MM22, MM24
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Revision: 24-Feb-14 1Document Number: 36008
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THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
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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]
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]
MMS
With Solder Cup Contacts
MMP
With Solder Cup Contacts
0.034 [0.864] Dia.
Solder Cup
0.110 [2.79]
Typ.
B
0.140
[3.56]
MMDS
With Dip Solder Contacts
MMDP
With Dip Solder Contacts
D
0.030
[0.762]
0.140
[3.56]
C
D
MM22, MM24
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Revision: 24-Feb-14 2Document Number: 36008
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THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
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DIMENSIONS in inches [millimeters]
HARDWARE
TYPE E DIAMETER F DIAMETER
026 0.078
[1.98]
0.125
[3.17]
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]
MMS
With Fixed (026, 027) Guides
0.520
[13.21]
0.230 [5.84]
2-56 UNC-2A
Thread Typ. 0.030 [0.762]
Wide
x
0.040 [1.02]
Deep
Slot Typ.
0.110 [2.79]
0.140 [3.56]
F Dia.
0.034 [0.864] Dia.
Solder Cup
#22 or #24
AWG Max.
MMP
With Fixed (026, 027) Guides
0.140
[3.56]
“A”
End of
Connector
0.230 [5.84]
E Dia.
0.490
[12.45]
0.140
[3.56]
MMS
With Fixed (026L, 027L)
Guides
0.040
[1.02]
Typ.
0.620
[15.75]
0.230
[5.84]
0.140
[3.56]
0.110 [2.79]
0.034
[0.864]
Dia.
Solder Cup
#22 or #24
AWG Max.
0.030
[0.762]
Typ.
MMP
With Fixed (026L, 027L)
Guides
2-56 UNC-2A
Typ.
0.590
[14.99]
0.250
[6.35]
“A”
End of
Connector
Short Turnable
Screwlocks (SK030)
0.500
[12.70]
0.160 [4.06]
0.540
[13.72]
0.030 [0.762]
Wide
x
0.040 [1.02]
Deep
Typ.
0.110
[2.79]
0.140
[3.56]
0.124
[3.15]
Dia.
Turnable
Screwlocks (SK)
0.110 [2.79]
0.950
[24.13]
0.910
[23.11]
0.046 [1.17] Wide x
0.062 [1.57] Deep
Typ.
0.187
[4.75]
Dia.
Fixed
Screwlocks (SL)
0.140
[3.56]
0.490
[12.45]
0.520
[13.21]
Fixed
Screwlocks (SLL)
0.034 [0.864]
Dia.
Solder Cup
#22 or #24
AWG Max.
0.140
[3.56]
0.230
[5.84]
0.110
[2.79]
0.620
[15.75]
0.590
0.250
[6.35]
[14.99]
Fixed Screwlocks
And Nylon Retaining Nut
And Fiber Washer (NSL)
0.620
[15.75]
0.590
[14.99]
Short Turnable
Screwlocks (SK2035)
0.580
[14.73]
0.140
[3.56]
0.110
[2.79]
0.610
[15.49]
0.240 [6.10]
Typ.
0.093
[2.36]
Hex Socket
0.090 [2.29]
Deep Typ.
0.180
[4.57]
Dia.
MM22, MM24
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Revision: 24-Feb-14 3Document Number: 36008
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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
HARDWARE MATING CHART
HARDWARE MODEL MATES WITH HARDWARE MODEL
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.
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
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.
7 CONTACTS5 CONTACTS 9 CONTACTS 11 CONTACTS 14 CONTACTS 18 CONTACTS
AB
CD
E
0.380
[9.65]
0.656
[16.66]0.870
[22.10]
0.190
[4.83]
AB
CD
EF
HJ
K
ML
N
PR
ST
UV
0.656
[16.66] 0.880
[22.35]
0.105 [2.67]
AB
CD
EF
HJ
K
0.880
[22.35]
0.270
[6.86]
0.625
[15.88]
0.135
[3.43]
ABC
DEF
HJK
L
MN
R
P
0.690
[17.53]
0.468
[11.89]
0.105 [2.67]
0.030
[0.762]
R Typ.
