MM22, MM24
Vishay Dale
Rack and Panel Connectors Military, MIL-C-28748/7/8 Qualified and
Commercial Microminiature Rectangular with Optional Hoods
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 V
RMS
At 70 000 feet: 500 V
RMS
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
MMP
With Solder Cup Contacts
MMDS
With Dip Solder Contacts
0.030
[0.762]
0.110 [2.79]
Typ.
0.034 [0.864] Dia.
Solder Cup
B
D
0.140
[3.56]
C
MMDP
With Dip Solder Contacts
0.140
[3.56]
D
CONTACT GAUGE
22 AWG
24 AWG
B DIAMETER
0.030 ± 0.001
[0.762 ± 0.025]
0.025 ± 0.001
[0.635 ± 0.025]
CONTACT GAUGE
22 AWG
24 AWG
C DIP TAIL LENGTH
0.160 or 0.350
[4.06 or 8.89] nom.
0.160 or 0.350
[4.06 or 8.89] nom.
D DIAMETER
0.025
[0.635]
0.025
[0.635]
www.vishay.com
4
For technical questions contact:
connectors@vishay.com
Document Number: 36008
Revision: 15-Feb-07
MM22, MM24
Rack and Panel Connectors Military, MIL-C-28748/7/8
Qualified and Commercial Microminiature Rectangular
with Optional Hoods
DIMENSIONS
in inches [millimeters]
HARDWARE
TYPE
E DIAMETER
F DIAMETER
Vishay Dale
MMS
With Fixed (026, 027) Guides
0.520
[13.21]
0.230 [5.84]
2-56 UNC-2A
Thread Typ.
0.110 [2.79]
0.034 [0.864] Dia.
Solder Cup
#22 or #24
AWG Max.
0.140 [3.56]
0.030 [0.762]
Wide
x
0.040 [1.02]
Deep
Slot Typ.
MMP
With Fixed (026, 027) Guides
0.490
[12.45]
0.230 [5.84]
“A”
End of
Connector
0.140
[3.56]
026
0.140
[3.56]
0.078
[1.98]
0.078
[1.98]
0.078
[1.98]
0.078
[1.98]
0.125
[3.17]
0.125
[3.17]
0.125
[3.17]
0.125
[3.17]
026L
027
F Dia.
E Dia.
027L
MMS
With Fixed (026L, 027L)
Guides
0.230
[5.84]
0.620
[15.75]
0.140
[3.56]
0.040
[1.02]
Typ.
MMP
With Fixed (026L, 027L)
Guides
“A”
End of
Connector
0.590
[14.99]
0.250
[6.35]
Short Turnable
Screwlocks (SK030)
0.540
[13.72]
0.160 [4.06]
0.030 [0.762]
Wide
x
0.040 [1.02]
Deep
Typ.
0.140
[3.56]
Turnable
Screwlocks (SK)
0.950
[24.13]
0.034
[0.864]
Dia.
Solder Cup
#22 or #24
AWG Max.
0.046 [1.17] Wide x
0.062 [1.57] Deep
Typ.
0.187
[4.75]
Dia.
0.110 [2.79]
0.110
[2.79]
0.500
[12.70]
0.910
[23.11]
0.030
[0.762]
Typ.
0.124
[3.15]
Dia.
2-56 UNC-2A
Typ.
0.110 [2.79]
Fixed
Screwlocks (SL)
0.490
[12.45]
Fixed
Screwlocks (SLL)
0.620
[15.75]
0.230
[5.84]
0.140
[3.56]
Fixed Screwlocks
And Nylon Retaining Nut
And Fiber Washer (NSL)
0.590
[14.99]
Short Turnable
Screwlocks (SK2035)
0.240 [6.10]
Typ.
0.093
[2.36]
Hex Socket
0.090 [2.29]
Deep Typ.
0.610
[15.49]
0.140
[3.56]
0.034 [0.864]
Dia.
Solder Cup
#22 or #24
AWG Max.
0.140
[3.56]
0.520
[13.21]
0.110
[2.79]
0.590
[14.99]
0.250
[6.35]
0.180
[4.57]
Dia.
0.620
[15.75]
0.580
[14.73]
0.110
[2.79]
Document Number: 36008
Revision: 15-Feb-07
For technical questions contact:
connectors@vishay.com
www.vishay.com
5
MM22, MM24
Vishay Dale
Rack and Panel Connectors Military, MIL-C-28748/7/8
Qualified and Commercial Microminiature Rectangular
with Optional Hoods
MATES WITH HARDWARE MODEL
026, 026L
027, 027L
SL, NSL or SLL
SL, NSL or SLL
SL2, NSL2 or SL2L
SL2, NSL2 or SL2L
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.
