276 - Weinschel

Fixed Coaxial Attenuators
Model 276
High Reliability, N Connectors
dc to 18.0 GHz
25 Watts
Designed to meet requirements of
MIL-DTL-3933, CLASS IV, N/S
CONNECTORS: Type N connectors per MIL-STD-348
interface dimensions - mate nondestructively with MIL-C39012 connectors.
Description
Options
3
Type N Female
4
Type N Male
Features
CONSTRUCTION: Black, finned aluminum body, stainless
steel connectors with gold plated beryllium copper contacts.
o
Rugged injection molded connectors.
WEIGHT: 110 g (4 oz.) maximum
o
Screened (Model 276S) and Non-screened
(Model 276N) designs available.
PHYSICAL DIMENSIONS:
o
Available in 3, 6, 10, 20 & 30 dB.
o
Test Data supplied at additional cost as follows:
44.4
[1.75]
22.9
[.90]
15.0
[.59]
Non-screened (N): Swept data plots of Attenuation
and SWR across the frequency band.
38.8
[1.53]
Screened (S): Swept data plots of Attenuation and
SWR across the frequency band. Standard data
package includes film, lot record performace showing
pass/fail quantities for all tests and test reports as
applicable.
Connector
N Male
N Female
Specifications
NOMINAL IMPEDANCE: 50 Ω
FREQUENCY RANGE:
NOTE: All dimensions are given in mm (inches) and are maximum,
unless otherwise specified.
dc to 18.0 GHz
Screening
MAXIMUM DEVIATION OVER FREQUENCY:
Nominal ATTN (dB)
3, 6, 10, 20
30
DIM A
24.1 (0.95)
19.0 (0.75)
dc-4 GHz
4-8 GHz
8-18 GHz
+ 0.30
+ 0.60
+ 0.60
+ 0.75
+ 1.00
+ 1.00
MAXIMUM SWR:
Frequency (GHz)
SWR
dc - 4
4-8
8 -12
12 - 18
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).
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:
276N - XX
Attenuation
Value (dB)
POWER COEFFICIENT: <0.0006 dB/dB/watt
TEMPERATURE COEFFICIENT: <0.0004 dB/dB/°C
TEMPERATURE RANGE: -55°C to 125°C
41d
Basic
Model
Number
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: 6/3/2014