产品描述 2.Characteristics 2.1?Electrical and Mechanical Characteristics ITEM SPECIFICATIONS 01 Type Dynamic speaker 02 Dimension External diameter 36mm 03 Rated Input Power 0.5W 04 Max. Input Power 0.7W?for 1 minute 05 Impedance 50?ohm ± 15% at?1000Hz. 06 Resonance Frequency (Fo) 450Hz ± 20% at ?Fo, 1V 07 Sensitivity (S.P.L.) 91?dB (0.5W /?0.1m) ± 3 dB at AVE0.8,1.0,1.2,1.5?KHz 08 Frequency Range Fo ? 5KHz 09 Total Harmonics Distortion Max?8?% at 1?KHz,0.5W. 10 Voice Coil Diameter?10.25?mm 11 Magnet Rare earth permanent (Nd-Fe-B) magnet Φ9.7x1.3?mm 12 Weight 10g ± 0.2g 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 5.0V 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 Temperature Operating temperature: -20℃?to +60℃ Storage ?temperature: -30℃?to +80℃ 2.2.?MEASURING METHOD Test Condition A.STANDARD Temperature : 15 ~ 35℃ Relative humidity : 25% ~ 85%, Atmospheric pressure : 860mbar to 1060mbar. Atmospheric pressure : 860mbar to 1060mbar. B.BASIC Temperature : 20±3℃ Relative humidity : 60% ~ 70%, Atmospheric pressure : 860mbar to 1060mbar C.Standard Test Fixture 1.Input Power :0.5 W 2.Zero Level : -dB 3.Mode : SPEAKER 4.potentiometer Range : 50dB 5.Sweep Time : 0.5sec ? 3.FrequencyResponse Curve? ? 4.Dimension ?
产品名称：FDS-400056R50W0.5
尺寸：直径36mm
额定功率：0.5W
最大功率：0.7W
阻抗：5±15% ?
重量：10g±0.2g
共振频率：450Hz ±20%
灵敏度/声压：91dB
频率范围：5KHz
音圈直径：10.25 mm
如因作品内容、版权和其它问题需要同本网联系的，联系邮箱：pitechan@foxmail.com。
上一篇: 滑块式电子尺 滑块电阻尺
下一篇: 供应PSI