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Surface Mount Fasteners

Revised 908

SURFACE MOUNT FASTENERS

PEM® ReelFast® surface mount nuts, spacers, panel fasteners and R'ANGLE® fasteners are mounted to printed circuit boards in the same manner as other surface mount components prior to the solder reflow process. The fasteners are provided on tape and reel compatible with existing SMT automated installation equipment. Nuts and spacers are available in threaded and unthreaded sizes. Benefits of ReelFast® SMT fasteners are: · Faster assembly · Reduced scrap · Reduced handling · Reduced risk of board damage that may occur when fasteners are improperly installed with off-line equipment · Reduced loose hardware

ReelFast® SMT fasteners are recommended for reflow soldering designs. Contact our Applications Engineering Department for wave soldering solutions.

©Copyright 2004 PennEngineering.

SMT-2

PennEngineering · www.pemnet.com

TYPE SMTSO ReelFast® SMT SPACERS/NUTS

Stencil Masking Examples

Look for the "two groove" trademark.

C

ØD Solder Pad

Plated through hole not required.

E

A

L

ØH

All dimensions are in inches.

Thread Size .086-56 (#2-56) .112-40 (#4-40) .138-32 (#6-32) .164-32 (#8-32) -- --

Thru Hole +.004 ­.003 -- -- -- -- .116 .143

Type SMTSO SMTSO SMTSO SMTSO SMTSO SMTSO

Thread or Thru Hole Code 256 440 632 832 116 143

Length Code "L" ±.005 (Length code in 32nds of an inch) .062 2 2 2 2 2 2 .125 4 4 4 4 4 4 .250 8 8 8 8 8 8 .375 12 12 12 12 12 12

Min. Sheet Thickness .060 .060 .060 .060 .060 .060

A Max. .060 .060 .060 .060 .060 .060

C Max. .142 .161 .208 .245 .161 .208

E ±.005 .219 .219 .281 .344 .219 .281

ØH Hole Size In Sheet +.003 ­.000 .147 .166 .213 .25 .166 .213

ØD Min. Solder Pad .244 .244 .306 .369 .244 .306

All dimensions are in millimeters.

UNIFIED

Thread Size x Pitch

METRIC

Thru Hole +0.10 ­0.08 -- -- -- -- -- 3.6 4.2

Type SMTSO SMTSO SMTSO SMTSO SMTSO SMTSO SMTSO

Thread or Thru Hole Code M2 M25 M3 M35 M4 3.6 4.2 2 2 2 2 2 2 2

Length Code "L" ±0.13 (Length code in millimeters) 3 3 3 3 3 3 3 4 4 4 4 4 4 4 6 6 6 6 6 6 6 8 8 8 8 8 8 8 10 10 10 10 10 10 10

Min. Sheet Thickness 1.53 1.53 1.53 1.53 1.53 1.53 1.53

A Max. 1.53 1.53 1.53 1.53 1.53 1.53 1.53

C Max. 3.6 4.09 4.09 5.28 6.22 5.28 6.22

E ±0.13 5.56 5.56 5.56 7.14 8.74 7.14 8.74

ØH Hole Size ØD In Sheet Min. Solder +0.08 Pad 3.73 4.22 4.22 5.41 6.35 5.41 6.35 6.2 6.2 6.2 7.77 9.37 7.77 9.37

M2 x 0.4 M2.5 x 0.45 M3 x 0.5 M3.5 x 0.6 M4 x 0.7 -- --

Number Of Parts Per Reel / Pitch (mm) For Each Size

Thread/Thru-Hole Size 256, 440, 632, 116, 143 832 M2, M25, M3, M35, 3.6 M4, 4.2 Length Code 2 1500 / 12 1100 / 16 1500 / 12 1100 / 16 3 -- -- 1000 / 12 800 / 16 4 1000 / 12 800 / 16 900 / 12 675 / 16 6 -- -- 650 / 12 500 / 16 8 650 / 12 500 / 16 375 / 16 375 / 16 10 -- -- 300 / 16 300 / 16 12 300 / 16 300 / 16 -- --

Part Number Designation SMTSO 440 2 ET

Type

Thread or Thru Hole Code

Length Code

Finish

Packaged on 13" recyclable reels. Tape width is 24mm. Supplied with Kapton ® patch for vacuum pick up. Reels conform to EIA-481. MATERIAL: Carbon Steel. STANDARD FINISH: ET - Electro Plated Bright Tin, ASTM B 545, Class A W/ Clear Preservative Coating. OPTIONAL FINISH: DT - Matte Electro-Tin ASTM B 545, Class A W/ Clear Preservative Coating, Annealed. THREADS: Internal, ANSI B1.1 2B ANSI/ASME B1.13M, 6H

PennEngineering · www.pemnet.com

SMT-3

PANEL FASTENER COMPONENTS AND ASSEMBLY DATA

RETAINER

Packaged on 13" recyclable reels of 465 pieces. Tape width is 24mm. Supplied with Kapton ® patch for vacuum pick up. Reels conform to EIA-481.

