For more information, please visit the product page. date 01/08/2015 page 1 of 3 MODEL: CPE-121 │ DESCRIPTION: PIEZO BUZZER TRANSDUCER FEATURES • • • • wire leads with feedback 12 Vdc rating low profile 4.5 kHz rated frequency SPECIFICATIONS parameter conditions/description min rated voltage max 12 operating voltage current consumption typ 3 at rated voltage rated frequency 4,000 sound pressure level at 30 cm, rated voltage dimensions Ø24.0 x 5.0 4,500 units Vdc 28 Vdc 13 mA 5,000 Hz 83 dB mm weight material ABS UL94 1/16” HB High Heat (black) terminal wire leads 7.4 g operating temperature -30 85 °C storage temperature -40 95 °C RoHS Notes: 2011/65/EU 1. All specifications measured at 5~35°C, humidity at 45~85%, under 86~106kPa pressure, unless otherwise noted. cui.com For more information, please visit the product page. CUI Inc │ MODEL: CPE-121 │ DESCRIPTION: PIEZO BUZZER TRANSDUCER date 01/08/2015 │ page 2 of 3 MECHANICAL DRAWING units: mm tolerance: ±0.5 mm 1.75 1.9 WIRE CONNECTIONS Color Function Red +terminal (M) Black -terminal (G) Blue feedback (F) UL1571 LF 32AWG 5.0 34.0 1.0 blue red black 120.0 29.0 24.0 5.0 2.9 5.0 PERFORMANCE CURVES P: Voltage vs. Sound Pressure Level I: Voltage vs. Current Consumption DRIVING CIRCUIT Notes: 1. The current consumption and the sound pressure level are measured by using the recommended driving circuit shown above. cui.com 1.9 For more information, please visit the product page. CUI Inc │ MODEL: CPE-121 │ DESCRIPTION: PIEZO BUZZER TRANSDUCER date 01/08/2015 │ page 3 of 3 REVISION HISTORY rev. description date 1.0 initial release 11/12/2007 1.01 applied new spec template 01/08/2015 The revision history provided is for informational purposes only and is believed to be accurate. Headquarters 20050 SW 112th Ave. Tualatin, OR 97062 800.275.4899 Fax 503.612.2383 cui.com [email protected] CUI offers a one (1) year limited warranty. Complete warranty information is listed on our website. CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.