FL- 222 Filter bandwidth 1.9 kHz piezo ceramics filter 455khz

Item

Measurement condition

Requirement

Random Drop

Filter shall be measured after 3 times random drops from the height of 30cm on concrete floor

No visible damage and it

meet Table 1

Vibration

Filter shall be measured after being applied vibration of amplitude of 1.5mm with 10-55Hz band of vibration frequency to each of 3 perpendicular directions for 2 hours

No damage and it meet

Table 1.

Solderability

Lead terminals are immersed in aide solder for 5 sec and then immersed in soldering bath of 230±5℃, for 3±0.5 sec.

At least 95% lead terminals shall be covered with solder.

７－4

(１)

Terminal strength

Pulling

After force of 1kg for 10 seconds is applied to each terminal in axial direction, Filter shall be measured.

No damage, no cut-off and it meet Table 1.

Bending

After lead terminals shall be fixed at 2mm from filter’s body, they shall be folded up to 90°from their axial directions and folded back to –90°.Then folded back to their axial direction, the speed of folding be each 3 seconds.

No damage, no cut-off and it meet Table 1.

Item

Measurement condition

Requirement

Humidity

After being placed in a chamber with 90-95%

R.H. at 40±2℃ for 100 hours and then being

placed in room temperature for 1 hour, filter shall be measured.

It shall meet Table 1.

Resistance to

Solder Heat

Lead terminals are immersed up to 1.5mm from filter’s body in soldering bath of 350±10℃, for 3±0.5 sec. And then filter shall be measured after being placed in room temperature for 1 hour.

It shall meet Table 1.

High

Temperature

After being placed in a chamber with 80±2℃,for 100 hours and then being placed in room temperature for 1 hour , filter shall be measured.

It shall meet Table1

Low

Temperature

After being placed in a chamber with -20±2℃,for 100 hours and then being placed in room temperature for 1 hour, filter shall be measured.

It shall meet Table 1

Heat Shock

After being kept at room temperature, filter shall be placed at temperature of –55 ℃ , for 30 minutes, then be placed at temperature. 85℃, for 30 minutes. After that returned to –55℃ again. Repeated above cycle for 5 times. After being kept in room temp. for 1 hour, filter shall be measured

It shall meet Table 1