MM22, MM24
www.vishay.com
Vishay Dale
Rack and Panel Connectors Military, MIL-C-28748/7/8 Qualified
and Commercial Microminiature Rectangular
FEATURES
• Qualified to MIL-C-28748/7/8
• Solder cup contacts
• Dip solder contacts
• Fixed and turnable screwlocks
• Optional closed entry socket contacts
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
Model MM24 = 3 A
Breakdown Voltage: At sea level: 2000 VRMS
At 70 000 feet: 500 VRMS
MATERIAL SPECIFICATIONS
Contact Pin: Phosphor bronze
Contact Socket: Phosphor bronze (Beryllium copper
available on request)
Contact Plating: Gold
Screwlocks: Stainless steel, passivated
Guides: Brass, gold plated or stainless steel, passivated
Standard Body: Glass-filled diallyl phthalate per MIL-M-14,
Model SDG-F, green
DIMENSIONS in inches [millimeters]
MMS
With Solder Cup Contacts
0.110 [2.79]
Typ.
0.034 [0.864] Dia.
Solder Cup
MMP
With Solder Cup Contacts
MMDS
With Dip Solder Contacts
0.030
[0.762]
D
B
MMDP
With Dip Solder Contacts
0.140
[3.56]
0.140
[3.56]
C
D
CONTACT GAUGE
B DIAMETER
CONTACT GAUGE
C DIP TAIL LENGTH
D DIAMETER
22 AWG
0.030 ± 0.001
[0.762 ± 0.025]
22 AWG
0.160 or 0.350
[4.06 or 8.89] nom.
0.025
[0.635]
24 AWG
0.025 ± 0.001
[0.635 ± 0.025]
24 AWG
0.160 or 0.350
[4.06 or 8.89] nom.
0.025
[0.635]
Revision: 24-Feb-14
Document Number: 36008
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
MM22, MM24
www.vishay.com
Vishay Dale
DIMENSIONS in inches [millimeters]
MMS
With Fixed (026, 027) Guides
0.230 [5.84]
0.140 [3.56]
0.030 [0.762]
Wide
x
0.040 [1.02]
Deep
Slot Typ.
0.110 [2.79]
0.034 [0.864] Dia.
Solder Cup
#22 or #24
AWG Max.
0.490
[12.45]
0.230 [5.84]
“A”
End of
Connector
0.620
[15.75]
0.230
[5.84]
0.140
[3.56]
0.040
[1.02]
Typ.
0.034
[0.864]
Dia.
Solder Cup
#22 or #24
AWG Max.
MMP
With Fixed (026L, 027L)
Guides
“A”
End of
Connector
0.590
[14.99]
Revision: 24-Feb-14
026L
0.078
[1.98]
0.125
[3.17]
027
0.078
[1.98]
0.125
[3.17]
027L
0.078
[1.98]
0.125
[3.17]
Short Turnable
Screwlocks (SK030)
Fixed
Screwlocks (SLL)
0.250
[6.35]
0.950
[24.13]
0.140
[3.56]
0.030 [0.762]
Wide
x
0.040 [1.02]
Deep
Typ.
0.046 [1.17] Wide x
0.062 [1.57] Deep
Typ.
0.187
[4.75]
Dia.
0.140
[3.56]
0.110 [2.79]
0.110
[2.79]
0.910
[23.11]
0.500
[12.70]
Fixed Screwlocks
And Nylon Retaining Nut
And Fiber Washer (NSL)
0.620
[15.75]
0.230
[5.84]
Turnable
Screwlocks (SK)
0.540
[13.72]
0.590
[14.99]
Short Turnable
Screwlocks (SK2035)
0.240 [6.10]
Typ.
0.610
[15.49]
0.140
[3.56]
0.093
[2.36]
Hex Socket
0.090 [2.29]
Deep Typ.
0.034 [0.864]
Dia.
Solder Cup
#22 or #24
AWG Max.
0.520
[13.21]
0.125
[3.17]
0.160 [4.06]
0.250
[6.35]
2-56 UNC-2A
Typ.
0.110 [2.79]
0.140
[3.56]
0.078
[1.98]
0.140
[3.56]
0.124
[3.15]
Dia.
0.490
[12.45]
026
E Dia.
0.030
[0.762]
Typ.
Fixed
Screwlocks (SL)
F DIAMETER
0.140
[3.56]
F Dia.
MMS
With Fixed (026L, 027L)
Guides
E DIAMETER
MMP
With Fixed (026, 027) Guides
0.520
[13.21]
2-56 UNC-2A
Thread Typ.
HARDWARE
TYPE
0.110
[2.79]
0.590
[14.99]
0.180
[4.57]
Dia.
