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PEM® Brand Fasteners for Metal Sheets and Panels
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Fasteners for Mounting into Printed Circuit Boards
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Nuts and Spacers/Standoffs, Surface Mount – Types SMTSO, SMTSOB, SMTSS™, SMTSK™, SMTBSO™
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ReelFast® Brass Surface Mount Nuts and Spacers/Standoffs - Type SMTSOB – Metric
>
Part # SMTSOB-4.2-4ET
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Part # SMTSOB-4.2-4ET, ReelFast® Brass Surface Mount Nuts and Spacers/Standoffs - Type SMTSOB – Metric
Type SMTSOB™ - ReelFast® brass fasteners are ideal for applications which demand superior electrical/mechanical attachment points.
Packaged on 330 mm recyclable reels. Tape width is 24 mm. Supplied with polyimide patch for vacuum pick up. Reels conform to EIA-481.
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Specifications
Thru-Hole + 0.10-0.08
4.2
mm
Thru-Hole Code
4.2
Length Code
4
L - Length ± 0.13
4
mm
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Min. Sheet Thickness
1.53
mm
A Max.
1.53
mm
C Max.
6.22
mm
E ± 0.13
8.74
mm
øH - Hole Size in Sheet + 0.08
6.35
mm
øD - Min. Solder Pad
9.37
mm
Parts per Reel
675
Pitch
16
mm
For Use In
P.C. Board
Thread Specification
Internal, ASME B1.13M, 6H
Fastener Material
Brass
Standard Finish
1
Electro-Plated Tin, ASTM B 545, Class A with Clear Preservative Coating, annealed
CAD Supplier
PennEngineering® (PEM®)
1
The tin deposit on type SMTSOB meets the requirements of ASTM B545, Class A and although the copper and nickel barrier layers used under the tin do not strictly comply with ASTM B545 thickness requirements they have proven effective at preventing zinc migration and providing the specified solderable shelf life.
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