78

Fixed Coaxial Attenuators
Model 78
High Power, 7/16 Connectors
dc to 6.0 GHz
50 Watts
Bi-Directional Design!
POWER RATING (mounted horizontally): 50 watts
average (bi-directional) to 25°C ambient temperature,
derated linearly to 10 watts @ 125°C. 5 kilowatt peak
(5 μsec pulse width; 0.5 % duty cycle).
POWER COEFFICIENT: <0.00015 dB/dB/watt
TEMPERATURE COEFFICIENT: <0.0004 dB/dB/°C
TEMPERATURE RANGE: -55 °C to 125 °C
TEST DATA: Swept data plots of SWR from 50 MHz to
6 GHz supplied.
CONNECTORS: 7/16 connector that conforms to DIN
47223, IEC 169-4, VG 95250, CECC 22 190.
Features
o
o
o
Optimized for Wireless OEM & Test Applications.
Low Intermodulation Design.
Designed to meet environmental requirements of
MIL-A-3933.
Specifications
Type/Description
Connector Options
1
2
7/16 Female
7/16 Male
CONSTRUCTION: Black, finned aluminum body, silver
plated brass connectors.
WEIGHT: 392 g (14 oz.) maximum
PHYSICAL DIMENSIONS:
NOMINAL IMPEDANCE: 50 Ω
FREQUENCY RANGE: dc to 6.0 GHz
MAXIMUM DEVIATION OVER FREQUENCY:
Nominal ATTN (dB)
10, 20
30
Deviation (dB)
+ 1.00
+ 1.25
MAXIMUM SWR:
Frequency (GHz)
SWR
dc - 3
3-5
1.20
1.30
Connector
7/16 Male
7/16 Female
NOTE:
3rd ORDER INTERMODULATION: 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.
DIM A
32.3 (1.27)
30.7 (1.21)
All dimensions are given in mm (inches) and tolerances
are X.X+0.8 (0.03) unless otherwise specified.
MODEL NUMBER DESCRIPTION:
Example:
78 - 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.
54
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: 5/14/2014