MIL-DTL-27434/28A
ENGINEERING DATA:
Impedance: 50 ohms, nominal.
Frequency range: Frequency range: 0 to 2 GHz.
Voltage rating: 500 V rms, maximum at sea level.
125 V rms, maximum at 70,000 feet.
Temperature rating: -65º C to +165º C.
REQUIREMENTS:
Dimensions and configuration: See figure 1.
Mating characteristics: Series BNC pin contact in accordance with MIL-STD-348, and series
QDS socket contact interface shall be in accordance with MIL-DTL-27434 after assembly.
Contact gage test (series QDS only):
The center contact shall be subjected to the following gage test prior to assembly into the
adapter. The pins that are used in the performance of these tests may be tapered at theirs ends
to facilitate insertion, but the tapered portions shall not be included in the specified dimensions.
A pin 0.100 inch minimum in diameter shall be inserted to a depth of 0.125 inch minimum, and
then removed. The contact shall be then tested as follows:
a. A pin 0.074 inch minimum in diameter shall be inserted to a depth of 0.200 inch minimum
shall not deflect the contact members.
b.
A pin 0.080 inch maximum in diameter inserted to depth of 0.125 inch minimum shall make
contact with all four contact members within 0.015 inch of their tip ends.
c.
A pin 0.093 inch minimum in diameter inserted to a depth of 0.062 inch minimum shall not
cause the contact members to bow perceptibly.
Dielectric withstanding voltage: Method 301 of MIL-STD-202, 1,500 V rms minimum at sea level.
Corrosion: Applicable.
Vibration: Applicable.
Shock: Applicable.
Part or Identifying Number (PIN): UG-1136/U.
Supersession: This document supersedes drawing REB49306.
Changes from previous issue. Marginal notations are not used in this revision to identify changes with
respect to the previous issue due to the extent of the changes.
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