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Type SMTSO - Metric
PennEngineering
All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Fasteners for Mounting into Printed Circuit Boards > Nuts and Spacers/Standoffs, Surface Mount – Types SMTSO, SMTSOB, SMTSS™, SMTSK™, SMTBSO™ > ReelFast® Surface Mount Nuts and Spacers/Standoffs -
Type SMTSO - Metric
> Part # SMTSO-M25-4ET
 
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Part # SMTSO-M25-4ET, ReelFast® Surface Mount Nuts and Spacers/Standoffs -
Type SMTSO - Metric



Type SMTSO - ReelFast® surface mount nuts and standoffs are available threaded and unthreaded.

ReelFast® surface mount fasteners mount on PC boards in the same manner and at the same time as other surface mount components prior to the automated reflow solder process. The fasteners simply become another board component. This alleviates concerns about potential damage to PC boards due to improper secondary installation operations. The fasteners are provided on tape and reel compatible with existing SMT automated installation equipment. The benefits of using ReelFast® SMT fasteners are: faster assembly; reduced scrap; reduced handling; and reduced risk of board damage.

Packaged on 330 mm recyclable reels. Tape width is 24 mm. Supplied with polyimide patch for vacuum pick up. Reels conform to EIA-481.






 Specifications   

Thread Size x Pitch

M2.5 x 0.45

Thread Code

M25

Length Code

4

L - Length ± 0.13

View
4 mm

Min. Sheet Thickness

1.53 mm

A Max.

1.53 mm

C Max.

4.09 mm

E ± 0.13

5.56 mm

øH - Hole Size in Sheet + 0.08

4.22 mm

øD - Min. Solder Pad

6.2 mm

Parts per Reel

900

Pitch

12 mm

For Use in Sheet Hardness1

P.C. Board

Thread Specification

Internal, ASME B1.13M, 6H

Fastener Material

Carbon Steel

Standard Finish

Electro-Plated Tin, ASTM B545, Class A with Clear Preservative Coating, Annealed

CAD Supplier

PennEngineering® (PEM®)
1 For use in P.C. Board



 DOWNLOADS 

PEM Bulletin K