(5 thru 9)
0.210 ± 0.020
[5.33 ± 0.508]
0.210 ± 0.020
[5.33 ± 0.508]
0.210 ± 0.020
[5.33 ± 0.508]
0.790
[20.07]
0.562
[14.27]
0.105 [2.67]
AB
C
ED
F
H
0.270
[6.86]
0.532
[13.51]
0.780
[19.81]
0.060
[1.52]
R Typ.
(11 thru 44)
0.135
[3.43]
AB
C
DEF
HJK
LM
20 CONTACTS
1.06
[26.92]
0.814
[20.68]
0.135
[3.43]
0.270
[6.86]
ABC
DEF
HJK
LMN
PRS
TUV
WX
44 CONTACTS
0.190
[4.83]
1.50
[38.10]
0.380
[9.65]
1.28
[32.51]
AB
CD
EF
J
HKL
MN
PR
ST
UV
WX
YZ
AA BB
CC DD
EE FF
HH JJ
KK LL
MM NN
PP RR
SS TT
UU VV
WW XX
YY ZZ
26 CONTACTS
1.25
[31.75]
1.0
[25.40]
0.135
[3.43]
0.270
[6.86]
BC
DEF
HJK
LMN
PRS
TUV
a
Z
Y
Xb
d
W
c
A
29 CONTACTS
1.09
[27.69]
1.34
[34.04]
0.135
[3.43]
0.270
[6.86]
TU
ABC
DF
E
HJK
LMN
PRS
V
WXY
Zab
cde
fh
34 CONTACTS
0.190
[4.83]
1.03
[26.16]
1.25
[31.75]
0.380
[9.65]
AB
CD
EF
HJ
KL
MN
PR
ST
UV
W
YZ
AA
X
BB
CC DD
EE FF
HH JJ
KK
LL
MM NN
50 CONTACTS
0.190
[4.83]
1.41
[35.81]
1.62
[41.15]
0.380
[9.65]
AB
CD
EF
HJ
KL
MN
a
PR
ST
UV
W
AA
X
YZ
BB CC
DD EE
FF HH
b
cd
ef
hj
km
np
rs
tu
vw
xy
z
MM22, MM24
www.vishay.com Vishay Dale
Revision: 24-Feb-14 4Document Number: 36008
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
MOUNTING VARIATIONS in inches [millimeters]
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.
5 CONTACTS 7 CONTACTS
0.140 [3.56]
Typ.
0.562
[14.27]
0.093 [2.36]
Dia. Typ.
0.282
[7.16]
Ref.
0.047 [1.19]
Typ.
0.081 [2.06]
0.040
[1.02]
A
B
0.140
[3.56]
Typ.
0.081 [2.06]
0.093 [2.36]
Dia. Typ.
0.040
[1.02]
0.468
[11.89]
0.188
[4.78]
Ref.
0.047 [1.19]
Typ.
9 CONTACTS
0.140 [3.56]
Typ.
0.047 [1.19]
Typ.
0.093 [2.36]
Dia. Typ.
0.081 [2.06]
0.040
[1.02]
0.376
[9.55]
Ref.
0.656
[16.66]
A
B
A
B
0.047 [1.19]
Typ.
14 CONTACTS
0.124 [3.15]
Typ.
0.162 [4.11]
0.081
[2.06]
0.376
[9.55]
Ref.
0.093 [2.36]
Dia. Typ.
0.625
[15.88]
11 CONTACTS
0.047 [1.19]
Typ.
0.090 [2.29] Typ.
0.270 [6.86]
Ref.
0.656
[16.66]
0.376
[9.55]
Ref.
0.135
[3.43]
Typ.
0.093 [2.36]
Dia. Typ.
0.140 [3.56]
Typ.
18 CONTACTS
0.125 [3.17]
Typ.
0.162 [4.11]
0.532
[13.51]
0.282
[7.16]
Ref.
0.047 [1.19]
Typ.
