Fixed Coaxial Attenuators
Model 284
Medium Power, N or SMK Connectors
Conduction Cooled, Bi-Directional Design!
dc to 10.0 GHz
50 Watts
RoHS
Features
o
o
o
o
Compact Construction -
Lowest size/power ratio.
Precision Connectors with high temperature
support beads.
Designed to meet environmental requirements of
MIL-DTL-3933.
Wireless Applications
- Optimized for use in the
communications bands.
CONNECTORS:
Type N connectors per MIL-STD-348
interface dimensions - mate nondestructively with MIL-C-
39012 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 body, stainless steel
connectors; gold plated beryllium copper contacts.
WEIGHT:
170 g (6 oz.) maximum
PHYSICAL DIMENSIONS:
Specifications
NOMINAL IMPEDANCE:
FREQUENCY RANGE:
50
Ω
dc to 10.0 GHz
MAXIMUM DEVIATION OVER FREQUENCY (dB):
Nominal ATTN (dB)
3, 6, 10, 20
30, 40
MAXIMUM SWR:
DC-4 GHz
+ 0.40
+ 0.60
4-10 GHz
+ 0.75
+ 1.00
Frequency (GHz)
dc - 4
4 - 10
SWR
1.15
1.30
Connector
N Male
N Female
DIM A
22.9 (0.90)
15.0 (0.59)
Connector
2.92mm Male
2.92mm Female
DIM A
14.0 (0.55)
12.7 (0.50)
POWER RATING
50 watts
average (bi-directional),
5 kilowatts
peak
(5
μsec
pulse width; 0.5 % duty cycle) with
case temperature held within
100°C maximum
with appro-
priate conductive heat sink.
POWER COEFFICIENT:
<0.0003 dB/dB/watt
TEMPERATURE COEFFICIENT:
<0.0004 dB/dB/°C
TEMPERATURE RANGE:
-55°C to 100°C (case)
TEST DATA:
Swept data plots of attenuation and SWR
from 50 MHz to 10 GHz.
NOTE: All dimensions are given in mm (inches) and are maximum,
unless otherwise specified.
MODEL NUMBER DESCRIPTION:
Example:
284 - XX - XX*
Basic
Model
Number
Attenuation
Value (dB)
Connector Options
1st digit is J1 side
2nd digit is J2 side
*Unit is bi-directional & full power may be applied to either J1 or J2.
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: weinschel-sales@aeroflex.com
Revision Date: 2/19/2013
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