7022BG Datasheet, PDF (91/116 Pages) Aavid, Thermal Division of Boyd Corporation – Channel style heat sink with folded back fins

TSMhur-Lock^TM Tabs
Aavid’s Shur-Lock™ self locking stand-off tab (U.S. Patent
#5,437,561) positively secures any heat sink to the printed circuit
board. This Shur-Lock™ tab exhibits many unique design features.
The rounded and bifurcated tip of the Shur-Lock™ solderable tab
has been designed to easily snap into any 0.093” diameter 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” beyond the back of a standard 0.0625”
PC board, which is below the normal lead trimming allowance
for assembled PCBs.
Shur-Lock’s™ stand-off design facilitates the cleaning of assem-
bled PCBs and permits electrical traces to be routed under the
heat sink. The wide base supports of the tab further improve
the stability of the heat sink assembly.
ORDERING INFORMATION
example 12 digit part 574802B0 _ _ 00G
PRODUCT INFORMATION
Ordering code
Material
Spring steel
Finish
Tin plating over a copper flash
Pull-out force*
70 lbs/tab minimum
Recommended
PCB hole diameter
PCB thickness
0.092” – 0.096”
0.065” – 0.068”
Variations of the above specifications are possible. Contact Aavid Thermalloy for
additional details for use with thicker PCB sizes, such as 0.093” or other hole diameters.
*Vertical force applied to the sink-tab joint.
TSMolderable Staked on Tabs
FEATURES
• Positive PCB engagement
• Integrated PCB stand-off
• Quick “snap-in” assembly design
• Reduces installed assembly cost
• Designed for rugged shock
and vibration environments
• Can be installed on a variety of stamped
and extruded board level heat sinks
Factory applied only
Tab ordering code 28
1.58
(0.062)
6.35
(0.250)
6.35
(0.250)
0.76
(0.030)
2.67
(0.105)
10.41
(0.410)
Aavid solderable tabs stake onto heat sinks for solder mounting into the
PC board. The tabs are available in a variety of lengths, widths and thicknesses.
Tabs are factory applied for both vertical and horizontal mountings including:
step tabs, which keep the heat sink elevated above the board, and tabs with a
triangular base for extra stability.
Many of Aavid’s tabs are customized. Below are examples of standard tabs.
Please consult Aavid’s customer service department for information about
other tab options.
ORDERING INFORMATION
example 12 digit part 574802B0 _ _ 00G
Ordering code
Tab ordering code 31
3.56
(0.140)
6.35
(0.250)
1.27
(0.050)
0.76
(0.030)
4.37
(0.172)
4.06
(0.160)
Tab ordering code 32
6.10
(0.240)
1.57
(0.062)
6.10
(0.240)
9.53
(0.375)
0.51
(0.020) ^1.02
(0.040)
2.79
(0.110)
Tabs
www.aavidthermalloy.com
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