Model:	DMT-11RP-A	DMT-11RP-B	DMT-11RP-C
Rated Voltage:	1.5 VDC	3 VDC	5 VDC
Operating Voltage:	1 VDC - 2 VDC	1 VDC - 2 VDC	1 VDC - 2 VDC
Current Consumption:*	70 mA max.	70 mA max.	70 mA max.
Sound Pressure:*	80 dB min.	85 dB min.	70 dB min.
Coil Resistance:	6.5 +/- 1 OHM	6.5 +/- 1 OHM	15 +/- 1 OHM
Coil Impedance:*	16 OHM	22 OHM	40 OHM
Resonant Frequency:	2,048Hz	2,731Hz	2,048Hz
Operating Temp:	-40 ~+ 60 degree C	-40 ~+ 60 degree C	-40 ~+ 60 degree C
Weight:	1.5 gram	1.5 gram	1.5 gram

* Applying rated voltage (square wave, 1/2 duty, resonant frequency)
* Distance at 10 cm (applying rated voltage: 2,700 Hz, 1/2 duty, square wave) 
* Applying resonant frequency, sine wave, measuring current 60mA