SAE AS 39029-103-2000 pdf download CONTACTS, ELECTRICAL CONNECTOR, SOCKET, CRIMP REMOVABLE, COAXIAL, SIZE 1 2 (FOR MIL-C-38999 SERIES I, III, AND IV CONNECTORS)
REQUIREMENTS:
Contacts shall comply with the reliability assurance provisions of MIL-STD-790 as specified in MIL-C-38999.
Dimensions, design characteristics, and configuration: See figure 1 and table I.
Mating contacts: MIL-C-39029/1 02.
Tools: See table II.
Contact resistance: See table III.
Test current:
Inner contact – 1 .0 ampere.
Outer contact – 1 2.0 amperes.
Low signal level contact resistance (inner contact only): See table IV.
Nominal impedance: 50 ohms.
Voltage standing wave ratio (VSWR) (applicable to M1 7/1 1 3-RG31 6 cable only):
a. The VSWR of this socket contact mated with a MIL-C-39029/1 02 pin contact shall not exceed 1 .20 ± .04F (F in GHz) from 500 MHz to 3 GHz under all of the following conditions:
1 . Pin and socket contacts engaged, .755 ± .005 from retention shoulder to retention shoulder.
2. Pin and socket contacts engaged, .783 ± .005 from retention shoulder to retention shoulder.
3. Pin and socket contacts engaged, .81 0 ± .005 from retention shoulder to retention shoulder.
b. Swept frequency VSWR test setup: Mated pair of contacts shall be tested using a Hewlett-Packard 851 0 Vector Network Analyzer as follows:
1 . Use the Hewlett-Packard 851 0 calibrated at the output port or at a connector saver connected to the output port.
2. Sweep-Ramp mode, 401 points, 500 MHz to 3.0 GHz.
3. Make up one RG31 6 cable assembly (approximately 6 inches long) with a MIL-C-39029/1 02 on one end and an SMA connector on the other end.
4. Make up another RG31 6 cable assembly (approximately one foot long) with a MIL-C-39029/1 03 on one end and an SMA connector on the other end.
5. Terminate the SMA connector on the longer assembly with a 50 ohm load and mate per engagement position 1 the MIL-C-39029/1 02 and MIL-C-39029/1 03 contacts.
6. Connect the other SMA connector to the APC-3.5 port which had been calibrated.
7. Change the display to time domain, band pass.
8. Set the gate center at the coaxial contact interface and the gate width at 2.25 nanoseconds.
9. Turn the gate on and return to the frequency domain.
1 0. Plot the connector pair VSWR (S 1 1 ).
1 1 . Verify that the displayed VSWR (S 11 ) complies with the VSWR limits specified for the mated pair of contacts.
1 2. Repeat (5) through (1 1 ) with pin and socket contacts mated per engagement positions 2 and 3.
Insertion loss (applicable to M1 7/1 1 3-RG31 6 cable only): dB maximum = .1 1 x (F in GHz). When measured in accordance with MIL-C-3901 2 at 3 GHz, the insertion los shall not exceed .20 dB.
Contact engagement and separation forces (inner socket contact only): The engagement depth shall be as encountered in normal service. The test pins shall be in accordance with MS31 97 except the diameters shall be as specified in table V, and surface roughness shall not exceed 3 microinches. Provision for clearance hole shall be provided (see table V).