Models 56 & 83
Fixed Coaxial Attenuators
3.5mm Connectors & New Bulkhead Versions
dc to 26.5 GHz
2 Watts
CONNECTORS:
3.5mm connectors - contact pin recession
(0 to -0.003 in).
CONSTRUCTION:
Stainless steel body and connectors;
gold plated beryllium copper contacts.
WEIGHT:
4 g (0.14 oz) maximum
PHYSICAL DIMENSIONS:
Features
o
o
o
Precision 3.5mm Connectors.
Low SWR & Flat Response.
Bulkhead ideal for instrument front panels.
Model 56:
Specifications
NOMINAL IMPEDANCE:
50
Ω
FREQUENCY RANGE:
dc to 26.5 GHz
MAXIMUM DEVIATION OVER FREQUENCY (dB):
Nominal ATTN (dB)
0
1 - 10
20, 30
-19.25
-19.50
-19.75
-20.00
-20.25
-20.50
-20.75
0.05
2.50
5.00
7.50
10.00
12.50
15.00
17.50
20.00
22.50
25.00
Specification Limit
Specification Limit
56
+ 0.50
+ 0.60
+ 0.75
83
---
+ 0.60
---
Model 83:
Typical Attenuation Accuracy of a 56-20
MAXIMUM SWR:
Frequency (GHz)
dc - 8
8 - 12.4
12.4 - 26.5
1.40
1.30
1.20
1.10
1.00
0.05
2.50
5.00
7.50
10.00
12.50
15.00
17.50
20.00
22.50
25.00
56
1.10
1.15
1.25
Specification
83
1.10
1.15
1.20
NOTE:
All dimensions are given in mm (inches) and are
maximum, unless otherwise specified.
MODEL NUMBER DESCRIPTION:
Example:
Typical SWR of a 56-20
POWER RATING:
2 watts
average
to 25°C ambient tem-
perature, derated linearly to 0.5 watts at 85°C. 500 watts
peak
(5
µsec
pulse width; 0.2% duty cycle).
POWER COEFFICIENT:
< 0.005 dB/dB/watts
TEMPERATURE COEFFICIENT:
< 0.0004 dB/dB/°C
TEMPERATURE RANGE:
-55 °C to +85 °C.
CALIBRATION:
Insertion Loss and SWR Testing per-
formed across frequency range. Test data available at
additional cost.
7/8/04
83 - XX - XX*
Basic
Model
Number
Attenuation
Value (dB)
Connector Options
1st digit is flange end.
2nd digit is opposite end.
*Connector options for Model 83 only.
CALIBRATED ATTENUATOR SET (AS-20):
Model 56 is
also available in a Calibrated Attenuator Set which includes
five different attenuators (3, 6, 10, 20, 30 dB). Refer to
Calibrated Attenuator Sets data sheet for more information.
Fax: 301-846-9116
30
5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048
web: www.weinschel.com email: sales@weinschel.com
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