Buzzers Upgrade Earlier Models

A series of piezo buzzers carries a KPE Series designation and represent an upgrade from earlier models with an H suffix part number. Four new part numbers make up this latest release. The KPE182 for smoke and fire alarm applications features a minimum output of 100 dB with an operating voltage of 12 V_pk-pk at 2.5 kHz. The KPE502 has a side opening port with an SPL of 93 dB at 3.2 kHz and operating voltage of 30 V_pk-pk. The KPE503 carries an oscillating frequency rating of 3.3 kHz, ±0.5 kHz, through a voltage range of 3 to 28 vdc; the SPL rating is 72 dB. The KPE522 has an internal drive circuit with an SPL of 75 dB at an operating voltage range of 3 to 20 vdc and frequency of 3.2 kHz, ±0.5 kHz. The upgrade in design makes these units well-suited for appliance, security alarm and instrumentation applications. All units are pin mounted and carry operating temperature ratings from -30°C to 115°C.