1.Scope This specification is applied to Magnetic Buzzer(External Type) The product describe below are used for buzzer in various alarm systems. 2.Basic Condition 2.1 Rated Voltage:1.5Vp-p Square Wave 2.2 Operating Voltage:1~3Vp-p 2.3 Operating Temperature Range:-20 C~+75 C 2.4 Storage Temperature Range:-30 C~+85 C 3.Electrical Characteristics 3.1 Sound Press Level:85dB at 10cm / 1.5Vp-p 3.2 Consumption Current:30mA at 1.5Vp-p 3.3 Resonate Frequency:2731Hz 3.4 Coil Impedance:164 3.5 Material:PPO