Fixed Coaxial Attenuators
Model 33
Medium Power Fixed Coaxial Attenuator
Bi-directional Design!
dc to 8.5 GHz
25 Watts
RoHS
EXPRESS
800-542-4457
www.argosysales.com
POWER RATING (mounted horizontally):
25 watts
average (bi-directional)
to 25°C ambient temperature,
derated linearly to 2.5 watts @ 125°C. Note: 3 dB model
can handle 50 Watts
average (bi-directional).
5 kilowatt
peak
(5
μsec
pulse width; 0.25% duty cycle).
POWER COEFFICIENT:
<0.0006 dB/dB/watt
TEMPERATURE COEFFICIENT:
<0.0004 dB/dB/°C
TEMPERATURE RANGE:
-55 °C to 125 °C
TEST DATA:
Insertion loss test data supplied at 0.05, 4.0,
and 8.5 GHz. Other test data can be provided at
additional cost.
CONNECTORS:
Type N & 2.92mm connectors per MIL-
STD-348 interface dimensions - mate nondestructively with
MIL-C-39012 connectors.
Options
1
2
Description
2.92mm Female
2.92mm Male
Options
3
4
Description
Type N, Female
Type N, Male
Features
o
o
o
o
Quality Connectors with special high temperature
support beads.
Designed to meet environmental requirements of
MIL-DTL-3933.
Low Intermodulation option available.
Mode free operation to 10 GHz.
Specifications
NOMINAL IMPEDANCE:
50
Ω
FREQUENCY RANGE:
dc to 8.5 GHz
MAXIMUM DEVIATION OVER FREQUENCY (dB):
CONSTRUCTION:
Black, finned aluminum body, gold
plated beryllium copper contacts.
WEIGHT:
170 g (6 oz.) maximum
PHYSICAL DIMENSIONS:
Nominal
ATTN (dB)
3, 6
10, 20
30
-9.25
-9.50
-9.75
-10.00
-10.25
-10.50
-10.75
0.05
1.00
2.00
dc-4 GHz
33
33-LIM
+ 0.30
+ 0.30
+ 0.60
---
+ 0.40
+ 0.70
4 - 8.5 GHz
33
33-LIM
+ 0.60
+ 0.60
+ 1.00
Specification Limit
---
+ 0.70
+ 1.20
Specification Limit
3.00
4.00
5.00
6.00
7.00
8.00
Typical Attenuation Accuracy of a 33-10-34
MAXIMUM SWR:
Connector
N Male
N Female
NOTE:
1. All dimensions are given in mm (inches) and are maximum, unless
otherwise specified.
2. Unit available with RoHS compliant materials, specify when ordering.
Specification
Frequency (GHz)
dc - 4
4 - 8.5
1.40
1.30
1.20
1.10
1.00
0.05
1.00
2.00
3.00
4.00
5.00
SWR
1.20
1.30
DIM A
22.9 (0.90)
15.0 (0.59)
Connector
2.92mm Female
2.92mm Male
DIM A
14.0 (0.55)
MODEL NUMBER DESCRIPTION:
Example:
6.00
7.00
8.00
33 - XX - XX* - LIM
IM Option**
Basic
Model
Number
Attenuation
Value (dB)
Connector Options
1st digit is J1 side
2nd digit is J2 side
Typical SWR of a 33-10-34
3rd ORDER INTERMODULATION (33-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 +41 dBm each. IM
specification at J2 limited to 10 Watts of input power.
41
*Unit is bi-directional & full power may be applied to either J1 or J2.
**Add -LIM to entire model number for Low Intermodulation option.
Available in only 10, 20, 30 dB and is not available through Express.
41
5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116
web: www.aeroflex.com/weinschel email: weinschel-sales@aeroflex.com
Revision Date: 1/28/09
PCB Design
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