SAW FILTER

HDF135-8

F16

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Page 4 of 5

4.TEST

CIRCUIT

5. ENVIRONMENTAL CHARACTERISTICS

5-1 High temperature exposure

Subject the device to +85℃ for 16 hours. Then release the filter into the room conditions

for 24 hours prior to the measurement. It shall fulfill the specifications in 2.2.

5-2 Low temperature exposure

Subject the device to -40℃ for 16 hours. Then release the device into the room conditions

for 24 hours prior to the measurement. It shall fulfill the specifications in 2.2.

5-3 Temperature cycling

Subject the device to a low temperature of -40℃for 30 minutes. Following by a high

temperature of +85℃ for 30 Minutes. Then release the device into the room conditions

for 24 hours prior to the measurement. It shall meet the specifications in 2.2.

5-4 Resistance to solder heat

Dip the device terminals no closer than 1.5mm into the solder bath at 260℃ ±10℃ for

10±1 sec. Then release the device into the room conditions for 4 hours. The device shall

meet the specifications in 2.2.

5-5 Solderability

Subject the device terminals into the solder bath at 245℃ ±5℃ for 5s, More than 95%

area of the terminals must be covered with new solder. It shall meet the specifications in

2.2.

5-6 Mechanical shock

Drop the device randomly onto the concrete floor from the height of 1m 3 times. the device

shall fulfill the specifications in 2.2.

5-7 Vibration

Subject the device to the vibration for 1 hour each in x,y and z axes with the amplitude of

1.5 mm at 10 to 55 Hz. The device shall fulfill the specifications in 2.2.