MIL-DTL-3933/25 Attenuators
SV Microwave offers military SMA attenuators in accordance with MIL-DTL-3933/25. QPL - 3933 parts are designed and
made under DSCC qualifications in order to withstand harsh environments within military applications. Hi-Rel versions
also available.
These fixed SMA coaxial attenuators operate under low power and frequency range of DC - 2 GHz up to
DC - 18 GHz. These attenuators are small in size and are used in applications where space is at a premium.
Specifications
Material
Bodies and coupling nut
Lock ring and contacts
Sleeve
Insulators
Gasket
Resistor element
Stainless steel per AMS-5640
Beryllium copper per ASTM B196
Brass per ASTM B16
PTFE per ASTM D1710
Silicone rubber per ZZ-R-765, Class I, IB, Grade 50/60
Aluminum nitride substrate with tantalum nitride resistor, Gold plated terminations
Finish
Bodies and coupling nut
Contacts and sleeve
Passivated per AMS-QQ-P-35, Type I I
Gold per ASTM B 488, Type I I,
Grade C, Class 1.52, Over nickel per AMS-QQ-N-290, Class 1
Performance
Impedance
Frequency range
Average power
Peak power
Notes:
1. Power input related linearly from 25°C to .5 Watts at 125°C.
2. Peak power for a duty cycle of 5 x 10-4
50 Ohms
DC - 18.0 GHz
2.0 Watts (Note 1)
500 Watts (Note 2)
SV Microwave is qualified to manufacture MIL-DTL-3933 Attenuators including:
MIL-DTL-3933/14
SMA Attenuators - DC to 12.4 GHz
MIL-DTL-3933/16
SMA Attenuators - DC to 18.0 GHz
SV Microwave • 2400 CentrePark West Drive • West
- DC
Beach, Florida 33409 USA
MIL-DTL-3933/17
TNC Attenuators
Palm
to 18.0 GHz
Telephone: 561.840.1800 • Fax: 561.842.6277
MIL-DTL-3933/18
N Attenuators - DC to 12.4 GHz, DC to 18.0 GHz
www.svmicrowave.com
MIL-DTL-3933/19
BNC Attenuators - DC to 4.5 GHz
MIL-DTL-3933/25
Miniature SMA Attenuators - DC to 18.0 GHz
MIL-DTL-3933/25 Attenuators
SV Microwave QPL Attenuators Part Number Coding System
To more easily illustrate the ordering procedure for SV Microwave QPL Attenuators, part number
M3933/25-74S
is shown
below:
M3933
/25
-74
S or N
Military designator
Attenuator
Connector interface series
SMA
Dash number designation on specification sheet
18.0 GHz with attenuation of 8.0 dB
S =
Screened
N
= Non-Screened
Dash Number/dB Values
Frequency
DC to 2.0 GHz
Attenuation
dB Nominal
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
Dash
Number
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
Frequency
DC to 12.4 GHz
Attenuation
dB Nominal
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
Dash
Number
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
N/S
Attenuation
dB Nominal
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
Frequency
DC to 18.0 GHz
Dash
Number
58 N/S
60 N/S
62 N/S
64 N/S
66 N/S
68 N/S
70 N/S
72 N/S
74 N/S
76 N/S
78 N/S
79 N/S
80 N/S
81 N/S
82 N/S
83 N/S
84 N/S
85 N/S
86 N/S
87 N/S
88 N/S
Attenuation
dB Nominal
0.5
1.5
2.5
3.5
4.5
5.5
6.5
7.5
8.5
9.5
Dash
Number
59 N/S
61 N/S
63 N/S
65 N/S
67 N/S
69 N/S
71 N/S
73 N/S
75 N/S
77 N/S
Electrical Characteristics
Attenuator
Increment
(dB)
0.5 to 6.5
7.0 to 8.5
9.0 to 14.0
15.0 to 20.0
Attenuation
Accuracy
(dB)
± .3
± .4
± .5
± .6
DC to 2
GHz
2 to 4
GHz
VSWR
4 to 8
GHz
8 to 12.4
GHz
12.4 to 18
GHz
1.10
1.15
1.20
1.25
1.35
SV Microwave Screening Capabilities IAW MIL-DTL-3933
SV Microwave possesses the capability not only to manufacture military connectors that meet the DSCC
specifications, but also to test and certify them. With extensive in-house testing capabilities, we ensure that
when our products are placed in military environments, they will be able to support crucial airborne and
terrestrial applications. In-house testing capabilities include MIL-DTL-3933 screening and material
inspection.
SV Microwave offers innovative solutions to satisfy your requirements. We have invested in a talented
engineering staff, supported by state-of-the-art, high-frequency RF simulation design software. Our full
service laboratories perform comprehensive environmental mechanical and electrical testing. We control
virtually all processes with in-house machining, fabrication, assembly and acceptance and qualification testing.
Using our in-house testing capabilities eliminates the need for outsourcing environmental test requirements,
which results in a lower delivered cost and shorter lead-time.
Inspection Capabilities
• Thermal Shock
• Conditioning
• Stability of attenuation: after peak power
• Pre-burn-in electrical:
DC resistance
VSWR
Attenuation
• Burn-in 240 hours
• Post-burn-in electrical:
DC resistance
VSWR
Attenuation
• Radiograhic inspection
SV Microwave • 2400 CentrePark West Drive • West Palm Beach, Florida 33409 USA
Telephone: 561.840.1800 • Fax: 561.842.6277
www.svmicrowave.com
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Amphenol
:
M3933/14-13S M3933/14-14N M3933/14-14S M3933/14-15N M3933/14-15S M3933/14-16N M3933/14-16S
M3933/14-17N M3933/14-17S M3933/14-27N M3933/14-27S M3933/14-28N M3933/14-28S M3933/14-29N
M3933/14-29S M3933/14-30N M3933/14-30S M3933/14-31N M3933/14-31S M3933/14-32N M3933/14-32S
M3933/14-33N M3933/14-33S M3933/14-34N M3933/14-34S M3933/14-35N M3933/14-35S M3933/14-36N
M3933/14-36S M3933/14-37N M3933/14-37S M3933/14-38N M3933/14-38S M3933/14-39N M3933/14-39S
M3933/14-40N M3933/14-40S M3933/14-41N M3933/14-41S M3933/14-42N M3933/14-42S M3933/14-43N
M3933/14-43S M3933/14-44N M3933/14-44S M3933/14-45N M3933/14-45S M3933/14-46N M3933/14-46S
M3933/16-12N M3933/16-12S M3933/16-13N M3933/16-13S M3933/16-14N M3933/16-14S M3933/16-15N
M3933/16-15S M3933/16-46N M3933/16-46S M3933/16-58N M3933/16-58S M3933/16-59N M3933/16-59S
M3933/16-60N M3933/16-60S M3933/16-61N M3933/16-61S M3933/16-62N M3933/16-62S M3933/16-63N
M3933/16-63S M3933/16-64N M3933/16-64S M3933/16-65N M3933/16-65S M3933/16-66N M3933/16-66S
M3933/16-67N M3933/16-67S M3933/16-68N M3933/16-68S M3933/16-69N M3933/16-69S M3933/16-70N
M3933/16-70S M3933/16-71N M3933/16-71S M3933/16-72N M3933/16-72S M3933/16-73N M3933/16-73S
M3933/16-74N M3933/16-74S M3933/16-75N M3933/16-75S M3933/16-76N M3933/16-76S M3933/16-77N
M3933/16-77S M3933/16-78N
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