0.50
+ 0.50
+ 0.50
Deviation (dB)
58
+ 1.50
+ 1.50
+ 1.75
58 LIM
---
+ 2.00
+ 3.00
CONSTRUCTION:
Aluminum alloy body, stainless steel
connectors; gold plated beryllium copper contacts.
WEIGHT:
1,530 g (6 lbs, 3 oz.) maximum
MODEL NUMBER DESCRIPTION:
Frequency (GHz)
dc - 2 (1.5*)
2-5
* Model 45 only!
45/58
Input
Output
1.10
1.15
1.20 (1.10*)
1.25
58 LIM
Input Output
1.20
1.20
1.25
1.25
Example:
58 - XX - XX
-
LIM
IM Option*
Basic
Model
Number
Attenuation
Value (dB)
Connector Options
1st digit is input side
2nd digit is output side
3rd ORDER INTERMODULATION (58-XX-XX-LIM ONLY):
Reflected Levels (IM3), -100 & Through Levels (IM3), -110
dBc with two input signals @ 869 MHz and 891 MHz with
average carrier power levels of +43 dBm each.
PHYSICAL DIMENSIONS:
*Add -LIM for Low Intermodulation option. Option only available with
Model 58 in 10, 20, 30, 40 dB and is not available through Express.
Connector
N Male
N Female
NOTE:
DIM A
22.9 (0.90)
15.0 (0.59)
1. All dimensions are given in mm (inches) and are
maximum, unless otherwise specified.
2. Unit available with RoHS compliant materials,
specify when ordering.
57
5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116
web: www.aeroflex.com/weinschel email: weinschel-sales@aeroflex.com
Revision Date: 7/13/10
PCB Design
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