HARDWARE MATING CHART
HARDWARE MODEL
026
027
SK
SK030
SK2
SK2030
SK2035
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]
0.105 [2.67]
A
B
D
F
J
0.210 ± 0.020
[5.33 ± 0.508]
0.030
[0.762]
R Typ.
(5 thru 9)
0.270
[6.86]
0.135
[3.43]
C
B
E
J
F
K
M
0.270
[6.86]
0.135
[3.43]
A
D
B
E
C
F
K
N
R
0.380
[9.65]
0.105 [2.67]
0.105 [2.67]
A
B
D
F
0.190
[4.83]
A
C
E
B
D
C
0.468
[11.89] 0.690
[17.53]
E
H
0.562
[14.27] 0.790
[20.07]
C
E
H
K
0.060
[1.52]
0.656
R Typ.
A
D
[16.66]
(11 thru 44)
H
0.880
L
[22.35]
A
B
D
J
N
T
F
L
R
V
0.780
0.532 [19.81]
[13.51]
H
J
L
M
P
0.625
[15.88]
0.880
[22.35]
C
H
M
S
E
K
P
U
0.656
[16.66]
0.870
[22.10]
5 CONTACTS
7 CONTACTS
9 CONTACTS
11 CONTACTS
14 CONTACTS
18 CONTACTS
0.270
[6.86]
0.135
[3.43]
A
D
H
L
P
T
W
B
E
J
M
R
U
C
F
K
N
S
V
X
0.270
[6.86]
0.135
[3.43]
0.270
[6.86]
0.135
[3.43]
A
C
B
E
J
M
R
U
X
a
d
F
K
N
S
V
Y
b
e
h
0.380
[9.65]
0.380
[9.65]
0.190
[4.83]
A
C
E
H
M
D
J
K
P
U
Y
CC
HH
MM
PP
UU
YY
SS
N
T
X
BB
FF
LL
RR
VV
V
Z
DD
JJ
NN
TT
XX
B
F
L
R
0.380
[9.65]
0.190
[4.83]
C
M
S
W
0.190
[4.83]
A
E
H
K
P
U
Y
b
c
h
k
r
v
z
n
t
x
BB
f
m
s
w
AA
EE
D
J
N
T
X
B
F
L
R
V
Z
d
j
p
u
y
CC
HH
A
D
H
B
E
J
C
F
K
N
S
V
Y
b
d
D
H
L
P
T
W
Z
c
f
A
C
H
D
E
J
K
M
S
W
P
T
U
Y
CC
HH
X
BB
FF
LL
MM
N
B
F
L
R
V
Z
DD
JJ
NN
0.814
[20.68]
1.06
[26.92]
L
M
P
R
T
U
W
X
Z
a
c
1.0
[25.40]
1.25
[31.75]
S
1.09
[27.69]
1.34
[34.04]
1.03
[26.16]
1.25
[31.75]
W
AA
EE
KK
1.28
[32.51]
1.50
[38.10]
a
e
1.41
[35.81]
1.62
[41.15]
AA
EE
KK
WW
DD
FF
ZZ
20 CONTACTS
26 CONTACTS
29 CONTACTS
34 CONTACTS
44 CONTACTS
50 CONTACTS
www.vishay.com
6
For technical questions contact:
connectors@vishay.com
Document Number: 36008
Revision: 15-Feb-07
MM22, MM24
Rack and Panel Connectors Military, MIL-C-28748/7/8
Qualified and Commercial Microminiature Rectangular
with Optional Hoods
MOUNTING VARIATIONS
in inches [millimeters]
0.093 [2.36]
Dia. Typ.
A
B
Vishay Dale
0.047 [1.19]
Typ.
0.188
[4.78]
Ref.
0.040
[1.02]
0.081 [2.06]
0.047 [1.19]
Typ.
A
0.093 [2.36]
Dia. Typ.
B
0.047 [1.19]
Typ.
A
0.093 [2.36]
Dia. Typ.
B
0.468
[11.89]
0.140
[3.56]
Typ.
0.282
[7.16]
Ref.
0.040
[1.02]
0.081 [2.06]
0.562
[14.27]
0.376
[9.55]
Ref.
0.656
[16.66]
0.140 [3.56]
Typ.
5 CONTACTS
7 CONTACTS
0.040
0.140 [3.56]
[1.02]
Typ.
0.081 [2.06]
9 CONTACTS
DIP SOLDER PC BOARD
MOUNTING PATTERNS
Male (MMP) connector
shown - female is opposite.
Contact, contact row and
mating hole C
L
to C
L
Dimensions also applies to
solder cup style connectors.
0.047 [1.19]
Typ.
0.282
[7.16]
Ref.
0.081
[2.06]
C
B
A
0.093 [2.36]
Dia. Typ.
0.532
[13.51]
0.125 [3.17]
Typ.
0.047 [1.19]
Typ.
