Shurlock™ Tabs
Factory applied only
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The rounded and bifurcated tip of the Shur-Lock™ solderable tab has been
designed to easily snap into any 0.093 inch diameter PC Board
hole. Once through the hole, the tab provides a positive
resistance to backing or falling out of the hole. In
addition, the spring action between the tab and the
plated through hole prevents leaning or lift-off of the
heat sink prior to or during the soldering process. The
tip extension of the Shur-Lock™ tab has been designed to
protrude less than 0.060 inch beyond the back of a standard
.0625 inch PC board, which is below the normal lead trimming
allowance for assembled PCBs.
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Tab Ordering Code 28
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| Product Information |
| Material |
Spring Steel |
| Finish |
Tin plating over a copper flash |
| Pull-out Force* (after soldering) |
70 lbs/tab (311 N/tab) minimum |
| Recommended |
| PCB Hole Diameter |
0.092 - 0.096 inch
(2.34 - 2.44 mm) |
| PCB Thickness |
0.065 - 0.068 inch
(1.65 - 1.73 mm) |
| *Vertical force applied to the sink-tab joint.
Variations of the above specifications are possible. Contact
Aavid Thermalloy for additional details for use with
thicker PCB sizes, such as, .093 inch (2.36 mm) or other hole diameters.
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Solderable Mounting Tabs
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Heat sinks ordered with solderable mounting tabs have tin-plated spring steel tabs permanantly locked onto the heat sink to provide wave solderability. The solderable tabs are mounted
on the heat sink after anodizing, thus eliminating any special coating or handling. The result is a wave solderable heat sink with black anodized performance.
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Typical Installation
|
Figure A
|
Figure B
|
| Suffix |
Code |
Stand-off height |
"A" Dim |
"B" Dim |
Figure |
| MT |
53 |
5.21 (0.205) |
15.88 (0.625) |
4.83 (0.190) |
A |
| MT2 |
54 |
8.51 (0.335) |
19.18 (0.755) |
8.13 (0.320) |
A |
| MT3 |
55 |
5.21 (0.205) |
15.88 (0.625) |
4.83 (0.190) |
A |
| MT5 |
56 |
5.21 (0.205) |
15.88 (0.625) |
4.83 (0.190) |
B |
| MT6 |
57 |
2.92 (0.115) |
13.59 (0.535) |
2.54 (0.100) |
B |
|
| Ordering Information: |
Example 12 digit part:
 |
Example Thermalloy origin part:
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Wave-On-Mounts
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Solderable mounts can be factory installed to practically every board-mountable heat sink and flat sided extrusion.
The female threaded through holes permit preassembly to the semiconductor via machine screws. This allows the
heat sink/semiconductor package to be treated as one unit when fitted in PC board thru-holes for wave soldering.
| Material |
PCB Plated Thru-hole |
PCB Thickness |
| EA, EG |
.145 inch
(3.68 mm) |
.062 inch
(1.57 mm) |
| E, EK, EL, EM, ER |
.187 inch
(4.75 mm) |
.090 inch
(2.23 mm) |
| EH, EP |
.187 inch
(4.75 mm) |
.090 inch
(2.23 mm) |
|
|
| Code |
Model
Inches |
"A" Dim
Inches |
"B" Dim
Inches |
"C" Dim
Inches |
"D" Dim
Inches |
Threaded
through holes |
| 01 |
E |
0.170 |
0.100 |
0.100 |
0.38 |
#6-32 |
| 02 |
EA |
0.135 |
0.100 |
0.100 |
0.38 |
#4-40 |
| 03 |
EG |
0.135 |
0.100 |
0.045 |
0.038 |
#4-40 |
| 04 |
EH |
0.170 |
0.135 |
0.100 |
0.038 |
#6-32 |
| 05 |
EK |
0.170 |
0.100 |
0.45 |
0.038 |
#6-32 |
| 07 |
EM |
0.170 |
0.100 |
0.100 |
0.038 |
3.5MM |
| 08 |
EP |
0.170 |
0.135 |
0.100 |
0.038 |
3.5MM |
| 09 |
ER |
0.170 |
0.100 |
0.200 |
0.038 |
#6-32 |
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Solderable PinsFactory applied only
|
Vertically mounted, extruded heat sinks are converted to wave solderable with the addition of solderable roll pins. Roll pins are available with stand-off shoulders in differant heights for easier cleaning after wave soldering.
Dim. A = Stand-off shoulder size available in 1.27mm and 3.175mm |
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