
A piezo electric sounder which can supply levels of over 100d B at a distance of 30cm yet is only 4mm high. It can therefore be used wherever space is at an absolute premium. It requires an external driver which should operate on or as near as possible to the buzzers resonant frequency of 5500 Hz. This source should present a maximum drive voltage of 30V peak-to-peak to the buzzer. 100mm lead-out wires with tinned ends are provided. Mounting lugs with 2.5mm holes are moulded into the buzzers cream-coloured case. Specifications Resonant frequency 5500 Hz plusmn 500 Hz Resonant resistance 300 Omega max. Electrostatic capacitance 12000 p F plusmn 30 Sound output at 30cm 103d B max. Height 4mm Diameter 23mm Length lug tip to tip 35mm Fixing centres 29mm x 8BAM2