SM20 Datasheet, PDF (1/5 Pages) Vishay Siliconix – Rack and Panel Connectors Subminiature Rectangular

SM20
Vishay Dale
Rack and Panel Connectors
Subminiature Rectangular
SMP20
SMS20
ELECTRICAL SPECIFICATIONS
Current Rating: 7.5 amps.
Breakdown Voltage:
At sea level: 2000 V RMS.
At 70,000 feet [21,336 meters]: 500 V RMS.
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.
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: .120" [3.05mm].
Contact Gauge: #20 AWG.
Minimum Creepage Path Between Contacts:
.080" [2.03mm].
Minimum Air Space Between Contacts: .050" [1.27mm].
DIMENSIONS in inches [millimeters]
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.
SMS
With Fixed Standard Guides
SMDS - DETAIL B
Dip Solder Contact Option
.190 [4.83]
Typ.
.470
[11.94]
.220
[5.59]
2-56 UNC-2A
Threads Typ.
.156 [3.96]
Typ.
.030
[.762]
Typ.
.187
[4.75]
Typ.
See
Detail B
SMP
With Fixed Standard Guides
SMDP - DETAIL C
Dip Solder Contact Option
.120
[3.05]
.530
[13.46]
.220
[5.59]
.141
[3.58]
Typ.
.187
[4.75]
Typ.
.141 [3.58]
Typ.
.040 [1.02]
Dia. Typ.
.046 [1.17]
Dia. Solder Cup
#20 AWG Typ.
See
Detail C
.040 ± .001
[1.02 ± .025]
Dia. Typ.
.030
[.762]
Typ.
SMS
With Fixed (SL) Screwlocks
SMP
SMS
With Turnable (SK) Screwlocks With Turnable (SK) Screwlocks
SMP
With Fixed (SL) Screwlocks
.520
[13.21]
.220
[5.59]
.110
[2.79]
2-56 UNC-2A
Thread is
standard
.220
[5.59]
.120
[3.05]
.920
[23.37]
.910
[23.11]
.220
[5.59]
.046 [1.17]
Wide x
.062 [1.57]
Deep Typ.
.110
[2.79]
2-56 UNC-2A
Thread is
standard
.530
[13.46]
.120
[3.05]
.220
[5.59]
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For technical questions, contact: [e-mail]
Document Number: 36010
Revision: 15-Feb-07