Additional Resources: Product Page | 3D Model | PCB Footprint date 01/07/2020 page 1 of 5 MODEL: CMI-1240-SMT │ DESCRIPTION: PIEZO BUZZER INDICATOR FEATURES • low current • washable • internally driven SPECIFICATIONS parameter conditions/description min typ max units rated voltage 12 Vdc operating voltage 3 16 Vdc current consumption at rated voltage 18 mA rated frequency 3,800 4,000 4,200 Hz sound pressure level at 10 cm, rated voltage 90 dB dimensions 16.9 x 16.9 x 7.8 mm weight 3.2 g material PPS UL-94 V-0 (black) terminal SMT type (Au plating) operating temperature -30 70 °C storage temperature -40 80 °C RoHS yes Notes: 1. All specifications measured at 5~35°C, humidity at 45~85%, under 86~106 kPa pressure, unless otherwise noted. 2. Add suffix “-TR” to the model number for tape & reel packaging, otherwise packaging will be in tubes. SOLDERABILITY parameter conditions/description min typ max units reel storage at relative humidty <60% 30 °C reflow soldering3 see recommended reflow soldering profile 260 °C drying conditions4 bake at 40°C for 24 hours Note: 3. It is recommended to reflow solder within 48 hours from opening vacuum packaging at a temperature <30°C & relative humidity <60%. 4. When out of packaging for more than 48 hours. SMT Reflow Solder Profile (Pb Free) Peak Temp 260°C 255°C C) 20~40 sec ° e ( ur 217°C at 200°C er mp 150°C e T 60~180 sec 60~150 sec Time (sec) cuidevices.com

Additional Resources: Product Page | 3D Model | PCB Footprint CUI Devices │ MODEL: CMI-1240-SMT │ DESCRIPTION: MAGNETIC BUZZER INDICATOR date 01/07/2020 │ page 2 of 5 MECHANICAL DRAWING units: mm tolerance: ±0.5 mm RECOMMENDED PCB LAYOUT (Top View) PERFORMANCE CURVES Voltage vs. Sound Pressure Level Voltage vs. Current Consumption 100 20 90 18 B) 80 A)16 (d m vel 70 n (14 Le 60 tio12 e mp ur 50 u10 s s s n Pre 40 Co 8 Sound 3200 urrent 64 C 10 2 0 0 3 6 9 12 16 3 6 9 12 16 Voltage (Vdc) Voltage (Vdc) cuidevices.com

Additional Resources: Product Page | 3D Model | PCB Footprint CUI Devices │ MODEL: CMI-1240-SMT │ DESCRIPTION: MAGNETIC BUZZER INDICATOR date 01/07/2020 │ page 3 of 5 PACKAGING (TUBE) units: mm Tube Size: 450 x 18.6 x 9.7 mm Six Tube Size: 450 x 37.2 x 29.1 mm Carton Size: 540 x 190 x 100 mm Tube QTY: 25 pcs per tube Six Tube QTY: 150 pcs per six tube Carton QTY: 1,500 pcs per carton cuidevices.com

Additional Resources: Product Page | 3D Model | PCB Footprint CUI Devices │ MODEL: CMI-1240-SMT │ DESCRIPTION: MAGNETIC BUZZER INDICATOR date 01/07/2020 │ page 4 of 5 PACKAGING (TAPE & REEL) units: mm Reel Size: Ø330 mm Carton Size: 349 x 177 x 359 mm Reel QTY: 320 pcs per reel Carton QTY: 1,280 pcs per carton cuidevices.com

Additional Resources: Product Page | 3D Model | PCB Footprint CUI Devices │ MODEL: CMI-1240-SMT │ DESCRIPTION: MAGNETIC BUZZER INDICATOR date 01/07/2020 │ page 5 of 5 REVISION HISTORY rev. description date 1.0 initial release 06/03/2005 1.01 updated part number, applied new spec template 05/13/2013 1.02 internal IC changed 06/29/2017 1.03 voltage range adjusted 09/28/2017 1.04 added storage and drying conditions, added TR package option 11/30/2018 1.05 brand update 01/07/2020 The revision history provided is for informational purposes only and is believed to be accurate. CUI Devices offers a one (1) year limited warranty. Complete warranty information is listed on our website. CUI Devices reserves the right to make changes to the product at any time without notice. Information provided by CUI Devices is believed to be accurate and reliable. However, no responsibility is assumed by CUI Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI Devices 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. cuidevices.com