INCH-POUND
MIL-PRF-39012/93C
w/AMENDMENT 1
15 July 2016
SUPERSEDING
MIL-PRF-39012/93C
12 January 2014
PERFORMAN C E S PECIFI C AT I O N SHEET
CONNECTORS, RECEPTACLES, ELECTRICAL, COAXIAL, RADIO FREQUENCY,
(SERIES SMA (UNCABLED), FEMALE, PRINTED CIRCUIT, CLASS 2)
This specification is approved for use by all Departments
and Agencies of the Department of Defense.
The requirements for acquiring the product described herein shall
consist of this specification sheet and MIL-PRF-39012.
Dash number
(x = shell material)
Dimension A
inches (mm)
Maximum overall length
inches (mm)
X001
.155 (3.94 ) ± .010 (0.25)
.545 (13.64)
X002
.125 (3.18) ± .010 (0.25)
.515 (13.08)
X003
.093 (2.36) ± .010 (0.25)
.483 (12.27)
Inches
mm
Inches
mm
mm
mm
.001
.002
.005
0.02
0.05
0.13
.008
.050
.060
0.20
1.27
1.52
.200
2.54
5.08
9.32
9.53
NOTES:
1. Dimens ions are in inches.
2. Metric equivalents are given for information on ly.
3. All undimensioned pictorial configurations are for reference purposes only.
4. Configuration optional.
5. Series SMA, socket contact interface in accordance with MIL-STD-348.
6. All corrosion-resistant steel-bodied connectors shall be gold plated in accordance with
ASTM B488, type II, code C, class 1.27, at least in the area of solder attachment.
FIGURE 1. General configuration.
AMSC N/A FSC 5935
MIL-PRF-39012/93C
w/AMENDMENT 1
2
ENGINEERING DATA:
Nominal impedance: 50 ohms.
Frequency range: 0 to 18 GHz.
Voltage rating: 335 volts rms maximum at sea level: 85 volts rms maximum at 70,000 feet.
Temperature rating: -65°C to +105°C.
REQUIREMENTS:
Dimensions and configuration: See figure 1 and MIL-STD-348.
Force to engage a nd dis e n gage :
Longitudinal force: Not applicable.
Torque: 2 inch-pounds maximum.
Coupling proof torque: Not applicable.
Inspection conditions: For each test of threaded coupling connector where the test is performed on
mated pairs, the pairs shall be torque d to 7 to 10 inch-pounds.
Mating characteristics: See MIL-STD-348 for dimensions.
Center contact (female):
Oversize test pin: .0375 +.0001/-.00 00 inch. See figure 2.
Test pin finish: 16 microinches.
Insertion depth: .030/.045 inch.
Number of insertions: 3.
Insertion force test:
Steel test pin diameter: .0370 +.0001/-.0000 inch.
Insertion depth: .050/.075 inch.
Test pin finish: 16 microinches.
Insertion force: 2 pounds maximum.
Withdrawal force test:
Steel test pin diameter: .0355 +.0000/-.0001 inch.
Insertion depth: .050/.075 inch.
Test pin finish: 16 microinches.
Withdrawal force: 1 ounce minimum.
Hermetic seal: Not applicable.
Leakage (pressurized connectors): Not applicable.
Insulation resistance: In accordance with MIL-STD-202-302, test condition B, 5,000 megohms minimum.
FIGURE 2. Test pin data.
MIL-PRF-39012/93C
w/AMENDMENT 1
3
Center contact retention:
Axial force: 6.0 pounds minimum.
Radial torque: 4 inch-ounces minimum.
Solderability: MIL-STD-202-208. For quality conformance inspection, the test shall be performed in group
B following the insulation resistance test.
Corrosion (salt spray): In accordance with MIL-STD-202-101, test condition B.
Voltage standing wave ratio (VSWR): Not applicable.
Connector durability:
Insertion and withdrawal force:
500 cycles minimum at 12 cycles per minute maximum.
The connector shall meet mating characteristics and force to engage and disengage requirements.
Contact resistance (in milliohms maximum):
Contact
Initial
After environment
Center contact
3.0
4.0
Outer contact
2.0
Not applicable
Dielectric withs ta ndi ng volt age at sea le ve l: In accord anc e with MIL-STD-202-301, 1,000 volts rms.
Vibration, high frequency: In accordance with MIL-STD-202-204, test condition D.
Shock (specified pulse): In accordance with MIL-STD-202-213, test condition I.
Thermal shock: In accordance with MIL-STD-202-107, test condition B, except test high temperature
shall be +125°C.
Moisture resistance: In accordance with MIL-STD-202-106. No measurements at high humidity.
Insulation resistance shall be at least 200 megohms within 5 minutes after removal from humidity.
Corona leve l:
Voltage: 250 volts minimum.
Altitude: 70,000 feet.
RF high p ote nti al withs t and ing volta ge:
Voltage and frequency: 670 volts rms at 5 MHz.
Leakage current: Not applicable.
Cable retention force: Not applicable.
Coupling mechanism retention force: Not applicable.
RF leakage: Not applicable.
Insertion loss: Not applica ble.
Group qualification: See table I.
Part or Identifying Number (PIN): M39012/93- (dash number from figure 1) (see note below).
NOTE: The center conductor terminal and the mounting legs may be tinned by the manufacturer, if
requested by an OEM. The type of tinning and any related tests may be specified by the OEM. The
tinning operation shall not cause the connectors to otherwise fail these specification requirements. The
parts are to be marked with the original PIN’s in effect prior to the tinning operation. Tinned parts are for
the OEM’s immediate use only and should not be stocked and issued by the Government for replacement
purposes.
MIL-PRF-39012/93C
w/AMENDMENT 1
4
TABLE I. Group qualification and retention testing.
Group
Submission and qualification of any
of the following connectors, X = Material
Qualifies the following
connectors
I
M39012/93-X001
M39012/93-X002
M39012/93-X003
M39012/93-X001
M39012/93-X002
M39012/93-X003
NOTE: If a connector manufacturer produces a connector which meets all the requirements for two or
more connector types (within the same series), the manufacturer may receive qualification approval for
the two or more connector types by qualifying the one connector. It is not necessary that such
connectors be in the same group. Each connector, however, must be marked with its own appropriate
PIN.
Amendment notations. The margins of this specification are marked with vertical lines to indicate
modifications generated by this amendment. This was done as a convenience only and the
Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and
contractors are cautioned to evaluate the requirements of this document based on the entire content
irrespective of the marginal notations.
Referenced documents. In addition to MIL-PRF-39012, this document references the following:
CONCLUDING MATERIAL
Custodians: Preparing activity:
Army – CR DLA – CC
Navy – EC
Air Force – 85 (Project 5935-2016-098)
Revie w ac t i vit ies :
Army – AM, AT, CR4, MI
Navy – AS, MC, O S, SH
Air Force – 19, 99
NOTE: The activities listed above were interested in this document as of the date of this document.
Since organizations and responsibilities can change, you should verify the currency of the information
above using the ASSIST Online database at https://assist.dla.mil.
MIL-STD-202-101
MIL-STD-202-204
MIL-STD-202-301
MIL-STD-348
MIL-STD-202-106
MIL-STD-202-208
MIL-STD-202-302
ASTM B488
MIL-STD-202-107
MIL-STD-202-213