MIL-C-28748/7/8
www.vishay.com
Vishay Dale
Rack and Panel Connectors Military, MIL-C-28748/7/8 Qualified
Microminiature Rectangular
FEATURES
• Qualified to MIL-C-28748/7/8
• Solder cup contacts
• Fixed and turnable screwlocks
• Closed entry socket contacts
• Group A, B testing per MIL-C-28748
APPLICATIONS
Especially suited for use in airborne, instrumentation and
portable equipment applications or wherever the following
requirements must be met: Minimum space and weight
without sacrifice of performance, high quality materials, long
service life, high vibration and shock resistance and positive
locking.
ELECTRICAL SPECIFICATIONS
Current Rating:
Model MM22 = 5 A
Breakdown Voltage:
At sea level: 2000 V
RMS
At 70 000 feet: 500 V
RMS
MATERIAL SPECIFICATIONS
Contact Pin:
Phosphor bronze
Contact Socket:
Phosphor bronze
Contact Plating:
Gold 50 micro-inches per ASTM B488
Screwlocks:
Stainless steel, passivated
Guides:
Stainless steel, passivated
Standard Body:
Glass-filled diallyl phthalate per
ASTM D5948, Model SDG-F, green
DIMENSIONS
in inches [millimeters]
/8
With Solder Cup Contacts
/7
With Solder Cup Contacts
0.030 ± 0.0005
0.110 [2.79]
Typ.
0.034 [0.864] Dia.
Solder Cup
0.140
[3.56]
/8
With Fixed Guides 00G1A
0.230
[5.84]
0.620
[15.75]
0.140
[3.56]
0.040
[1.02]
Typ.
/7
With Fixed Guides 00G1A
“A”
End of
Connector
0.590
[14.99]
0.250
[6.35]
0.034
[0.864]
Dia.
Solder Cup
#22
AWG Max.
0.030
[0.762]
Typ.
0.125
Sockets
Pins
0.110 [2.79]
0.078
2-56 UNC-2A
Typ.
Revision: 24-Feb-14
Document Number: 36009
1
For technical questions, contact:
connectors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
MIL-C-28748/7/8
www.vishay.com
Vishay Dale
NUMBER OF
CONTACTS
F (34)
G (44)
H (50)
PANEL CUTOUT
in inches [millimeters]
A
NUMBER OF
CONTACTS
B (7)
A
0.210 [5.33]
0.270 [6.86]
0.270 [6.86]
0.270 [6.86]
B
C
A
0.380 [9.65]
0.380 [9.65]
0.380 [9.65]
B
1.03 [26.16]
1.28 [32.51]
1.41 [35.81]
C
0.910 [23.11]
1.16 [29.46]
1.28 [32.51]
0.562 [14.27] 0.440 [11.18]
0.625 [15.88] 0.500 [12.70]
0.814 [20.68] 0.690 [17.53]
1.0 [25.40]
0.870 [22.10]
B C
0.050
[1.27]
R Typ.
C (14)
D (20)
0.093 [2.36]
E (26)
ORDERING INFORMATION
CONNECTOR
M28748/7
C
MM
P
22
G5
-
NUMBER OF
CONTACTS
HARDWARE
OPTIONS
CONTACTS MODEL
CONTACT CONTACT PLATING
STYLE
SIZE
P = Pin
S = Socket
HARDWARE
Microminiature
22 AWG = 0.030"
[0.762 mm] diameter
G5 = Gold (0.00005 thick)
over nickel
Closed entry socket contacts
B (7)
C (14)
D (20)
E (26)
F (34)
G (44)
H (50)
M28748/8 same as /7
00G1A =
00F1A =
00S1A =
00E1A =
Long
slotted cres guides 0.078" [1.98 mm] diameter
Chassis mounted fixed screwlocks
long
(2-56 thread)
Cable mounted - turnable screwlocks (2-56 thread)
Cable mounted - turnable screwlocks (2-56 thread)
with short knobs
Revision: 24-Feb-14
Document Number: 36009
3
For technical questions, contact:
connectors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
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Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please
contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
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Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free
requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21
conform to JEDEC JS709A standards.
Revision: 02-Oct-12
1
Document Number: 91000
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