ATTENUATORS
ATTENUATORS
FEATURES
•
•
•
•
•
•
•
•
•
•
•
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Power to 100 watts CW
Frequency ranges from DC to 2.5 GHz
Values from 0 – 30 dB in 1 dB steps
Excellent broadband VSWR
Flat attenuation across full bandwidth
Aluminum Nitride (AIN) and
Beryllium Oxide (BeO)
Thin-film/thick-film (thick-film standard)
Copper and copper/tungsten mounting
flanges (copper standard)
Nickel, silver and gold plating (nickel
standard)
High temperature attachment
Welded leads
Custom designs
APPLICATIONS
• Accurate high power attenuation for microstrip designs
• Antenna matching
• High power digital attenuators
26
ATTENUATORS
ALUMINUM
NITRIDE
MODEL NUMBER
BERYLLIUM
OXIDE
MODEL NUMBER
ATTENUATION
VALUE
(dB)
POWER
(Watts, CW)
TOLERANCE
(±dB)
FREQUENCY
(GHz)
VSWR
(Max.)
HF20 SERIES (HALF FLANGE)
ATT-20-1HF
ATT-20-2HF
ATT-20-3HF
ATT-20-4HF
ATT-20-5HF
ATT-20-6HF
ATT-20-7HF
ATT-20-8HF
ATT-20-9HF
ATT-20-10HF
ATT-20-15HF
ATT-20-20HF
ATT-20-30HF
ATT-40-1FL
ATT-40-2FL
ATT-40-3FL
ATT-40-4FL
ATT-40-5FL
ATT-40-6FL
ATT-40-7FL
ATT-40-8FL
ATT-40-9FL
ATT-40-10FL
ATT-40-15FL
ATT-40-20FL
ATT-40-30FL
ATT-50-1FF
ATT-50-2FF
ATT-50-3FF
ATT-50-4FF
ATT-50-5FF
ATT-50-6FF
ATT-50-7FF
ATT-50-8FF
ATT-50-9FF
ATT-50-10FF
ATT-50-15FF
ATT-50-20FF
ATT-50-30FF
BTT-20-1HF
BTT-20-2HF
BTT-20-3HF
BTT-20-4HF
BTT-20-5HF
BTT-20-6HF
BTT-20-7HF
BTT-20-8HF
BTT-20-9HF
BTT-20-10HF
BTT-20-15HF
BTT-20-20HF
BTT-20-30HF
BTT-40-1FL
BTT-40-2FL
BTT-40-3FL
BTT-40-4FL
BTT-40-5FL
BTT-40-6FL
BTT-40-7FL
BTT-40-8FL
BTT-40-9FL
BTT-40-10FL
BTT-40-15FL
BTT-40-20FL
BTT-40-30FL
BTT-50-1FF
BTT-50-2FF
BTT-50-3FF
BTT-50-4FF
BTT-50-5FF
BTT-50-6FF
BTT-50-7FF
BTT-50-8FF
BTT-50-9FF
BTT-50-10FF
BTT-50-15FF
BTT-50-20FF
BTT-50-30FF
1
2
3
4
5
6
7
8
9
10
15
20
30
1
2
3
4
5
6
7
8
9
10
15
20
30
1
2
3
4
5
6
7
8
9
10
15
20
30
20
20
20
20
20
20
20
20
20
20
20
20
20
40
40
40
40
40
40
40
40
40
40
40
40
40
50
50
50
50
50
50
50
50
50
50
50
50
50
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.5
0.5
1
1
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.5
0.5
1
1
0.2
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.4
0.5
1
1
1
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
3
3
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.15:1
1.15:1
1.15:1
1.15:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.15:1
1.15:1
1.15:1
1.15:1
1.25:1
1.25:1
1.25:1
1.25:1
1.25:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
FL40 SERIES (FLANGELESS)
FF50 SERIES (FULL FLANGE)
See outline drawings on page 29.
ENVIRONMENTAL CONDITIONS
Operating temperature...................................................
Storage temperature ......................................................
Humidity .........................................................................
Vibration.........................................................................
-55 to +75°C (base plate)
-55 to +100°C
95% relative humidity, noncondensing
7 g’s rms, 50–5000 CPS per MIL-STD-810B,
Method 514, Procedure 5
27
ATTENUATORS (CONT.)
ALUMINUM
NITRIDE
MODEL NUMBER
BERYLLIUM
OXIDE
MODEL NUMBER
ATTENUATION
VALUE
(dB)
POWER
(Watts, CW)
TOLERANCE
(±dB)
FREQUENCY
(GHz)
VSWR
(Max.)
