扬声器规格书(SPEAKER SPECIFICATIONS)

扬声器规格书(SPEAKER SPECIFICATIONS) PRODUCT NO. TSB28E-8A(LEAD FREE)
（产品型号）

TEST IN HIGH TEMP
耐温试验
After having been in a test chamber for 3 days at the
condition of +70℃, and then left 2hours in a room.
Sensitivity Change within 3dB relative to initial value,
Fo/Impedance change within 10% relative to initial value.
TEST IN LOW TEMP
耐寒试验
After having been in a test chamber for 3 days at the
condition of -40℃±3℃and then left 2hours in a room.
Sensitivity Change within 3dB relative to initial value,
Fo/Impedance change within 10% relative to initial value.
STATIC TEST
耐湿试验
After having been in a test chamber for 60hours at the
condition of +60℃ 90%~95%R.H.and then left 4hours in a
room. Sensitivity Change within 3dB relative to initial
value, Fo/Impedance change within 10% relative to initial
value.
LOAD TEST
连续实验
At 0.3W white noise is applied for 96hours and then should
satisfy the test described under item 01and 07.
DROP TEST
落下试验
Dropping to concrete floor from 1.60 m height, in the state
of packing，Directions: 1corner, 3 edges, 6 planes.Total
10 times ，Sensitivity Change within 3dB relative to
initial value, Fo/Impedance change within 10% relative
to initial val
OPERATING
TEMPERATURE
动作温度
-25℃ ～+65℃
STORAGE TEMPERATURE
保存温度 -40℃～+70℃
Temperature Cycle
Test
（温度循环试验）
-40℃ for 0.5h then change to 60℃ for 0.5h
within 5 minutes, then -40℃, total 85cycles.
Sensitivity Change within 3dB relative to initial
value, Fo/Impedance change within 10% relative
to initial value