Technical Parameters of KLJ-4020 SMD Magnetic Buzzer
Oscillation Frequency(Hz): 4000
Operating Voltage(Vp-p): 2.0-4.0
Rated Voltage(Vp-p): 3.0
Current Consumption(mA/max): 110 at Rated Voltage
Sound Pressure Level(dB/min) : 73 at 10cm at Rated Voltage
Coil Resistance(Ω) : 12±2
Operating Temperature(℃）: -20~ +85
Storage Temperature(℃）: -30 ~ +85
Environment Compulsory Standard : ROHS
PS: Vp-p=1/2duty, square wave

Audible distance at rated vol. : 0.5-1m
Application: Mini type smart electronic devices, such as wearable smart devices, artificial intelligence devices and more.