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.
| Items |
 SMTSO-256-2ET ReelFast® Surface Mount Nuts and Spacers/Standoffs - Type SMTSO - Unified |
SMTSO-256-4ET ReelFast® Surface Mount Nuts and Spacers/Standoffs - Type SMTSO - Unified |
SMTSO-256-8ET ReelFast® Surface Mount Nuts and Spacers/Standoffs - Type SMTSO - Unified |
SMTSO-256-12ET ReelFast® Surface Mount Nuts and Spacers/Standoffs - Type SMTSO - Unified |
SMTSO-440-2ET ReelFast® Surface Mount Nuts and Spacers/Standoffs - Type SMTSO - Unified |
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| Thread Size | .086-56 (#2-56) | .086-56 (#2-56) | .086-56 (#2-56) | .086-56 (#2-56) | .112-40 (#4-40) | |||||
| Thru-Hole + .004-.003 | ||||||||||
| Thread Code | 256 | 256 | 256 | 256 | 440 | |||||
| Thru-Hole Code | ||||||||||
| Length Code | 2 | 4 | 8 | 12 | 2 | |||||
| L - Length ± .005 |
.062 in
 |
.125 in
|
.250 in
|
.375 in
|
.062 in
|
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| Min. Sheet Thickness | .060 in | |||||||||
| A Max. | .060 in | |||||||||
| C Max. | .142 in | .142 in | .142 in | .142 in | .161 in | |||||
| E ± .005 | .219 in | |||||||||
| øH - Hole Size in Sheet + .003 - .000 | .147 in | .147 in | .147 in | .147 in | .166 in | |||||
| øD - Min. Solder Pad | .244 in | |||||||||
| Parts per Reel | 1500 | 1000 | 650 | 300 | 1500 | |||||
| Pitch | 12 mm | 12 mm | 12 mm | 16 mm | 12 mm | |||||
| For Use in Sheet Hardness1 | P.C. Board | |||||||||
| Thread Specification | Internal, ASME B1.1, 2B | |||||||||
| Fastener Material | Carbon Steel | |||||||||
| Standard Finish | Electro-Plated Tin, ASTM B545, Class A with Clear Preservative Coating, Annealed | |||||||||
| Optional Finish | ||||||||||
| CAD Supplier | PennEngineering® (PEM®) | |||||||||
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