0.620
[15.75]
0.580
[14.73]
0.110
[2.79]
Document Number: 36008
2
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
MM22, MM24
www.vishay.com
Vishay Dale
HARDWARE MATING CHART
HARDWARE MODEL
MATES WITH HARDWARE MODEL
026
026, 026L
027
027, 027L
SK
SL, NSL or SLL
SK030
SL, NSL or SLL
SK2
SL2, NSL2 or SL2L
SK2030
SL2, NSL2 or SL2L
SK2035
SL2, NSL2 or SL2L
NOTE:
EITHER MMP OR MMS CONNECTORS MAY BE
ORDERED WITH ANY TYPE OF HARDWARE SHOWN.
EXAMPLES:
1. MMP WITH 026 HARDWARE WOULD MATE WITH AN
MMS WITH 026 HARDWARE.
2. MMS WITH SK HARDWARE WOULD MATE WITH AN
MMP WITH SL OR NSL HARDWARE.
3. MMS WITH SL2 HARDWARE WOULD MATE WITH AN
MMP WITH SK2 OR SK2030 HARDWARE.
DIMENSIONS in inches [millimeters]
NOTE: The views below show the wiring side of a pin model connector (female is opposite). Socket hardware assembled at “A” contact end
of a pin model connector.
0.210 ± 0.020
[5.33 ± 0.508]
0.210 ± 0.020
[5.33 ± 0.508]
0.210 ± 0.020
[5.33 ± 0.508]
0.105 [2.67]
0.030
[0.762]
R Typ.
(5 thru 9)
A
A
C
B
D
C
0.468
[11.89] 0.690
[17.53]
E
0.135
[3.43]
L
P
T
W
E
J
M
A
R
U
H
L
S
V
X
0.814
[20.68]
1.06
[26.92]
20 CONTACTS
Revision: 24-Feb-14
K
B
E
J
M
P
R
T
U
W
Z
c
X
a
S
V
Y
b
F
J
0.656
[16.66]
0.135
[3.43]
H
1.0
[25.40]
1.25
[31.75]
d
26 CONTACTS
L
P
T
W
Z
c
f
C
B
E
J
F
K
M
E
J
M
0.190
[4.83]
R
U
X
a
d
K
S
V
Y
b
e
D
E
D
C
E
h
29 CONTACTS
R
P
S
T
U
W
1.34
[34.04]
L
N
AA
EE
KK
X
Y
CC
BB
Z
DD
FF
HH
V
LL
MM
JJ
1.03
[26.16]
1.25
[31.75]
NN
34 CONTACTS
N
P
N
R
A
C
0.625
[15.88]
0.880
[22.35]
H
M
S
U
X
W
0.190
[4.83]
S
W
AA
EE
KK
Y
BB
YY
DD
CC
FF
HH
MM
PP
UU
SS
Z
LL
JJ
NN
RR
WW
VV
P
B
D
J
N
T
U
A
M
L
V
K
1.28
[32.51]
1.50
[38.10]
TT
XX
0.190
[4.83]
F
L
R
0.656
[16.66]
0.870
[22.10]
V
18 CONTACTS
F
R
E
0.380
[9.65]
B
T
S
J
K
M
K
M
F
H
1.09
[27.69]
J
H
B
F
K
C
C
A
C
14 CONTACTS
A
F
N
B
D
E
H
J
L
M
P
0.780
0.532 [19.81]
[13.51]
C
B
A
0.380
[9.65]
0.380
[9.65]
0.380
[9.65]
0.135
[3.43]
11 CONTACTS
0.135
[3.43]
D
F
N
D
0.270
[6.86]
C
K
0.060
[1.52]
R Typ. A
D
0.880 (11 thru 44) H
L
[22.35]
B
9 CONTACTS
A
F
K
H
0.135
[3.43]
C
N
F
E
7 CONTACTS
D
H
C
0.562
[14.27] 0.790
[20.07]
D
0.270
[6.86]
0.270
[6.86]
B
A
B
H
5 CONTACTS
A
0.105 [2.67]
0.105 [2.67]
E
D
0.270
[6.86]
0.270
[6.86]
a
e
E
H
K
U
L
R
T
X
V
Z
b
c
k
r
F
J
Y
h
v
B
D
N
P
0.190
[4.83]
n
t
d
f
m
j
p
s
w
u
1.41
[35.81]
1.62
[41.15]
x
y
AA
CC
BB
DD
EE
HH
FF
z
ZZ
44 CONTACTS
50 CONTACTS
Document Number: 36008
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
MM22, MM24
www.vishay.com
Vishay Dale
MOUNTING VARIATIONS in inches [millimeters]
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
DIP SOLDER PC BOARD
MOUNTING PATTERNS
Male (MMP) connector
shown - female is opposite.
