MT9671 series specifications: parameters units MT9671a01np unit: mm ? tolerance: 0.5mm min sound pressure level at 10cm dba 80 rated voltage vo-p 1.5 operating voltage vo-p 1 - 2 resonance frequency hz 3100 max operating current ma 80 coil resistance 5.5 1 operating temperature c -20 - +60 case material - noryl weight g 0.6 value applying rated voltage (1/2 duty square wave, resonance frequency) magnetic transducer standard type www.hk-sound.com specifications: unit: mm ? tolerance: 0.5mm min sound pressure level at 10cm dba 75 rated voltage vo-p 1.5 operating voltage vo-p 1 - 3 resonance frequency hz 2048 max operating current ma 30 coil resistance 16 2 operating temperature c -20 - +70 case material - noryl weight g 2.0 value applying rated voltage (1/2 duty square wave, resonance frequency) mt1255 series mt1238 series specifications: unit: mm ? tolerance: 0.5mm min sound pressure level at 10cm dba 75 75 rated voltage vo-p 1.5 1.5 operating voltage vo-p 1 - 3 1 - 3 resonance frequency hz 2048 2400 max operating current ma 40 40 coil resistance 16 416 4 operating temperature c -20 - +70 -20 - +70 case material - noryl noryl weight g 2.0 2.0 value applying rated voltage (1/2 duty square wave, resonance frequency) parameters units mt1255a01np p. 8 parameters units mt1238a01np mt1238b01np
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