Stencil Masking Examples A R E

Part Number Designation For Retainer

ØD

SMTPR Solder Pad

Plated through hole not required.

6

-

1

ET

C

B

Type

Retainer Size

Shank Code

Finish

ØH

All dimensions are in inches. UNIFIED

Retainer Part Number SMTPR-6-1

A (Shank) Max. .060

Min. Sheet Thickness .060

B ±.003 .167

C Max. .249

E Nom. .375

R ±.005 .325

ØH Hole Size In Sheet +.003 ­.000 .250

ØD Min. Solder Pad .396

All dimensions are in millimeters. METRIC

Retainer Part Number SMTPR-6-1

A (Shank) Max. 1.53

Min. Sheet Thickness 1.53

B ±0.08 4.24

C Max. 6.33

E Nom. 9.53

R ±0.13 8.26

ØH Hole Size In Sheet +0.08 6.35

ØD Min. Solder Pad 10.06

RETAINER MATERIAL: Carbon Steel. RETAINER STANDARD FINISH: ET - Electro Plated Bright Tin ASTM B 545, Class A W/Preservative Coating.

SCREW

Packaged in bags.

RETAINER OPTIONAL FINISH: DT - Matte Electro-Tin ASTM B 545, Class A W/ Clear Preservative Coating, Annealed.

T L E

Available with six-lobe recess on special order.

Part Number Designation For Screw

Four dimples on head designate metric thread. C Metal Phillips Recess

PSHP -

632

-

0

L

001

Type

Thread Code

Length Code

(Lobed) (Standard Black)

Cap Style

Color Code

(See page 5 for color capabilities)

All dimensions are in inches.

All dimensions are in millimeters.

UNIFIED

PSHP PSHP

440 632

0 1 0 1

.440 .440

.542 .542

.510 .570 .510 .570

.663 .723 .663 .723

METRIC

Type

Thread Code

Screw Length Code

C ±.010

E ±.010

L ±.015

T Nom.

Driver Size #1 #2

Type PSHP PSHP

Thread Code M3 M3.5

Screw Length Code 0 1 0 1

C ±0.25 11.18 11.18

E ±0.25 13.77 13.77

L ±0.38 12.95 14.48 12.95 14.48

T Nom. 16.84 18.36 16.84 18.36

Driver Size #1 #2

CAP MATERIAL: ABS. Temperature limit is 200° F / 93° C. SCREW MATERIAL: Carbon Steel. SCREW FINISH: CN - Bright Nickel over Copper Flash.

THREADS: External, ANSI B1.1, 2A ANSI/ASME B1.13M, 6g.(1)

(1) As with all external plated threads, Class 2A/6g, the maximum major and pitch, after plating, may equal basic sizes and be gauged to Class 3A/6h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.

Retainer and screw are sold separately.

SMT-4

PennEngineering · www.pemnet.com

ASSEMBLY

· Simply snap screw into retainer to complete assembly. · Black ABS cap standard. · Optional molded-thru colors available.

When Assembled

Spring action of plastic "fingers" holds screw in retracted position.

Patented

PSHP

T2

T1

SMTPR PC Board P G

All dimensions are in inches.

Screw Part Number

UNIFIED

Thread Size .112-40 (#4-40) .138-32 (#6-32)

Type PSHP PSHP

Thread Code 440 632

Screw Length Code 0 1 0 1

Retainer Part Number SMTPR-6-1 SMTPR-6-1

G ± .025 .188 .248 .188 .248

P ± .025 .000 .026 .000 .026

T1 Nom. .478 .478

T2 Nom. .646 .646

Total Radial Float .015 .020

All dimensions are in millimeters.

Screw Part Number

METRIC

Thread Size x Pitch M3 x 0.5 M3.5 x 0.6

Type PSHP PSHP

Thread Code M3 M3.5

Screw Length Code 0 1 0 1

Retainer Part Number SMTPR-6-1 SMTPR-6-1

G ± 0.64 4.78 6.3 4.78 6.3

P ± 0.64 0 .66 0 .66

T1 Nom. 12.14 12.14

T2 Nom. 16.41 16.41

Total Radial Float .38 .51

COLOR CAPABILITIES FOR TYPE PSHP SCREW

Std. Black #001 Red #002 Orange #003 Yellow #004

The colors shown here (codes #002 thru #007) are non-stocked standards and available on special order. Since actual cap colors may vary slightly from those represented at the right, we recommend that you request samples for color verification. If you require a custom color or you need a "color matched" cap, please contact us.

Green #005 Non-flammable UL 94-V0 plastic caps are available on special order. Blue #006 Violet #007

PennEngineering · www.pemnet.com

SMT-5

SURFACE MOUNT R'ANGLE® FASTENER

· Strong re-usable threads at right angle to PC board.

Part Number Designation SMTRA 256 8 6 ET

G F J C T Grooves identify unified thread.

Type

Thread Code

Height Code

Length Finish Code

N P K Stencil Masking Examples D SP

B

L

Patented.

