Self Drive Piezo Element

The self-drive piezo element only needs to be used with positive feedback oscillating circuit to produce a single tone same as the resonant frequency. The sound was clear; it is a reliable choice in compact spaces, where high sound pressure level and low power consumption are also required.

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Model No	Size (mm)	Input Voltage (Vp-p)	Freq. (Hz)	Capacitance (pF)	Impedance (ohm)	Material	Operating Temp. (℃)
PDF120-0580B	12 x 12 x 0.12	30	5800	10000	300	Brass	-20 ~ +70
PDF150-0420B	15 x 15 x 0.13	30	4200	20000	500	Brass	-20 ~ +70
PDF180-0360B	18 x 18 x 0.2	30	3600	14000	300	Brass	-20 ~ +70
PDF200-0450B	20 x 20 x 0.28	30	4500	20000	300	Brass	-20 ~ +60
PDF200-0580B	20 x 20 x 0.35	30	5800	15000	300	Brass	-20 ~ +60
PDF210-0380B	21 x 21 x 0.25	30	3800	20000	300	Brass	-20 ~ +70
PDF270-0300B	27 x 27 x 0.37	30	3000	25000	500	Brass	-20 ~ +70
PDF270-0270B	27 x 27 x 0.28	30	2700	25000	500	Brass	-20 ~ +70
PDF270-0400B	27 x 27 x 0.42	30	4000	25000	300	Brass	-20 ~ +70
PDF310-0260B	31 x 31 x 0.42	30	2600	30000	300	Brass	-20 ~ +70
PDF345-0320S	34.5 x 34.5 x 0.55	30	3200	35000	250	Stainless Steel	-20 ~ +70
PDF350-0290B	35 x 35 x 0.55	30	2900	30000	300	Brass	-20 ~ +70
PDF350-0380S	35 x 35 x 0.65	30	3800	30000	300	Brass	-20 ~ +70
PDF350-0310S	35 x 35 x 0.55	30	3100	30000	300	Stainless Steel	-20 ~ +70