C
A
B
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
B
D
A
0.093 [2.36]
Dia. Typ.
C
0.376
[9.55]
Ref.
0.081
[2.06]
0.625
[15.88]
0.124 [3.15]
Typ.
0.162 [4.11]
14 CONTACTS
0.376
[9.55]
Ref.
0.090 [2.29] Typ.
0.135
[3.43]
Typ.
0.656
[16.66]
0.140 [3.56]
Typ.
0.162 [4.11]
11 CONTACTS
0.270 [6.86]
Ref.
18 CONTACTS
0.047 [1.19]
Typ.
C
B
A
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
C
B
A
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
0.093 [2.36]
Dia. Typ.
C
A
B
0.564
[14.33]
Ref.
0.081
[2.06]
0.162 [4.11]
0.814
[20.68]
0.752
[19.10]
Ref.
1.0
[25.40]
0.846
[21.49]
Ref.
1.09
[27.69]
0.125
[3.17]
Typ.
0.081
[2.06]
0.162 [4.11]
26 CONTACTS
0.124
[3.15]
Typ.
0.081
[2.06]
0.162 [4.11]
29 CONTACTS
0.124
[3.15]
Typ.
20 CONTACTS
0.047 [1.19]
Typ.
B
D
A
C
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
B
D
A
C
0.093 [2.36]
Dia. Typ.
0.047 [1.19]
Typ.
B
D
A
C
0.093 [2.36]
Dia. Typ.
0.752
[19.10]
Ref.
1.03
[26.16]
0.987
[25.07]
Ref.
1.28
[32.51]
1.13
[28.70]
Ref.
1.41
[35.81]
0.090
[2.29]
Typ.
0.270 [6.86]
Typ.
0.140 [3.56]
Typ.
0.135
[3.43]
0.090
[2.29]
Typ.
0.147 [3.73]
0.135 Typ.
[3.43]
0.270 [6.86]
Typ.
0.090
[2.29]
Typ.
0.135
[3.43]
Typ.
0.270 [6.86]
Ref.
50 CONTACTS
0.140
[3.56]
Typ.
34 CONTACTS
44 CONTACTS
Document Number: 36008
Revision: 15-Feb-07
For technical questions contact:
connectors@vishay.com
www.vishay.com
7
MM22, MM24
Vishay Dale
Rack and Panel Connectors Military, MIL-C-28748/7/8
Qualified and Commercial Microminiature Rectangular
with Optional Hoods
NUMBER OF
CONTACTS
A
PANEL CUTOUT
in inches [millimeters]
A
0.210
[5.33]
0.210
[5.33]
0.210
[5.33]
0.270
[6.86]
0.270
[6.86]
0.380
[9.65]
B
0.468
[11.89]
0.562
[14.27]
0.656
[16.66]
0.532
[13.51]
0.625
[15.88]
0.656
[16.66]
C
0.340
[8.64]
0.440
[11.18]
0.530
[13.46]
0.410
[10.41]
0.500
[12.70]
0.530
[13.46]
NUMBER OF
CONTACTS
20
26
29
34
44
50
A
0.270
[6.86]
0.270
[6.86]
0.270
[6.86]
0.380
[9.65]
0.380
[9.65]
0.380
[9.65]
B
0.814
[20.68]
1.0
[25.40]
1.09
[27.69]
1.03
[26.16]
1.28
[32.51]
1.41
[35.81]
C
0.690
[17.53]
0.870
[22.10]
0.970
[24.64]
0.910
[23.11]
1.16
[29.46]
1.28
[32.51]
5
7
9
11
0.093 [2.36]
B C
0.050
[1.27]
R Typ.
14
18
DIMENSIONS
in inches [millimeters]
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.
0.160
[4.06]
0.093
[2.36]
0.172
[4.37]
0.172
[4.37]
0.250
[6.35
0.060
[1.52] R
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.
0.500
[12.70]
0.344
[8.74]
0.093 [2.36]
R 2 Places
0.113
[2.87]
C
E
B
D
A
PANEL CUTOUT
in inches [millimeters]
0.500
[12.70]
0.344
[8.74]
0.093 [2.36]
Dia. Typ.
0.172
[4.37]
0.250
[6.35]
0.893
[22.68]
Ref.
1.20
[30.48]
0.344
[8.74]
0.093 [2.36]
Dia. Typ.
1.08
[27.43]
1.20
[30.48]
1.20
[30.48]
1.43
0.047 [1.19]
Typ.
[36.32]
0.090
[2.29] Typ.
0.360
[9.14]
Ref.
0.155 [3.94]
Typ.
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 C
L
to C
L
dimensions also applies to solder cup style connectors.
www.vishay.com
8
For technical questions contact:
connectors@vishay.com
Document Number: 36008
Revision: 15-Feb-07
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