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Page 8 of 14

III. OTHER SPECIFIED TESTING

The following is a general description of certain tests that are performed on representative

SUNON fans. Nothing in this document is intended to suggest that these tests are

performed on every model of SUNON fan. Moreover, the descriptions that follow each

test are meant only to provide a general explanation of each test. If you would like a more

detailed explanation as to any test identified in this Section, SUNON can provide such an

explanation upon request.

1.

DROP PROOF TEST

Fans are packaged in a standard size shipping box and are dropped to the ground from

certain heights and angles depending on the weight of the particular box.

2.

HUMIDITY PROOF TEST

The fan is operated for 96 continuous hours in an environment with humidity of 90% to

95% RH at 60°C  2°C.

3.

VIBRATION PROOF TEST

Vibration with an amplitude 2mm and a frequency of 5-55-5hz is applied in all 3

directions (X,Y,Z), in cycles of 1 hour each, for a total vibration time of 3hours.

4.

THERMAL CYCLING TEST

The fan is operated in a testing chamber for 50 cycles. In each cycle, the temperature is

gradually increased from -10°C to 70°C for 90 minutes, and subsequently operated at

70°C for 120 minutes. The temperature is then gradually decreased from 70°C to -10°C

for 90 minutes, and subsequently operated at -10°C for 120 minutes.

5.

SHOCK PROOF TEST

100G of force is applied in the 3 directions (X,Y, and Z) for 2 milliseconds each.

6.

LIFE EXPECTANCY

The “Life Expectancy” of SUNON fans is determined in SUNON’s reliability test

laboratory by using temperature chambers. The “Life Expectancy” of this fan has not been

evaluated for use in combination with any end application. Therefore, the Life Expectancy

Test Reports (L10 and MTTF Report) that relate to this fan are only for reference.

2017.09.11

D.C.C.