SM20
Vishay Dale
Rack and Panel Connectors Subminiature Rectangular
FEATURES
• Lightweight
• Polarized by guides or screwlocks
• Screwlocks lock connectors together to withstand vibration
and accidental disconnect
• Overall height kept to a minimum
• Floating contacts aid in alignment and in withstanding
vibration
• Contacts, precision machined and individually gauged,
provide high reliability
• Insertion and withdrawal forces kept low without increasing
contact resistance
• Contact plating provides protection against corrosion,
assures low contact resistance and ease of soldering
SMP20
SMS20
ELECTRICAL SPECIFICATIONS
Current Rating:
7.5 A
Breakdown Voltage:
At sea level: 2000 V
RMS
At 70 000 feet [21 336 meters]: 500 V
RMS
APPLICATIONS
For use wherever space is at a premium and a high quality
connector
is
required
in
avionics,
automation,
communications, controls, instrumentation, missiles,
computers and guidance systems.
PHYSICAL SPECIFICATIONS
Number of Contacts:
5, 7, 11, 14, 20, 26, 34, 42, 50, 75
Contact Spacing:
0.120" [3.05 mm]
Contact Gauge:
#20 AWG
Minimum Creepage Path Between Contacts:
0.080" [2.03 mm]
Minimum Air Space Between Contacts:
0.050" [1.27 mm]
MATERIAL SPECIFICATIONS
Contact Pin:
Brass, gold plated
Contact Socket:
Phosphor bronze, gold plated
(Beryllium copper available on request)
Guides:
Stainless steel, passivated
Screwlocks:
Stainless steel, passivated
Standard Body:
Glass-filled diallyl phthalate per MIL-M-14,
Model GDI-30F, green
DIMENSIONS
in inches [millimeters]
SMS
With Fixed Standard Guides
0.470
[11.94]
0.220
[5.59]
0.030
[0.762]
Typ.
SMDS - DETAIL B
Dip Solder Contact Option
SMP
With Fixed Standard Guides
0.530
[13.46]
0.220
[5.59]
0.046 [1.17]
Dia. Solder Cup
#20 AWG Typ.
See
Detail C
SMDP - DETAIL C
Dip Solder Contact Option
0.141
[3.58]
Typ.
0.190 [4.83]
Typ.
2-56 UNC-2A
Threads Typ.
0.156 [3.96]
Typ.
See
Detail B
0.187
[4.75]
Typ.
0.120
[3.05]
0.187
[4.75]
Typ.
0.030
[0.762]
Typ.
0.141 [3.58]
Typ.
0.040 [1.02]
Dia. Typ.
0.040 ± 0.001
[1.02 ± 0.025]
Dia. Typ.
SMS
With Fixed (SL) Screwlocks
0.520
[13.21]
0.220
[5.59]
0.110
[2.79]
2-56 UNC-2A
Thread is
standard
SMP
With Turnable (SK) Screwlocks
0.920
[23.37]
0.220
[5.59]
0.120
[3.05]
SMS
With Turnable (SK) Screwlocks
0.910
[23.11]
0.220
[5.59]
0.110
[2.79]
0.046 [1.17]
Wide x
0.062 [1.57]
Deep Typ.
2-56 UNC-2A
Thread is
standard
SMP
With Fixed (SL) Screwlocks
0.530
[13.46]
0.220
[5.59]
0.120
[3.05]
Document Number: 36010
Revision: 05-May-09
For technical questions contact:
connectors@vishay.com
www.vishay.com
16
SM20
Vishay Dale
Rack and Panel Connectors Subminiature Rectangular
DIMENSIONS
in inches [millimeters]
SMP
With Turnable
(SK030) Screwlocks
0.590
[14.99]
SMP
With Turnable
(SK035) Screwlocks
0.610
[15.49]
A
View A-A Typ.
SMS
With Turnable
(SK035) Screwlocks
0.595
[15.11]
0.220
[5.59]
0.110
[2.79]
SMP
With Turnable
(SK030) Screwlocks
0.590
[14.99]
0.220
[5.59]
0.120
[3.05]
0.046 [1.17]
Wide x
0.062 [1.57]
Deep Typ.
0.220
[5.59]
0.120
[3.05]
0.093 [2.36]
Hex Typ.
0.220
[5.59]
0.120
[3.05]
0.046 [1.17]
Wide x
0.062 [1.57]
Deep Typ.
A
0.156
[3.96]
Dia.
0.156 [3.96]
Dia.
2-56 UNC-2A
Thread is
standard
0.156
[3.96]
Dia.
TERMINAL VARIATIONS
in inches [millimeters]
DIP SOLDER PC BOARD MOUNTING PATTERNS
Male (SMP) Connector is shown - Female is opposite. Contact row and Mating Hole C to C Dimensions also applies to Solder Cup Connectors.
L
L
0.0625 [1.59]
Typ.
0.250
B
[6.35]
Ref.
0.093 [2.36]
Dia. Typ.
A
0.0625 [1.59]
Typ.
0.375
[9.53]
Ref.
0.054
[1.37]
Typ.
B
A
0.093 [2.36]
Dia. Typ.
