PMT-20N12AL04-04

传感器尺寸(毫米)20
直流电阻3.48
共振频率378.1
半空间灵敏度78.47
额定噪音功率1
测试频谱带宽350-20K

传感器尺寸20
直流电阻3.48 Ω±5.0%
共振频率378.1 Hz15%
半空间灵敏度 @ 2.83V78.47 dB±1.01
灵敏度 @ 1W/1m75.7 dB±1.01
额定噪音功率 (IEC 268-5 18.1)1 W
测试频谱带宽350-20K 12 dB/Oc
活塞有效面积2.2 cm2
移动质量0.2 g
马达力因数0.83 T•m
音圈内径12 mm
气隙高度1 mm
线性冲程0.4 mm
铁磁流体类型APG 834
最小阻抗4.25 Ω±7.5%
音圈电感0.03 mH
机械品质因数1.14
电品质因数1.98
总品质因数0.72
比率522.24 fs/Qts
能量带宽产品 ((1/Qes)•fs)
支撑顺性1083 μm/N
有效圆锥直径1.66 cm
马达效率因数0.2 (T•m2)/Ω
音圈管材料KSV
传感器质量0.01 Kg
等效音量0.01 L

This 20 mm 4 ohm compact Premium Micro Transducer is designed for computer, television array, and similar applications. It features a neodymium-iron-boron magnet, a light aluminium cone, and a high-temperature polycarbonate frame. The PMT family`s transducers feature low resonant frequencies and a full range bandwidth.