|
|
Testing Item
|
Condition
of Test
|
Performance
Requirements
|
|
1
|
Resistance to impact
|
Drop the filter randomly onto a concrete
floor the height of 30cm 3 times.
|
No visible damage and the measured values
shall meet Table 1.
|
|
2
|
Resistance to vibration
|
Subject the filter to the vibration for 1
hour each in the X. Y. and Z. Axes with the amplitude of 1.5mm,the frequency
of 10-55Hz.
|
No visible damage and the measured values
shall meet Table 1.
|
|
3
|
Firmness of lead
|
Applied to
vertical weight 1Kg along with the direction of lead without any shock for
5-10 sec.
|
No evidence of harm should show.
|
|
4
|
Solder ability
|
Dip the filter terminals no closer than
1.5mm into the solder bath at 230±5℃ for 5±1 sec.
|
More than 95% of the terminal surface of the
filter shall be covered with fresh solder.
|
|
5
|
Resistance to soldering heat
|
Dip the filter terminals no closer than 1.5mm
into the solder bath at 350±10℃ for 3 sec. Then release it into the
room condition for 24 hours.
|
The measured values shall meet Table 1.
|
|
6
|
Resistance to moisture
|
Keep the filter at RH90%～95% and 40±2℃ for 100 hours.
Then release the filter into the room condition for 24 hours.
|
The measured values shall meet Table 1.
|
|
7
|
High temperature storage
|
Subject the filter to 85±2℃ for 100
hours. Then release the filter into the room condition for 24 hours.
|
The measured values shall meet Table 1.
|
|
8
|
Low temperature storage
|
Subject the filter to –55±2℃ for 100
hours. Then release the filter into the room condition for 24 hours.
|
The measured values shall meet Table 1.
|
|
9
|
Temperature cycling
|
Subject the filter to a low temperature of –55℃
for 30 min. Followed by a high temperature of 85℃ for 30 min. Cycling
shall be repeated 5 times with a transfer time 15min.at the room temperature.
Then release the filter into the room condition for 24 hours.
|
The measured values shall meet Table 1.
|