A

All dimensions are in inches.

Thread Size

UNIFIED

Type SMTRA SMTRA SMTRA SMTRA

Thread Code 256 440 632 832

Height Code 8 9 10 12

Length Code 6 6 8 9

Length L ±.005 .188 .188 .250 .281

Min. Hole Sheet Size ThickIn Sheet ness +.003 ­.000 .040 .040 .040 .040 .053 .053 .053 .053

A ±.006 .218 .250 .312 .375

B ±.006 .040 .050 .050 .050

C ±.006 .060 .065 .065 .075

D ±.006 .140 .160 .205 .250

Height F ±.006 .250 .281 .312 .375

G ±.006 .345 .390 .450 .535

J Nom. .020 .020 .020 .020

K Nom. .030 .030 .030 .030

N Max. .048 .048 .048 .048

P Max. .040 .040 .040 .040

SP T ±.003 Nom. .157 .188 .250 .312 .105 .125 .145 .195

.086-56 (#2-56) .112-40 (#4-40) .138-32 (#6-32) .164-32 (#8-32)

All dimensions are in millimeters.

Thread Size x Pitch

METRIC

Type SMTRA

Thread Height Length Length Code Code Code L ±0.13 M2 6 6 7 9 5 5 5 7 5 5 5 7

Min. Sheet Thickness 1 1 1 1

Hole Size In Sheet +0.08 1.35 1.35 1.35 1.35

A ±0.15 5.5 5.5 6.35 9.53

B ±0.15 1 1 1.25 1.25

C ±0.15 1.5 1.5 1.65 1.65

D ±0.15 3.5 3.5 4 6.35

Height F ±0.15 6 6 7 9

G ±0.15 8.4 8.4 9.75 13.1

J Nom. 0.5 0.5 0.5 0.5

K Nom. 0.75 0.75 0.75 0.75

N Max. 1.22 1.22 1.22 1.22

P Max. 1 1 1 1

SP T ±0.08 Nom. 4 4 4.75 7.9 2.65 2.65 3.2 4.8

M2 x 0.4

M2.5 x 0.45 SMTRA M25 M3 x 0.5 M4 x 0.7 SMTRA SMTRA M3 M4

UNIFIED

Thread Code 256 440 632 832 Thread Code M2 M25 M3 M4

Pad Width Pad Length PA PL Min. Min. .262 .294 .356 .419 .171 .171 .233 .264

Hole Spacing Hole Size SH In Sheet ±.002 +.003 ­.000 .157 .188 .250 .312 Hole Spacing SH ±0.05 4 4 4.75 7.9 .053 .053 .053 .053 Hole Size In Sheet +0.08 1.35 1.35 1.35 1.35

PA Solder Pad

Can be flush to edge. Plated through hole not required.

Part Number SMTRA256-8-6 SMTRA440-9-6

Parts Pitch Tape Width Per Reel (mm) (mm) 375 300 200 200 375 375 300 200 16 16 20 20 16 16 16 20 24 24 32 32 24 24 24 32

PL

SMTRA632-10-8 SMTRA832-12-9 SMTRAM2-6-5 SMTRAM25-6-5 SMTRAM3-7-5 SMTRAM4-9-7

METRIC

Pad Width Pad Length PA PL Min. Min. 6.62 6.62 7.47 10.65 4.57 4.57 4.57 6.57

SH

MATERIAL: Zinc Diecast.

STANDARD FINISH: ET - Electro Plated Bright Tin, ASTM B 545, Class A W/ Clear Preservative Coating. OPTIONAL FINISH: DT - Matte Electro-Tin ASTM B 545, Class A W/ Clear Preservative Coating, Annealed. THREADS: Internal, ANSI B1.1 2B ANSI/ASME B1.13M, 6H

SMT-6

PennEngineering · www.pemnet.com

INSTALLATION ­ NUTS AND SPACERS

Kapton® patch applied here for vacuum pick up.

Solder paste applied to pad on PCB.

Solder fastener in place using standard surface mount techniques.

INSTALLATION ­ PANEL FASTENER

Kapton® patch applied here for vacuum pick up.

Solder paste applied to pad on PCB.

Solder fastener in place using standard surface mount techniques.

Screw snapped in place.

INSTALLATION ­ R'ANGLE FASTENER

Flat top for vacuum pick up.

Solder paste applied to pad on PCB.

Solder fastener in place using standard surface mount techniques.

Undercut to accept solder fillet and permit flush to edge installation.

ReelFast® product performance is dependent upon application variables. We will be happy to provide samples for you to install. If required, we can also test your installed hardware and provide you with specific performance data.

PennEngineering · www.pemnet.com

SMT-7

ADDITIONAL REELFAST® SMT SOLUTIONS

Surface mount technology can be applied to other fastener designs. Contact our Applications Engineering department for more information.

RoHS compliance information can be found on our website.

Specifications subject to change without notice. Check our website for the most current version of this bulletin.

SMT-8

CAGE-46384

Information

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