weight (g) 1 operating temperature (c) -20 ~ +70 operating voltage (vp-p) 1 ~ 30 specification (all data taken at 25c unless otherwise specified) h value applying rated voltage, rated frequency, 50% duty square wave piezo sound generators HPA17B www.jlworld.com unit : mm tolerance : 0.3mm dimension h sound output at 10cm (db) 78 3 rated voltage (vp-p) 5 h rated current (ma) 1 h rated frequency (hz) 4000 500 storage temperature (c) -20 ~ +70 HPA17B jl world capacitance (nf) 12 30% frequency response applied voltage : 5vp-p,50% duty square wave measuring distance : 10cm 60 70 80 90 500 1k 2k 3k 5k 10k 20k hz db 10.0 ?0.8 6.0 7.0 ?17.0 0.9 ?3.2 10.0 ?1.2 sound port
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