福鼎FDS

产品描述（超薄喇叭）
产品名称： FDS-400045R8W0.5
尺寸：40mm
额定功率：0.5 W
最大功率：0.8W
阻抗：8±15% ?
重量：3g ± 0.1g
共振频率：300KHz?
灵敏度/声压：80± 3 dB
谐振频率：450±20%Hz
频率范围：5kHz

01 Type Dynamic speaker 02 Dimension External diameter 40 mm 03 Rated Input Power 0.5W 04 Impedance 8 ohm ± 15% at 2KHz 05 Resonance Frequency (Fo) 450Hz ± 20% at? Fo, 1V 06 Sensitivity (S.P.L.) 80dB(0.5W/0.1m) ± 3 dB at AVE 0.8K,1.0K,1.2K,1.5K(Hz). 07 Frequency Range Fo ? 5KHz 08 Distortion Less than 10 % at 2000Hz 0.5W 09 Max. Input Power Must be normal at 1.0W white noise for 1 minute. 10 Voice Coil Diameter 13.4 mm 11 Magnet Rare earth permanent (Nd-Fe-B) magnet Φ12.5 x 1mm 12 Weight 3g ± 0.1g 13 Appearance Should not exist any obstacle to be harmful to normal operation; damages, cracks, rusts and distortions, etc. 14 Operation Test Must be normal at program source 0.5W 15 Buzz, Rattle, etc. Should not be audible at 2.0V sine Wave between Fo to 5KHz 16 Polarity When positive voltage is applied to the terminal marked (+), diaphragm should move to the front. 17 Terminal Strength Capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection. 18 Load Test 0.5W white noise is applied for 96 hours and satisfy the test listed on item 05,06,13,15 19 High Temp. Test Keep 96 hours at +70℃±3℃ and leave 3 hours in normal temperature and then check 20 Low Temp. Test Keep 96 hours at -20℃±3℃ and leave 3 hours in normal temperature and then check 21 Humidity Test Keep 96 hours at + 60℃±3℃ relative humidity 95% and leave 3 hours in normal temperature and then checked. 22 Drop Test Drop the speakers contained in normal box onto the board 20mm thick 10 times from the height of 0.75m and then should satisfy the test listed on item 13 and 15

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