Weinschel
C O R P O R A T I O N
Model 45
Model 58
High Power Fixed Coaxial Attenuators
Convection Cooled
dc to 1.5 GHz
dc to 5.0 GHz
250 Watts
Features
o
o
Quality connectors with special high temperature
support beads.
Designed to meet environmental requirements of
MIL-A-3933.
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
CALIBRATION:
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
58
+ 1.50
+ 1.75
3
4
Type/Description
Type N, Female
Type N, Male
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:
Frequency (GHz)
dc - 2 (1.5*)
2-5
* Model 45 only!
Deviation (dB)
45
+ 0.50
+ 0.50
CONSTRUCTION:
Aluminum alloy body, stainless steel
connectors; gold plated beryllium copper contacts.
WEIGHT:
1,530 g (6 lbs, 3 oz.) maximum
MODEL NUMBER DESCRIPTION:
Input
1.10
1.15
Output
1.20 (1.10*)
1.20
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
INTERMODULATION (58-XX-XX-LIM only!):
3rd Order
Through Levels (IM3), -110 dBc maximum 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.
Connector
N Male
N Female
NOTE:
DIM A
22.9 (0.90)
15.0 (0.59)
All dimensions are given in mm (inches) and are maximum, unless otherwise specified.
5305 Spectrum Drive, Frederick, MD 21703-7362
!
TEL: 301-846-9222, 800-638-2048
!
Fax: 301-846-9116
web: www.weinschel.com
!
email: sales@weinschel.com
59
5/4/00
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