HC-49/S SMD
4. MECHANI
CAL SPECIFICATION
CRYSTAL UNIT
1) Terminal Strength
* Lead pulling test
Conditions: Load
907.2 gram
Direction
To the downward
Duration of applied force
5 seconds
Results:
There should be no distortion in appearance.
*
Lead bending test
Conditions: Load
453.6 gram
Bending angle
90°to normal position
Rate of bending
3 seconds in each cycle
Number of bending
3
Results:
There should be no distortion in appearance.
2) Lead solderability test
Conditions: Dipping in solder(+230℃±5℃)for 5 seconds
Results:
More than 95% of surface being tested should be
coated uniformly with solder.
3) Vibration test
Conditions:
Results:
Frequency
10 – 55Hz
Amplitude
0.762mm
Sweep
1.0 minute
Duration
2 hours
Frequency and wave form of tested products must
Remain within specifications.
4) Drop test
Conditions:
Results:
Method of drop
Natural drop
Dropping floor
Hard wood board
Height
30cm
Number of drops
3 times
Frequency and wave form of tested products must
remain within specifications.
WINGS [ WING SHING COMPUTER COMPONENTS ]