HF75 SERIES (HALF FLANGE)
ATT-75-1HF
ATT-75-2HF
ATT-75-3HF
ATT-75-4HF
ATT-75-5HF
ATT-75-6HF
ATT-75-7HF
ATT-75-8HF
ATT-75-9HF
ATT-75-10HF
ATT-75-15HF
ATT-75-20HF
ATT-75-30HF
ATT-100-1FF
ATT-100-2FF
ATT-100-3FF
ATT-100-4FF
ATT-100-5FF
ATT-100-6FF
ATT-100-7FF
ATT-100-8FF
ATT-100-9FF
ATT-100-10FF
ATT-100-15FF
ATT-100-20FF
ATT-100-30FF
ATT-100-1FL
ATT-100-2FL
ATT-100-3FL
ATT-100-4FL
ATT-100-5FL
ATT-100-6FL
ATT-100-7FL
ATT-100-8FL
ATT-100-9FL
ATT-100-10FL
ATT-100-15FL
ATT-100-20FL
ATT-100-30FL
BTT-75-1HF
BTT-75-2HF
BTT-75-3HF
BTT-75-4HF
BTT-75-5HF
BTT-75-6HF
BTT-75-7HF
BTT-75-8HF
BTT-75-9HF
BTT-75-10HF
BTT-75-15HF
BTT-75-20HF
BTT-75-30HF
BTT-100-1FF
BTT-100-2FF
BTT-100-3FF
BTT-100-4FF
BTT-100-5FF
BTT-100-6FF
BTT-100-7FF
BTT-100-8FF
BTT-100-9FF
BTT-100-10FF
BTT-100-15FF
BTT-100-20FF
BTT-100-30FF
BTT-100-1FL
BTT-100-2FL
BTT-100-3FL
BTT-100-4FL
BTT-100-5FL
BTT-100-6FL
BTT-100-7FL
BTT-100-8FL
BTT-100-9FL
BTT-100-10FL
BTT-100-15FL
BTT-100-20FL
BTT-100-30FL
1
2
3
4
5
6
7
8
9
10
15
20
30
1
2
3
4
5
6
7
8
9
10
15
20
30
1
2
3
4
5
6
7
8
9
10
15
20
30
75
75
75
75
75
75
75
75
75
75
75
75
75
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.5
0.5
1
1
0.2
0.2
0.2
0.2
0.2
0.3
0.2
0.3
0.4
0.5
0.5
1
1
0.2
0.2
0.2
0.2
0.2
0.3
0.2
0.3
0.4
0.5
0.5
1
1
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
3
3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
3
3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
3
3
1.25:1
1.25:1
1.25:1
1.25:1
1.25:1
1.25:1
1.25:1
1.25:1
1.25:1
1.2:1
1.2:1
1.2:1
1.2:1
1.25:1
1.25:1
1.25:1
1.25:1
1.25:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.25:1
1.25:1
1.25:1
1.25:1
1.25:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
1.2:1
FF100 SERIES (FULL FLANGE)
FL100 SERIES (FLANGELESS)
See outline drawings on page 29.
28
ATTENUATOR OUTLINE DRAWINGS
HALF FLANGE/FULL FLANGE/FLANGE/FLANGELESS
HF20 SERIES
.250
[6.35]
Ø.116 [2.95] THRU
(2 PLACES)
.125
[3.18]
.125
[3.18]
.515
[13.08]
.050 [1.27]
.120
[3.05]
.225 [5.72]
.11 [2.80]
.130 [3.30] DIA.
.035 [.89]
.150 [3.81]
.062 [1.57]
.102 [2.59]
TO BOTTOM
OF LEAD
.120 [3.048]
.062 [1.588]
.100 [2.54]
HF75 SERIES
.575 [14.605]
.400
[10.16]
.050
[1.27]
FL40 SERIES
.250
[6.35]
FL100 SERIES
.350
[8.89]
.050
[1.27]
1.75
[4.45]
.250
[6.35]
.035
[.89]
.225
[5.72]
.070
[1.78]
.040
[1.02]
.042
[1.067]
.50 [1.27]
.070
[1.78]
FF50 SERIES
.800 [20.32]
.400 [10.16]
.50 [1.27]
.130 [3.30]
DIA.
.225
[5.72]
.11
[2.79]
.225
[5.72]
.11
[2.79]
FF100 SERIES
.800 [20.32]
.400 [10.16]
.50 [1.27]
.130 [3.30]
DIA.
.120 [3.05]
.560 [14.22]
.120 [3.05]
.350 [8.89]
.560 [14.22]
.100
[2.54]
.062 [1.57]
.130
[3.30]
.100
[2.54]
.062 [1.57]
.130
[3.30]
NOTE: DIMENSIONS SHOWN IN BRACKETS [ ] ARE IN MILLIMETERS. MINIMUM LEAD LENGTH IS .150” [3.810].
29
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