Model 254, low Passive Intermodulation High Pwer Coaxial

Fixed Coaxial Attenuators
Model 254
Low Passive Intermodulation
dc to 6.5 GHz
175 Watts
RoHS
N or SMK Connectors, Convection Cooled
POWER RATING (mounted horizontally with fins
vertical): 175 watts average (unidirectional) to 25°C
ambient temperature, derated linearly to 17 watts @ 125°C.
10 kilowatt peak (5 μsec pulse width; 0.9% duty cycle).
Maximum power rating into output port is 50 watts average.
Features
POWER COEFFICIENT: <0.0001 dB/dB/watt
o
o
o
TEMPERATURE COEFFICIENT: <0.0004 dB/dB/°C
o
Low PIM design
Lower profile design
Quality connectors with special high temperature
support beads
Rugged construction, free of solder joints.
Specifications
NOMINAL IMPEDANCE: 50 Ω
FREQUENCY RANGE:
dc to 6.5 GHz
MAXIMUM DEVIATION OVER FREQUENCY:
Nominal ATTN (dB)
Deviation (dB)
10, 20, 30
40
+ 1.50
+ 2.00
TEMPERATURE RANGE: -55°C to 125°C
TEST DATA: Swept data plots of attenuation and SWR
from 50 MHz to 6.5 GHz.
CONNECTORS: Type N connectors per MIL-STD-348
interface dimensions - mate nondestructively with MIL-C39012 connectors. SMK (2.92mm) connectors - mate
nondestructively with SMA per MIL-C-39012, 3.5mm, SMK,
and other 2.92mm connectors.
Options
Description
Options Description
1
SMK Female
3
Type N Female
2
SMK Male
4
Type N Male
CONSTRUCTION: Aluminum alloy body, stainless steel
connectors; gold plated beryllium copper contacts.
WEIGHT: Net 1,300 g (2 lbs., 14 oz.) maximum
MAXIMUM SWR:
Frequency (GHz)
SWR
dc - 2.5
2.5 - 6.5
1.10
1.20
MODEL NUMBER DESCRIPTION:
Example:
254 - XX - XX
PASSIVE INTERMODULATION (PIM) LEVELS:
Nominal ATTN (dB)
3rd Order IM Magnitude (IM3)
10
-120 dBc
20
-130 dBc
30
-140 dBc
40
-150 dBc
Basic
Model
Number
Attenuation
Value (dB)
Connector Options
1st digit is input side
2nd digit is output side
Note: Specifications subject to change without notice.
IM3 levels tested with two input signals @ 869 MHz and 891 MHz with
average carrier power levels of +43 dBm each.
PHYSICAL DIMENSIONS:
55.88 ± 2.54
(2.20 ± .10)
HOT
78.74 ± 2.54
(3.10 ± .10)
DIM A
TYP
198.12 ± 2.54
(7.80 ± .10)
DIM A
TYP
Connector
N Male
N Female
SMK Male
SMK Female
CAGE
93459
MODEL: 254-XX-XX
SERNO: XXXX
J1
Input
DIM A
22.9 (0.90)
15.0 (0.59)
14.0 (0.55)
12.7 (0.50)
J2
Output
NOTE: All dimensions are given in mm (inches) and are maximum, unless otherwise specified.
1
5305 Spectrum Drive, Frederick, MD 21703-7362 s TEL: 301-846-9222, 800-638-2048 s Fax: 301-846-9116
web: www.aeroflex.com/weinschel s email: [email protected]
Revision Date: 4/6/2015