Fixed Coaxial Attenuators
Model 276
High Reliability, N Connectors
Designed to meet requirements of
MIL-DTL-3933, CLASS III/IV, N/S
CONNECTORS:
Type N connectors per MIL-STD-348
interface dimensions - mate nondestructively with MIL-C-
39012 connectors.
Description
Options
3
Type N Female
4
Type N Male
dc to 18.0 GHz
25 Watts
Features
o
o
o
o
Rugged injection molded connectors.
Screened (Model 276S) and Non-screened
(Model 276N) designs available.
Available in 3, 6, 10, 20 & 30 dB.
Test Data supplied at additional cost as follows:
Non-screened (N):
Swept data plots of Attenuation
and SWR across the frequency band.
Screened (S):
Swept data plots of Attenuation and
SWR across the frequency band. Film, Standard
data package includes lot record performace showing
pass/fail quantities for all tests and test reports as
applicable.
CONSTRUCTION:
Black, finned aluminum body, stainless
steel connectors with gold plated beryllium copper contacts.
WEIGHT:
110 g (4 oz.) maximum
PHYSICAL DIMENSIONS:
22.9
[.90]
44.4
[1.75]
15.0
[.59]
38.8
[1.53]
Specifications
NOMINAL IMPEDANCE:
50
Ω
FREQUENCY RANGE:
dc to 18.0 GHz
Connector
N Male
N Female
DIM A
24.1 (0.95)
19.0 (0.75)
NOTE: All dimensions are given in mm (inches) and are maximum,
unless otherwise specified.
MAXIMUM DEVIATION OVER FREQUENCY:
Screening
dB
Units are screened as follows:
"N" versions:
SWR
Attenuation
Peak Power
"S" versions:
Thermal Shock
Monitored Thermal Cycle (MTC)
Attenuation
Conditioning
Peak Power
Attenuation
SWR
Radiographics
MODEL NUMBER DESCRIPTION:
Example:
Nominal ATTN (dB)
3, 6
10, 20
30
MAXIMUM SWR:
+ 0.30
+ 0.50
+ 1.00
Frequency (GHz)
dc - 4
4-8
8 -12
12 - 18
SWR
1.15
1.20
1.25
1.40
POWER RATING (mounted horizontally):
25 watts
average (bi-directional)
to 25°C ambient temperature,
derated linearly to 2.5 watts @ 125°C.
3, 6 dB: 1 kilowatt
peak
(5
μsec
pulse width; 0.05% duty
cycle), 10, 20 30 dB: 2 kilowatt
peak
(5
μsec
pulse width;
0.05% duty cycle).
POWER COEFFICIENT:
<0.0006 dB/dB/watt
TEMPERATURE COEFFICIENT:
<0.0004 dB/dB/°C
TEMPERATURE RANGE:
-55°C to 125°C
41d
276N - XX
Basic
Model
Number
Attenuation
Value (dB)
N = Non-screened
S = Screened
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: 10/4/2013
DSP and ARM Processors
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