Contact, contact row and
mating hole CL to CL
Dimensions also applies to
solder cup style connectors.
A
A
A
0.188
[4.78]
Ref.
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
0.040
[1.02]
0.140
[3.56]
Typ.
0.081 [2.06]
0.140 [3.56]
Typ.
0.093 [2.36]
Dia. Typ.
0.532
[13.51]
0.081
[2.06]
0.125 [3.17]
Typ.
0.162 [4.11]
0.124 [3.15]
Typ.
C
A
B
0.564
[14.33]
Ref.
0.814
[20.68]
0.162 [4.11]
0.125
[3.17]
Typ.
0.093 [2.36]
Dia. Typ.
A
0.047 [1.19]
Typ.
0.093 [2.36]
Dia. Typ.
C
A
B
1.0
[25.40]
0.081
[2.06]
0.162 [4.11]
0.124
[3.15]
Typ.
26 CONTACTS
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
B
D
A
0.846
[21.49]
Ref.
1.09
[27.69]
0.081
[2.06]
0.124
[3.15]
Typ.
0.162 [4.11]
29 CONTACTS
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
B
C
D
A
C
C
0.752
[19.10]
Ref.
1.03
[26.16]
0.140 [3.56]
Typ.
0.090
[2.29]
Typ.
0.135
[3.43]
0.270 [6.86]
Typ.
34 CONTACTS
Revision: 24-Feb-14
0.270 [6.86]
Ref.
A
0.752
[19.10]
Ref.
20 CONTACTS
D
0.135
[3.43]
Typ.
B
0.081
[2.06]
B
0.140 [3.56]
Typ.
0.090 [2.29] Typ.
18 CONTACTS
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
C
0.656
[16.66]
14 CONTACTS
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
C
0.625
[15.88]
0.081
[2.06]
A
D
0.376
[9.55]
Ref.
B
0.376
[9.55]
Ref.
0.162 [4.11]
11 CONTACTS
0.047 [1.19]
Typ.
B
A
C
B
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
A
C
0.656
[16.66]
0.040
0.140 [3.56]
[1.02]
Typ.
0.081 [2.06]
9 CONTACTS
7 CONTACTS
0.047 [1.19]
Typ.
B
0.376
[9.55]
Ref.
0.562
[14.27]
0.040
[1.02]
0.081 [2.06]
5 CONTACTS
0.282
[7.16]
Ref.
B
0.282
[7.16]
Ref.
0.468
[11.89]
B
0.987
[25.07]
Ref.
0.090
[2.29]
Typ.
1.28
[32.51]
0.147 [3.73]
0.135 Typ.
[3.43]
0.270 [6.86]
Typ.
44 CONTACTS
1.13
[28.70]
Ref.
0.090
[2.29]
Typ.
1.41
[35.81]
0.135
[3.43]
Typ.
0.140
[3.56]
Typ.
0.270 [6.86]
Ref.
50 CONTACTS
Document Number: 36008
4
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
MM22, MM24
www.vishay.com
Vishay Dale
PANEL CUTOUT in inches [millimeters]
NUMBER OF
CONTACTS
A
B
C
NUMBER OF
CONTACTS
A
B
C
5
0.210
[5.33]
0.468
[11.89]
0.340
[8.64]
20
0.270
[6.86]
0.814
[20.68]
0.690
[17.53]
7
0.210
[5.33]
0.562
[14.27]
0.440
[11.18]
26
0.270
[6.86]
1.0
[25.40]
0.870
[22.10]
9
0.210
[5.33]
0.656
[16.66]
0.530
[13.46]
29
0.270
[6.86]
1.09
[27.69]
0.970
[24.64]
11
0.270
[6.86]
0.532
[13.51]
0.410
[10.41]
34
0.380
[9.65]
1.03
[26.16]
0.910
[23.11]
14
0.270
[6.86]
0.625
[15.88]
0.500
[12.70]
44
0.380
[9.65]
1.28
[32.51]
1.16
[29.46]
18
0.380
[9.65]
0.656
[16.66]
0.530
[13.46]
50
0.380
[9.65]
1.41
[35.81]
1.28
[32.51]
A
B C
0.050
[1.27]
R Typ.
0.093 [2.36]
DIMENSIONS in inches [millimeters]
PANEL CUTOUT
NOTE: The views below show the wiring side of a pin model connector (socket style is
opposite). Socket hardware is assembled at “A” contact end of pin connector.
in inches [millimeters]
0.160
[4.06]
0.500
[12.70]
0.344
[8.74]
0.093
[2.36]
0.172
[4.37]
0.250
[6.35
0.060
[1.52] R
0.500
[12.70]
0.344
[8.74]
0.093 [2.36]
R 2 Places
0.113
[2.87]
0.155
[3.94]
0.047
[1.19]
0.893 Typ.
[22.68]
Ref.
