HC-49SSMD datasheet(3/3 Pages) WINGS

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5. ENVIRONMENTAL SPECIFICATION

1) Temperature test

Temperature cycling test

Conditions:

Steps of cycle

1) At -55℃,30 minutes

2) At +25℃,10 - 15 minutes

3) At +85℃,30 minutes

4) At +25℃,10 - 15 minutes

Number of cycles

3 times

Results:

Frequency and wave form of tested products must

remain within specifications.

Low Temperature test

Conditions:

Temperature

-20℃±2℃

Length of test

96 hours

Results:

There should be no stain on surface of products.

Frequency and wave form of tested products must

remain within specifications.

2) Aging test

Conditions:

Temperature

+85℃±20℃

Length of test

96 hours

Results:

Deviation of frequency must be less than

±3ppm

3) Salt spray test

Conditions:

Temperature

+35℃±2℃

Length of test

48 hours

NaCI %

Results:

There should be no stain on surface of products.

4) Humidity test

Conditions:

Temperature

+40℃±2℃

Relative humidity

90 - 95%

Length of test

96 hours

Results:

a. Insulation resistance must be 500 MΩ/100 Vac. minimum

b. Resistance and wave form must remain within specifications.

CRYSTAL UNIT

HC-49/S SMD

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