SW38-2G datasheet(91/116 Pages) AAVID

91 / 116 page

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www.aavidthermalloy.com

3.56

(0.140)

1.27

(0.050)

6.35

(0.250)

0.76

(0.030)

4.37

(0.172)

4.06

(0.160)

1.57

(0.062)

0.51

(0.020)

1.02

(0.040)

2.79

(0.110)

9.53

(0.375)

6.10

(0.240)

6.10

(0.240)

Tab ordering code 31

Tab ordering code 32

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.

• 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

1.58

(0.062)

2.67

(0.105)

6.35

(0.250)

10.41

(0.410)

6.35

(0.250)

0.76

(0.030)

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.

Material

Spring steel

Finish

Tin plating over a copper flash

Pull-out force*

70 lbs/tab minimum

Recommended

PCB hole diameter

0.092” – 0.096”

PCB thickness

0.065” – 0.068”

PRODUCT INFORMATION

FEATURES

Shur-Lock

TM Tabs

Tab ordering code 28

574802B0 _ _ 00G

Ordering code

ORDERING INFORMATION

example 12 digit part

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.

574802B0 _ _ 00G

Ordering code

ORDERING INFORMATION

example 12 digit part

Solderable Staked on Tabs

Factory applied only

SW38-2G Datenblatt(PDF) 91 Page - Aavid, Thermal Division of Boyd Corporation

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