Piezo passive buzzer need to be connected to the audio output circuit to sound, the advantage is the sound frequency controllable, power consumption is small, generally in 20ma below, not more than 100ma. In general, the piezoelectric buzzer is driven by square wave (VP-P).Piezo passive buzzer has small size, light weight, thin thickness, power consumption, good reliability, low cost. Applicable to electronic watches, pocket calculator, electronic doorbell and electronic toys . Microwave oven, washing machine, air conditioner, blood glucose meter, smoke alarm, reversing radar, tire pressure monitor, coffee machine. Also can be used as sound control toys sound sensor. Mainly used in other fields. The monthly supply of 5 million buzzers, through the ISO, IATF certification. If necessary, please contact Any needs please contact Mr.Zhou：0519-86321175 or market@wj-lianhua.com .

Model Product Name Rated Voltage
(V)		 Operating Voltage
(V)		 Current Consumption
(mA)		 SPL
(dB)		 Resonant Frequency
(Hz)		 Operating Temperature
(℃)		 Weight
(g)		 Carton Size
(cm)		 Quantity
(pcs)		 Gross Weight
(Kg)
Piezo Buzzer LPT2270

LPT2270-2-TB-03-4.0-15-10.0-R

 3 1～25 ≤3 ≥80@10cm 4000±500 -40 ～ +85 2.3 66×36×24 2000 6.6
Piezo Buzzer LPT2270D

LPT2270D1-TB-03-2.0-20-12.5-R

 3 1～30 ≤3 ≥75@10cm 2000±500 -40 ～ +85 2.5 35.5×27.5×25.5 3000 13
Piezo Buzzer LPT2280

LPT2280-TA-09-4.1-14-10.0

 9 1～30 ≤9 ≥90@10cm 4100±500 -40 ～ +85 2.2 66×36×24 2000 6.4
Piezo Buzzer LPT3011A

LPT3011A-TB-12-2.0-35-13.0-R

 12 1～30 ≤12 ≥95@10cm 2000±500 -40 ～ +85 4.8 41×37×39 1000 6.8
Piezo Buzzer LPT3016W

LPT3016W405-TA-09-3.4-R

 9 3～28 ≤18 ≥95@10cm 3400±500 -20 ～ +70 6.3 58.5×33.5×34 2000 15.6
Piezo Buzzer LPT3055DW

LPT3055DW1405-TA-09-4.0-20-R

 9 1～30 ≤9 ≥90@10cm 4000±500 -20 ～ +70 4 58.5×33.5×34 1500 9
Piezo Buzzer LPT3075AD

LPT3075AD-TO-10-2.8-20-15.0-R

 10 1～30 ≤10 ≥85@10cm 2800±500 -40 ～ +85 4.2 58.5×33.5×34 2500 13.5
Piezo Buzzer LPT3590BW

LPT3590BW1003-TA-12-1.1-50-R

 12 1～30 ≤12 ≥85@10cm 1100±500 -20 ～ +70 6 58.5×33.5×34 1500 12
Piezo Buzzer LPT4524

LPT4524-TP-12-3.0-250-R

 12 3～50 ≤100 ≥95@30cm 3000±500 -20 ～ +95 11.5 58.5×33.5×34 500 8.75
Piezo Buzzer LPT5216

LPT5216-TP-18-2.0-250-R

 18 3～60 ≤200 ≥90@300cm 3000±1000 -20 ～ +95 14 58.5×33.5×34 540 10.56
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