CMI-1240-SMT-TR

$2.73

Description：BUZZER PIEZO 12V 16.9X16.9MM SMD
Series：-
Mfr：Same Sky (Formerly CUI Devices)
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:6e54bcca9406 Category: Alarms, Buzzers, and Sirens Brand: Same Sky (Formerly CUI Devices)

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Product introduction

Product Detailed Parameters

Description：BUZZER PIEZO 12V 16.9X16.9MM SMD
Series：-
Mfr：Same Sky (Formerly CUI Devices)
Package：Tape & Reel (TR),Cut Tape (CT)
Driver Circuitry：Indicator, Internally Driven
Input Type：DC
Frequency：4kHz
Technology：Piezo
Operating Mode：Single Tone
Duration：-
Sound Pressure Level (SPL)：90dB @ 12V, 10cm
Current - Supply：18mA
Port Location：Top
Operating Temperature：-30°C ~ 70°C
Approval Agency：-
Ratings：Washable
Ingress Protection：-
Mounting Type：Surface Mount
Termination：Solder Pads
Height - Seated (Max)：0.327" (8.30mm)
Voltage - Rated：12 V
Voltage Range：3 ~ 16V
Size / Dimension：0.665" L x 0.665" W (16.90mm x 16.90mm)

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CMI-1240-SMT-TR

Overview

The CMI-1240-SMT-TR is a surface-mount piezoelectric audio transducer manufactured by Same Sky. It features a compact housing constructed from Polyphenylene Sulfide (PPS). The component operates within a voltage range of 3 VDC to 16 VDC and functions reliably in temperatures between -30°C and +70°C. Key acoustic specifications include a sound pressure level of 90 dB at a resonant frequency of 4 kHz. The device utilizes solder pad termination for PCB integration.

Feature Summary

Piezoelectric transduction mechanism for audio signaling
High-temperature resistant PPS housing material
Wide operating voltage compatibility
Surface-mount design for automated assembly

Applications

Electronic equipment status indicators
Consumer appliance alert systems
Industrial control panel signaling

Procurement Notes

Verify the specific datasheet version for the CMI-1240-SMT-TR to confirm RoHS compliance details and exact dimensional tolerances. Ensure the receiving PCB footprint matches the manufacturer's recommended land pattern. Confirm that the driving circuit can supply the necessary current for the specified voltage range without exceeding thermal limits during continuous operation.

Selection Notes

Select this component when a high-output 90 dB signal is required in a space-constrained surface-mount application. The wide 3V to 16V operating range allows flexibility in power supply design compared to fixed-voltage buzzers. Consider the 8.3 mm height constraint for enclosure clearance. The PPS housing offers durability suitable for environments requiring washability or higher thermal stability than standard plastic housings.

Part Context

This part belongs to the Same Sky CMI series of piezoelectric transducers, designed for general-purpose audio indication. The series emphasizes robust construction with PPS materials and standardized surface-mount footprints to facilitate integration into various electronic assemblies requiring reliable acoustic alerts.