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MTCST-YH2-R03

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P35
Tyco Electronics Corporation
300 Constitutional Drive
Menlo Park, CA 94025 USA
No: C-6111
Rev: G
Date: November 5, 1993
Page: 31 of 35
If this document is printed it becomes uncontrolled. Check for the latest revision.
4.5.23.2 Salt Spray (Dynamec Tast). Terminated plugs and receptacles shall be mated and
unmated 50 cycles at a rate not to exceed 300 cycles per hour. The plug and receptacle
shall be completely separated during the demate portion of the cycle. The connectors
shall then be mated and exposed to salt fog for 452 hours in accordance with MIL-
STD-1344, Method 1001. The connectors shall then be unmated and exposed to the salt
fog for 48 hours. Suitable measures shall be taken to preclude migration of
condensation along the conductors. Following the salt fog exposure, 450 mate and
unmate cycles shall be performed.
4.5.24 Ozone Exposure (see 3.6.22). Terminated, unmated connector assemblies shall be tested
in accordance with MIL-STD-1344, Method 1007.
4.5.25 Fluid Immersion (see 3.6.23). Terminated connector assemblies shall be tested in
accordance with MIL-STD-1344, Method 1016, except that measurement of initial
mating and unmating forces is not required. The following exceptions and additional
fluids shall be incorporated into the procedure:
a. One sample shall be tested in hydraulic fluid per MIL-H-83282, using the same
procedure as for MIL-H-5606 hydraulic fluid.
b. One sample shall be tested in MIL-T-5624, Grade JP-4, using the same procedure
as for MIL-T-5624, Grade JP-5.
c. Conditioning in coolant-dielectric fluid (Coolanol) shall be at the maximum rated
temperature.
d. One sample shall be tested in mineral-based lubricating oil per MIL-L-6082,
using the same procedure as for MIL-L-7808 lubricating oil.
e. Samples shall be tested in each of the following fluids, using the same procedure
as for MIL-H-5606 hydraulic fluid, except that the connectors shall be immersed
mated: Monsanto Skydrol 500 B-4, Monsanto Skydrol LD4, Chevron Hyjet IV
f. One sample shall be tested in uncracked, unleaded gasoline ("white gas"), using
the same procedure as for MIL-G-3056 gasoline.
4.5.26 Magnetic Permeability (see 3.6.24). Terminated, unmated connector assemblies shall
be tested in accordance with MIL-STD-1344, Method 3006.
4.5.27 Solderability (see 3.6.25). Terminals shall be tested in accordance with MIL-STD-202,
Method 208.
Tyco Electronics Corporation
300 Constitutional Drive
Menlo Park, CA 94025 USA
No: C-6111
Rev: G
Date: November 5, 1993
Page: 32 of 35
If this document is printed it becomes uncontrolled. Check for the latest revision.
4.5.28 Industrial Gas (see 3.6.26). Terminated, unmated connector assemblies shall be placed
on a noncorrosive rack in a closed plastic or glass chamber with a maximum volume of
2 cubic feet (56 cubic decimeters) containing a 10- percent solution of sulfurated potash
NF in distilled water. Samples shall not be immersed in the solution but shall be
exposed to the sulfide vapor for a minimum of 100 hours.
4.5.29 Contact Inductive Load Switching (3.6.27). Each of five contacts shall be demated ten
times while supplying current to an inductive load. The circuit parameters shall be 5.0
amperes for size 22 contacts, 2.0 amperes for size 26 contacts, 115 volts, 400 Hz and
0.70 ± 0.05 lagging power factor.
4.5.30 Overload Current and Circuit Breaker Compatibility (see 3.6,28). Contacts in a mated
connector assembly shall be subjected to overload currents and times specified in Table
XV. The rated current shall be the maximum current as specified in Table 11. Each
overload condition shall be tested five times using a different contact each time.
Table XV. Overload Conditions
Time
(Seconds)
Overload Current
(% of Rated Current)
0.35
1.0
300.0
2000
1000
200
4.5.31 Temperature Rise at Rated Current (see 3.6,29). Contacts shall be terminated to round