0.625
[15.88]
0.0625 [1.59]
Typ.
0.375
[9.53]
Ref.
0.108
[2.74]
Typ.
C
B
A
0.093 [2.36]
Dia. Typ.
0.625
[15.88]
0.0625 [1.59]
Typ.
C
0.093 [2.36]
Dia. Typ.
B
A
0.531
[13.49]
0.500
[12.70]
Ref.
0.108
[2.74]
Typ.
0.750
[19.05]
0.125
[3.18]
0.216 [5.49] Typ.
Ref.
14 CONTACTS
0.093 [2.36]
Dia. Typ.
0.054 [1.37]
0.140 [3.56]
Typ.
Typ.
0.108 [2.74]
Ref.
5 CONTACTS
0.125 [3.18]
Typ.
0.108 [2.74]
Ref.
7 CONTACTS
0.125
[3.18]
0.216 [5.49] Typ.
Ref.
11 CONTACTS
0.0625 [1.59]
Typ.
C
B
A
0.093 [2.36]
Dia. Typ.
0.0625 [1.59]
Typ.
C
1.000
[25.40]
Ref.
0.093 [2.36]
Dia. Typ.
B
A
0.0625 [1.59]
Typ.
C B A
0.750
[19.05]
Ref.
0.108 [2.74]
Typ.
1.0
[25.40]
1.25
[31.75]
1.000
[25.40]
Typ.
1.312
[33.32]
0.216 [5.49]
Ref.
0.125 [3.18]
Typ.
0.108 [2.74]
Typ.
0.125 [3.18]
Typ.
0.216 [5.49]
Ref.
26 CONTACTS
0.093 [2.36]
Dia. Typ.
C
B
A
0.054 [1.37]
Typ.
0.156 [3.96]
Typ.
0.108 [2.74]
Typ.
0.324 [8.23]
Ref.
34 CONTACTS
0.093 [2.36]
Dia. Typ.
C B A
20 CONTACTS
0.0625 [1.59]
Typ.
C
B A
0.093 [2.36]
Dia. Typ.
0.0625 [1.59]
Typ.
0.220 [5.59]
0.110
[2.79]
1.250
[31.75]
Ref.
1.562
[39.67]
0.156
[3.96]
Typ.
0.108
[2.74]
0.324 [8.23] Typ.
Ref.
1.500
[38.10]
Ref.
1.812
[46.02]
0.156
[3.96]
Typ.
0.0625
[1.59]
Typ.
1.500
[38.10]
Ref.
1.812
[46.02]
0.054 [1.37]
Typ.
0.054 [1.37]
Typ.
0.108
[2.74]
Typ.
0.324 [8.23]
Ref.
50 CONTACTS
0.108
[2.74]
Typ.
0.156 [3.96]
Typ.
0.540 [13.72]
Ref.
42 CONTACTS
75 CONTACTS
www.vishay.com
17
For technical questions contact:
connectors@vishay.com
Document Number: 36010
Revision: 05-May-09
SM20
Rack and Panel Connectors Subminiature Rectangular
Vishay Dale
DIMENSIONS
in inches [millimeters]
NOTE:
The views below show the wiring side of a pin model connector (female is opposite). Socket hardware is assembled at “A” contact
end of a pin model connector.
0.230
[5.84]
0.090 [2.29]
R Typ.
A
A
C
D
E
B
A
B
B
C
E
H
D
F
C
E
H
L
J
M
F
K
0.230
[5.84]
0.340
[8.64]
0.170
[4.32]
0.340
[8.64]
0.340
[8.64]
0.170
[4.32]
A
C
B
D
E
H
J
L
P
T
W
M
R
U
S
V
X
F
K
N
0.170
[4.32]
A
B
E
J
C
F
K
N
0.780
0.531 [19.81]
[13.49]
0.625
[15.88]
D
0.870
[22.10]
0.625
[15.88] 0.870
[22.10]
D
H
L
P
0.750
[19.05]
1.0
[25.40]
1.0
[25.40]
1.25
[31.75]
M
R
5 CONTACTS
7 CONTACTS
11 CONTACTS
14 CONTACTS
20 CONTACTS
0.340
[8.64]
0.500
[12.70]
0.170
[4.32]
0.340
[8.64]
0.250
[6.35]
0.500
[12.70]
0.340
[8.64]
0.250
[6.35]
A
D
H
L
M
P
R
T
U
W
Z
c
X
a
B
E
J
C
F
K
N
S
V
Y
b
HH
d
MM
A
C
B
E
F
K
P
R
L
H
J
M
N
S
T
W
X
AA
BB
EE
FF
KK
LL
NN
D
A
E
K
B
F
L
R
V
Z
C
H
M
S
W
AA
BB
EE
KK
PP
FF
LL
RR
UU
VV
XX
D
J
N
T
X
1.25
[31.75]
1.50
[38.10]
1.312
[33.32]
1.56
[39.62]
P
U
Y
CC
U
V
Y
CC
Z
DD
JJ
1.562
[39.68]
1.82
[46.23]
DD
HH
JJ
MM
NN
SS
TT
WW
26 CONTACTS
34 CONTACTS
0.720
[18.29]
0.560
[14.22]
42 CONTACTS
0.500
[12.70]
0.250
[6.35]
A
E
K
P
U
Y
V
B
F
L
R
C
H
J
M
S
W
T
X
N
D
Female Screwlock Socket
or Guide Socket
0.156 [3.96]
Typ.
