MIL-C-38999(S2) American Micro, MIL-C-38999(S2) Datasheet
MIL-C-38999(S2)
Manufacturer Part Number
MIL-C-38999(S2)
Description
AMPI
Manufacturer
American Micro
Datasheet
1.MIL-C-38999S2.pdf
(4 pages)
10.
www.DataSheet4U.com
C SERIES
MIL-C-38999 Hermetic connectors were developed for
application where a controlled atmosphere such as inert
gasses, partial vacuums, or constant environments are
needed. These receptacles are designed for use in aerospace,
electronic, electrical power, and control circuits.
The “C” Series receptacles are manufactured to American
Micro Products, Inc. (AMPI / ACE) standards and meet the
intermateability requirements of MIL-C-38999 Series II. They
are hermetically sealed with an all glass seal to prevent air
leakage in excess of .01 micron cubic foot per hour at one
atmosphere. They are manufactured with conductive finishes
to provide electrical continuity between mated halves prior to
contact engagement. These connectors are manufactured in
the low silhouette design to minimize weight and size.
Standard hermetic receptacles are supplied with either solder
cup or eyelet type contact terminations. Contacts for other
applications such as thermocouple or flex prints are also
available. Standard receptacles are steel shells with nickel-iron
alloy contacts and a final coat of tin plate gold plated nickel-
iron alloy contacts or stainless steel shells with gold plated
contacts. Other materials and finishes can be supplied to meet
specific application requirements.
and vibration requirements of MIL-C-38999.
ELECTRICAL SERVICE DATA
The maximum current to be carried by the connector, based on
contact size, is the same as permitted by the wire bundle.
Maximum current ratings and corresponding voltage drops
under test condition, fully assembled, are shown below.
PART NUMBER EXPLANATION
“C” Series receptacles meet the, voltage, salt spray, shock,
CONTACT
SIZE
22D
20
16
12
MIL-C-38999 (SERIES II)
TEST CURRENT
(AMPS)
AMPI
10
17
2
5
POTENTIAL DROP
(MILLIVOLTS)
85
60
85
85
STANDARD MATERIALS AND FINISHES
FERROUS ALLOY SHELLS
Material:
Finish:
STAINLESS STEEL SHELLS
Material:
Finish:
CONTACTS
Material:
Finish:
INSERTS PINS
Material:
INTERFACIAL SEALS
Material:
BAYONET PINS
Material:
HIGH POTENTIAL TEST VOLTAGE
JAM NUT MOUNT
SOLDER MOUNT
MATING PLUG
DESCRIPTION
BOX MOUNT
100 microinches minimum fused tin per MIL-T-10727
Passivated.
50 microniches minimum gold per MIL-G-45204
Cold Rolled Steel per ASTM 108
over suitable underplate
Corrosion resistant steel per QQ-S-764, type 303 or
as specified.
Nickel-iron alloy per MIL-I-23011, class 2.
over a suitable underplate
Fluorosilicone rubber
Glass
NOTES:
1.--
2.--
3.--
4. --
5.--
6.--
7.--
8.–
Corrosion resistant steel per QQ-S-764 type 303
SERVICE
RATING
M
II
I
2-- Circular flange solder mount
3-- Square flange box mount
5-- Jam nut mount
0-- Ferrous alloy
1 thru 7- various stainless steel #303
MIL-C-38999 series I intermateability
P-- Pin
Alternate keyway position
1-- Eyelet
2-- Solder cup
0-- Nickel-iron alloy
M3-- Fused tin over copper over nickel with
Gold on contacts
M2-- Contacts gold with shell passivated
thru #347
MS27476Y*D*P
MS27476Y*D*X
MS27476Y*E*P
MS27476Y*E*X
MS27477Y*D*P
MS27477Y*D*X
MS27477Y*E*P
MS27478Y*D*P
MS27478Y*D*X
MS27478Y*E*P
MS27478Y*E*X
DESIGNATION
MS2747Y*E*X
MILITARY
TEST VOLTAGE
(RMS 60 CPS)
MS27473 - MS27484
1300
1800
2300
DESIGNATION
30C-*-*P-20
30C-*-*P-10
31C-*-*P-20
31C-*-*P-10
50C-*-*P-20
50C-*-*P-10
51C-*-*P-20
51C-*-*P-10
20C-*-*P-20
20C-*-*P-10
21C-*-*P-20
21C-*-*P-10
AMPI
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MIL-C-38999(S2) Summary of contents
Page 1
... HIGH POTENTIAL TEST VOLTAGE Cold Rolled Steel per ASTM 108 100 microinches minimum fused tin per MIL-T-10727 over suitable underplate Corrosion resistant steel per QQ-S-764, type 303 or as specified. Passivated. Nickel-iron alloy per MIL-I-23011, class 2. 50 microniches minimum gold per MIL-G-45204 ...
Page 2
... AMPI MIL-C-38999 (SERIES II) INDEX OF INSERT ARRANGEMENTS MIL-STD-1560 SHELL SIZE www.DataSheet4U.com INSERT CONTACT SIZE TOTAL ARRANGE- CONTACTS MENT ...
Page 3
... AMPI MIL-C-38999 (SERIES II) SOLDER MOUNT 20C RECEPTACLES (REF. MS27478) A SHELL PART NUMBER +.011 SIZE -.010 8 20C-8-(*)P▼-(**) 0.687 10 20C-10-(*)P▼-(**) 0.797 12 20C-12-(*)P▼-(**) 0.906 14 20C-14-(*)P▼-(**) 1.031 16 20C-16-(*)P▼-(**) 1.156 18 20C-18-(*)P▼-(**) 1.281 20 20C-20-(*)P▼-(**) 1.375 22 20C-22-(*)P▼-(**) 1.500 24 20C-24-(*)P▼-(**) 1.625 ▼ ...
Page 4
... AMPI MIL-C-38999 (SERIES II) JAM NUT MOUNT 50C RECEPTACLES (REF. MS27477) SHELL PART NUMBER SIZE 8 50C-8-(*)P▼-(**) 10 50C-10-(*)P▼-(**) 12 50C-12-(*)P▼-(**) 14 50C-14-(*)P▼-(**) 16 50C-16-(*)P▼-(**) 18 50C-18-(*)P▼-(**) www.DataSheet4U.com 20 50C-20-(*)P▼-(**) 22 50C-22-(*)P▼-(**) 24 50C-24-(*)P▼-(**) ▼REPLACE WITH ALTERNATE INSERT POSITION INDICATOR /(*) REPLACE WITH PIN ARRANGEMENT ...