Models 85 & 86
Medium Power Fixed Coaxial Attenuators
Conduction Cooled, 3.5mm or TNC Connectors
WEIGHT:
dc to 18.0/22.0 GHz
50 Watts
Model 85:
Model 86:
68 g (2.4 oz.) maximum
60 g (2.1 oz.) maximum
PHYSICAL DIMENSIONS:
Model 85 (TNC):
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-A-3933.
Ideal for Airborne or Space Applications.
Specifications
NOMINAL IMPEDANCE:
50
Ω
FREQUENCY RANGE:
Model 85:
Model 86:
dc to 18.0 GHz
dc to 22.0 GHz
MAXIMUM DEVIATION OVER FREQUENCY:
Nominal ATTN (dB)
85
3, 6, 10, 20, 30
MAXIMUM SWR:
Frequency (GHz)
dc - 18.0
dc - 22.0
Model
85
86
SWR
1.30
1.30
Deviation (dB)
86
+ 0.80
Connector
TNC Male
TNC Female
DIM A
18.4+0.25 (0.744+0.01)
13.8+0.25 (0.546+0.01)
Model 86 (3.5mm):
+ 0.70
POWER RATING
50 watts
average (bi-directional),
1 kilowatts
peak
(5
µsec
pulse width; 0.5 % duty cycle) with
case temperature held within
90 °C maximum
with appro-
priate conductive heat sink.
POWER COEFFICIENT:
<0.0006 dB/dB/watt
TEMPERATURE COEFFICIENT:
<0.0004 dB/dB/°C
TEMPERATURE RANGE:
-55°C to 90°C (case)
CONNECTORS: Model 85:
TNC connectors mate nonde-
structively with MIL-C-39012 connectors.
Model 86:
3.5mm connectors - mate nondestructively with
SMA per MIL-C-39012, 2.92mm and other 3.5mm connec-
tors.
Description
85 Options
Description
86
Options
1
2
3.5mm Female
3.5mm Male
6
7
TNC Female
TNC Male
NOTE:
Connector
3.5mm Male
3.5mm Female
DIM A
13.4+0.5 (0.53+0.02)
9.9+0.5 (0.32+0.02)
All dimensions are given in mm (inches) and are
nominal, unless otherwise specified.
MODEL NUMBER DESCRIPTION:
Example:
86 - XX - XX
Basic
Model
Number
Attenuation
Value (dB)
Connector Options
1st digit is input side
2nd digit is output side
CONSTRUCTION:
Aluminum body, stainless steel
connectors; gold plated beryllium copper contacts.
53
5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048
web: www.weinschel.com email: sales@weinschel.com
Fax: 301-846-9116
7/8/04
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