0.090
[2.29]
Typ.
0.340
[8.64]
0.220
[5.59]
A
H
P
W
c
B
C
K
S
Y
f
g
m
t
n
D
L
T
Z
J
R
X
d
k
E
M
U
a
h
p
F
N
V
b
i
AA BB
CC Z EE
FF
DD
KK
HH
LL
JJ
PP
MM
NN
RR
UU
SS
TT
VV
YY
WW
ZZ
XX
A
c
a
d
b
f
e
1.812
[46.02]
2.06
[52.32]
j
r
x
AD
AL
AT
AZ
BF
p
v
u AB w
z AA
AC
y AF
AJ
AE
AK
AH
AN
AR
AS
AP
AM
AX
AV
AY
AW
AU
BO
BB
BE
BA
BC
BH
BJ
s
1.812
[46.02]
2.06
[52.32]
Female Guide
Socket
TYPICAL END VIEW
34 THRU 50 CONTACTS
Male Screwlock Pin
or Guide Pin
0.090
[2.29]
Typ.
0.156 [3.96]
Typ.
Male Guide Pin
50 CONTACTS
75 CONTACTS
TYPICAL END VIEW
75 CONTACTS
Document Number: 36010
Revision: 05-May-09
For technical questions contact:
connectors@vishay.com
www.vishay.com
18
SM20
Vishay Dale
Rack and Panel Connectors Subminiature Rectangular
PANEL CUTOUT
in inches [millimeters]
A
D
0.312
[7.93]
NUMBER OF
CONTACTS
0.093 [2.36]
Dia. Typ.
A
0.230
[5.84]
0.230
[5.84]
0.340
[8.64]
0.340
[8.64]
0.340
[8.64]
0.340
[8.64]
0.500
[12.70]
0.500
[12.70]
0.500
[12.70]
0.720
[18.29]
B
0.531
[13.49]
0.625
[15.88]
0.625
[15.88]
0.750
[19.05]
1.0
[25.40]
1.25
[31.75]
1.312
[33.32]
1.562
[39.68]
1.812
[46.02]
1.812
[46.02]
C
0.410
[10.41]
0.500
[12.70]
0.530
[13.46]
0.620
[15.75]
0.910
[23.11]
1.16
[29.46]
1.16
[29.46]
1.41
[35.81]
1.66
[42.16]
1.66
[42.16]
D
-
-
-
FIGURE
5
7
A
D
11
0.093 [2.36]
Dia. Typ.
I
-
-
-
0.343
[8.71]
0.343
[8.71]
0.343
[8.71]
0.562
[14.28]
III
II
14
C
A
0.093
[2.36]
C
B
C
B
20
26
34
42
50
B
0.093
[2.36]
FIGURE I
FIGURE II
0.218
[5.54]
FIGURE III
75
ORDERING INFORMATION
C
CONTACTS
SM
MODEL
B
CONTACT
TYPE
S
CONTACT
STYLE
P = Pin
S = Socket
20
CONTACT
SIZE
#20 AWG
–
G
-
26
PLATING
NUMBER
OF
CONTACTS
5, 7, 11, 14, 20,
26, 34, 42, 50, 75
(OPTIONAL)
R = Reversed guides
or screwlocks
Omit for standard
R
(OPTIONAL)
027
(1)
HARDWARE
OPTIONS
Subminiature
(OPTIONAL)
Closed entry socket
contacts only. Omit
for standard contacts.
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
(OPTIONAL)
B = Beryllium copper, socket
contacts (Solder cup)
D = Dip solder contacts
EXAMPLES:
SMBS20-26SK035 = Female, 26
beryllium
copper socket contacts
with
socket head knobs on turnable screwlocks for #20 AWG
wiring.
SMP20-14SL3 = Male, 14 contact pins, fixed screwlocks
with
3-48 threads
for #20 AWG
wiring.
(Omit if no hardware desired)
027 = Slotted cres guides 0.090" [2.29 mm]
diameter
SK = Turnable screwlocks
with
2-56 threads
SK3 = Turnable screwlocks
with
3-48 threads
SL = Fixed screwlocks
with
2-56 threads
SL3 = Fixed screwlocks
with
3-48 threads
SK030 = Turnable screwlocks
with
short
slotted knobs
SK035 = Turnable screwlocks
with
socket
head knobs
SK3030 = Turnable screwlocks
with
short
slotted knobs
with
3-48 threads
SK3035 = Turnable screwlocks
with
socket head knobs
with
3-48 threads
Note
(1)
To order complete connector with hardware supplied unassembled, add suffix “UA” on end of hardware designation.
www.vishay.com
19
For technical questions contact:
connectors@vishay.com
Document Number: 36010
Revision: 05-May-09
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
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.
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 any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
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