0.126 + 0.002 - 0.000
[3.20 + 0.051 - 0.000]
Dia. Typ.
0.080
[2.03]
Typ.
C
E
B
D
0.172
[4.37]
A
0.093 [2.36]
Dia. Typ.
0.250
[6.35]
0.893
[22.68]
Ref.
1.20
[30.48]
1.08
[27.43]
1.20
[30.48]
1.43 0.047 [1.19]
Typ.
[36.32]
0.090
[2.29] Typ.
1.20
[30.48]
0.344
[8.74]
0.093 [2.36]
Dia. Typ.
0.172
[4.37]
0.155 [3.94]
Typ.
0.360
[9.14]
Ref.
0.180
[4.57]
Typ.
0.093
[2.36]
“C50” Configuration
0.090 [2.29]
Typ.
“C50” Configuration
DIP SOLDER PC BOARD MOUNTING PATTERNS
Male (MMP) connector shown - female is opposite. Contact, contact row and mating hole CL to
CL dimensions also applies to solder cup style connectors.
Revision: 24-Feb-14
Document Number: 36008
5
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
MM22, MM24
www.vishay.com
Vishay Dale
ORDERING INFORMATION
CONNECTOR
MM
C
D1
HARDWARE
B
P
22
G
-
5
R
026 (1)
CONTACTS MODEL TERMINATION (OPTIONAL) CONTACT CONTACT PLATING NUMBER OF (OPTIONAL) HARDWARE
STYLE
SIZE
CONTACTS
VARIATIONS
Microminiature
R = Reversed guides
or screwlocks
(Omit for standard)
P = Pin
S = Socket
B = Beryllium copper
contacts optional on
solder cup socket
contacts only.
(Omit for standard
contacts)
(OPTIONAL)
Dip solder termination optional.
(Omit for standard solder cup)
Select tail length:
D1 = 0.160" [4.06 mm] nominal
D2 = 0.350" [8.89 mm] nominal
22 AWG = 0.030"
[0.762 mm] diameter
24 AWG = 0.025"
[0.635 mm] diameter
Optional plating available:
G = Gold (0.00003 thick) over Nickel
G5 = Gold (0.00005 thick) over Nickel
Omit designator for gold
(0.00001 thick) over Nickel
5, 7, 9, 11, 14, 18, 20, 26, 29, 34, 44 or 50 (2)
(OPTIONAL)
Closed entry socket contacts
optional on 22 AWG socket
contacts only.
(Omit for standard contacts)
(Omit if no hardware desired)
026 = Slotted brass guides 0.078" [1.98 mm] diameter
026L = Long slotted brass guides 0.078" [1.98 mm] diameter
027 = Slotted cres guides 0.078" [1.98 mm] diameter
027L = Longslotted cres guides 0.078" [1.98 mm] diameter
SL = Chassis mounted fixed screwlocks (3-48 thread)
SL2 = Chassis mounted fixed screwlocks (2-56 thread)
SLL = Chassis mounted fixed screwlocks long (3-48 thread)
SL2L = Chassis mounted fixed screwlocks long (2-56 thread)
NSL = Chassis mounted fixed screwlocks (3-48 thread)
with nylon retaining nuts and fiber washers
NSL2 = Chassis mounted fixed screwlocks (3-48 thread)
with nylon retaining nuts and fiber washers
SK = Cable mounted - turnable screwlocks (3-48 thread)
SK2 = Cable mounted - turnable screwlocks (2-56 thread)
SK030 = Cable mounted - turnable screwlocks (3-48 thread)
with short knobs
SK2030 = Cable mounted - turnable screwlocks (2-56 thread)
with short knobs
SK2035 = Cable mounted - tunable screwlocks (2-56 thread)
with socket head knobs
Notes
(1) To order complete connector with hardware supplied unassembled, add suffix “UA” on end of hardware designation.
(2) 50 contact connectors are available in either the standard 4-row contact arrangement per MIL-C-28748 or a special 5-row contact
arrangement. To order the special 5-row contact arrangement, use the designator “C50” for the number of contacts.
Revision: 24-Feb-14
Document Number: 36008
6
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
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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
purpose, non-infringement and merchantability.
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.
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for informational purposes only. Inclusion of these hyperlinks does not constitute an endorsement or an approval by Vishay of
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Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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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.
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© 2022 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 01-Jan-2022
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Document Number: 91000