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2 thermal solution performance characteristics, 0 reliability guidelines, Table 8. reliability requirements – Intel WiFi Link 5100 User Manual

Page 30: Thermal solution performance characteristics, Reliability guidelines, Reliability requirements

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Intel

®

5100 MCH Chipset

Intel

®

5100 Memory Controller Hub Chipset for Communications, Embedded, and Storage Applications

TDG

July 2008

30

Order Number: 318676-003US

6.2.2

Thermal Solution Performance Characteristics

Figure 22

shows the performance of the CompactPCI* reference heatsink. This figure

shows the thermal performance of the heatsink versus the airflow approach velocity

provided.

7.0

Reliability Guidelines

Each motherboard, heatsink, and attach combination may vary the mechanical loading

of the component. The user should carefully evaluate the reliability of the completed

assembly prior to use in high volume. Some general recommendations are shown in

Table 8

.

Figure 22.

CompactPCI* Reference Heatsink Thermal Performance

0

0.5

1

1.5

2

2.5

3

3.5

4

0

100

200

300

400

500

600

700

800

900

1000 1100 1200

Airflow Approach Velocity (LFM)

Case-

T

o

-A

m

b

ie

n

t T

h

erm

a

l C

h

aract

eri

z

at

io

n

P

a

ra

m

e

te

r

Ψ

ca

(

o

C/

W

)

CompactPCI* Heatsink

Table 8.

Reliability Requirements

Test

1

Requirement

Pass/Fail Criteria

2

Mechanical Shock

50 g, board level, 11 ms, three shocks/axis

Visual Check and Electrical Functional Test

Random Vibration

7.3 g, board level, 45 minutes/axis, 50 Hz to 2000 Hz

Visual Check and Electrical Functional Test

Temperature Life

85 °C, 2000 hours total, checkpoints at 168, 500, 1000,

and 2000 hours

Visual Check

Thermal Cycling

-5 °C to +70 °C, 500 cycles

Visual Check

Humidity

85% relative humidity, 55 °C, 1000 hours

Visual Check

Notes:

1.

The above tests should be performed on a sample size of at least 12 assemblies from three lots of material.

2.

Additional pass/fail criteria may be added at the discretion of the user.