0.081
[2.06]
0.093 [2.36]
Dia. Typ.
A
B
C
A
B
C
A
BC
D
50 CONTACTS44 CONTACTS
34 CONTACTS
0.093 [2.36]
Dia. Typ.
1.03
[26.16]
0.140 [3.56]
Typ.
0.270 [6.86]
Typ.
0.135
[3.43]
0.090
[2.29]
Typ.
0.752
[19.10]
Ref.
0.047 [1.19]
Typ.
A
BC
D
0.093 [2.36]
Dia. Typ.
1.41
[35.81]
0.140
[3.56]
Typ.
0.270 [6.86]
Ref.
0.135
[3.43]
Typ.
0.090
[2.29]
Typ.
1.13
[28.70]
Ref.
0.047 [1.19]
Typ.
A
BC
D
A
BC
D
0.093 [2.36]
Dia. Typ.
1.28
[32.51]
0.147 [3.73]
Typ.
0.270 [6.86]
Typ.
0.135
[3.43]
0.090
[2.29]
Typ.
0.987
[25.07]
Ref.
0.047 [1.19]
Typ.
MM22, MM24
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Revision: 24-Feb-14 5Document Number: 36008
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PANEL CUTOUT in inches [millimeters]
NUMBER OF
CONTACTS A B C NUMBER OF
CONTACTS ABC
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]
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]
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
C
B
0.093 [2.36]
0.050
[1.27]
R Typ.
“C50” Configuration
0.093
[2.36]
0.160
[4.06]
0.093 [2.36]
Dia. Typ.
0.360
[9.14]
Ref.
0.090
[2.29] Typ. 0.180
[4.57]
Typ.
0.155 [3.94]
Typ.
0.344
[8.74]
0.172
[4.37]
0.893
[22.68]
Ref.
0.047 [1.19]
Typ.
1.20
[30.48]
CEBDA
0.500
[12.70]
0.172
[4.37]
0.250
[6.35
0.060
[1.52] R
0.344
[8.74]
0.113
[2.87]
0.080
[2.03]
Typ.
1.20
[30.48]
1.43
[36.32]
0.155
[3.94]
0.047
[1.19]
Typ.
0.893
[22.68]
Ref.
0.093 [2.36]
R 2 Places
0.126 + 0.002 - 0.000
[3.20 + 0.051 - 0.000]
Dia. Typ. 0.090 [2.29]
Typ.
“C50” Configuration
1.20
[30.48]
0.344
[8.74]
0.500
[12.70]
0.172
[4.37]
0.250
[6.35]
0.093
[2.36]
1.08
[27.43]
0.093 [2.36]
Dia. Typ.
MM22, MM24
www.vishay.com Vishay Dale
Revision: 24-Feb-14 6Document Number: 36008
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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.
ORDERING INFORMATION
CONNECTOR HARDWARE
-
G
PLATING
026 (1)
HARDWARE
VARIATIONS
5
NUMBER OF
CONTACTS
D1
TERMINATION
R
(OPTIONAL)
22
CONTACT
SIZE
B
(OPTIONAL)
P
CONTACT
STYLE
MM
MODEL
C
CONTACTS
(Omit if no hardware desired)
026 = Slotted brass guides 0.078" [1.98 mm] diameter
026L = slotted brass guides 0.078" [1.98 mm] diameter
027 = Slotted cres guides 0.078" [1.98 mm] diameter
027L = slotted 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 (3-48 thread)
SL2L = Chassis mounted fixed screwlocks (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
long
Long
Long
long
Microminiature
(OPTIONAL)
Closed entry socket contacts
optional on 22 AWG 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
B = Beryllium copper
contacts optional on
solder cup socket
contacts only.
(Omit for standard
contacts)
5, 7, 9, 11, 14, 18, 20, 26, 29, 34, 44 or 50 (2)
P = Pin
S = Socket
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
R = Reversed guides
or screwlocks
(Omit for standard)
Legal Disclaimer Notice
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Disclaimer
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RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of
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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
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Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
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