wires: size 26 contacts to 26 AWG wire, size 22 contacts to 22 AWG wire. Except for
two wires for connection to the current source, the wires shall extend 2 inches (50 mm)
beyond the ends of the terminals, and all the contacts shall be series wired. The
connectors shall be assembled with a thermocouple positioned against the interfacial
seal at the midpoint of the insert. The connector assembly shall be suspended on edge
in still air, at least 12 inches (30 cm) from the nearest surface, using twine or cord. The
ambient temperature shall be maintained within ± 1° during the test. The initial
temperature at the thermocouple shall be recorded, and then a direct current of 2.0
amperes for size 26 contacts or 5.0 amperes for size 22 contacts shall be applied to the
series wired connector contacts. The final temperature at the thermocouple shall be
recorded after steady-state conditions are reached.
4.5.32 Insert Materials.
4.5.32.1 Tensile Strength (see 3.6.30.1).
Tensile strength shall be determined according to
ASTM D 638 on Type IV molded tensile bars, utilizing a crosshead speed of 2.0 inches
(50 mm) per minute.
Tyco Electronics Corporation
300 Constitutional Drive
Menlo Park, CA 94025 USA
No: C-6111
Rev: G
Date: November 5, 1993
Page: 33 of 35
If this document is printed it becomes uncontrolled. Check for the latest revision.
4.5.32.2 Deflection Temperature (see 3.6.30.2). The deflection temperature at 66 psi (455 kPa)
maximum fiber stress shall be determined in accordance with ASTM D 648. Specimen
width shall be 0.125 inch (3 mm). (The required load is 0.34 lbf or 1.54 N.)
4.5.32.3 Water Absorption (3.6.30.3). Water absorption shall be measured in accordance with
ASTM D 570 using 2.0 x 0.5 x 0.125 inch (51 x 13 x 3 mm) molded specimens. The
test specimens shall be preconditioned for 24 hours at 100°C before immersion.
Immersion time shall be 24 hours.
4.5.32.4 Flammability (see 3.6.3). Flammability shall be tested in accordance with UL 94V
(para. 3.6.3.15) using 5.0 x 0.5 x 0.125 inch (127 x 13 x 3 mm) molded specimens.
4.5.32.5 Smoke Generation (see 3.6.30.5). Smoke generation shall be determined in accordance
with ASTM F 814. Specimens shall be 3.0 x 3.0 x 0.125 inch (76 x 76 x 3 mm) molded
wafer material. Three specimens shall be tested under flaming exposure and three under
nonflaming exposure.
4.5.33 Insert Impact Resistance (see 3.6.31). The impact resistance of unterminated, as
molded pin and socket removable inserts shall be determined in accordance with
ASTM D 256, Method E. The insert shall be unnotched and shall be inserted into the
vise with the smooth side of the insert toward the fixed vise jaw. A groove shall be
made in the metal support to accommodate the insert keyway. The 2.0 ft.lb. hammer
shall strike the insert not less than 0.05 inch (1.0 mm) from the upper edge of the insert,
and at least 0.65 inch (16.5 mm) from the vise jaws.
4.5.34 Insert Impact Chip Resistance (see 3.6.32). Unterminated pin and socket removable
inserts shall be tested in accordance with ASTM D 256, Method E, using 0.5 ft-lbf (0.7
J) energy level. The insert shall be unnotched. It shall be supported over its full height
and width by a 0.25inch (6-mm) thick steel plate with a groove for the insert keyway
and shall be inserted into the vise with the smooth side of the insert supported by the
metal plate. The impacting tool shall be spheroid in shape, with a radius of 0.50 inch
(12.7 mm), and shall strike the insert 0.25 inch (6 mm) from the end of the insert and
centered between the two edges. After impact, the insert shall be examined with the
unaided eye for evidence of chipping or other fracture.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P35

MTCST-YH2-R03

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TE Connectivity
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Rack & Panel Connectors MTCST-YH2-R03
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