Fixed Coaxial Attenuators
Model 90
Medium Power, N & 3.5mm Connectors
Bi-directional Design
TEMPERATURE RANGE:
-55 °C to 125 °C
TEST DATA:
Swept data plots of attenuation and SWR
from 50 MHz to 18 GHz. Frequency markers at 0.05, 2.0,
4.0, 8.0, 12.4, 18.0 GHz
CONNECTORS:
Type N connectors per MIL-STD-348
interface dimensions - mate nondestructively with MIL-C-
39012 connectors.
3.5mm Connectors - mate nondestructively with SMA per
MIL-C-39012, 2.92mm and 3.5mm connectors.
Options
Description
Options Description
1
3.5mm Female
3
Type N, Female
2
3.5mm Male
4
Type N, Male
CONSTRUCTION:
Black, finned aluminum body, gold
plated beryllium copper contacts.
WEIGHT:
120 g (4.2 oz.) maximum
PHYSICAL DIMENSIONS:
dc to 18.0 GHz
50 Watts
RoHS
Features
o
o
o
o
Precision injection molded connectors.
Designed to meet environmental requirements
of MIL-DTL-3933.
Flat Response.
Low Intermodulation option available.
Specifications
NOMINAL IMPEDANCE:
50
Ω
FREQUENCY RANGE:
dc to 18.0 GHz
MAXIMUM DEVIATION OVER FREQUENCY:
Nominal
ATTN (dB)
3, 6
10, 20, 30
MAXIMUM SWR:
Frequency (GHz)
dc - 8
8 - 12.4
12.4 - 18
SWR
1.15
1.20
1.30
Connector
N Male
N Female
DIM A
24.1 (0.95)
19.0 (0.75)
Connector
3.5mm Male
3.5mm Female
DIM A
14.0 (0.55)
13.2 (0.52)
Deviation (dB)
90
+ 1.0
+ 1.0
90-LIM
---
+2.0 / -1.0
NOTE: All dimensions are given in mm (inches) and are maximum,
unless otherwise specified.
3rd ORDER INTERMODULATION (90-XX-XX-LIM ONLY):
Reflected Levels (IM3), -100 dBc and Through Levels (IM3),
-110 dBc with two input signals @ 869 MHz and 891 MHz
with average carrier power levels of +43 dBm each. Option
only available 10, 20, 30 dB.
POWER RATING (mounted horizontally):
50 watts
aver-
age (bi-directional)
to 25°C ambient temperature, derated
linearly to 5 Watts @ 125°C. 1 kW
peak
(5
μsec
pulse
width; 2.5% duty cycle).
POWER COEFFICIENT:
<0.0003 dB/dB/watt
TEMPERATURE COEFFICIENT:
<0.0004 dB/dB/°C
56
MODEL NUMBER DESCRIPTION:
Example:
90 - XX - XX* - LIM
IM Option**
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.
**Add -LIM to entire model number for Low Intermodulation option. Option
only available in 10, 20, 30 dB.
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: 1/24/2013
