CMT-0945-03-SMT-TR

$0.55

Description：9MMX4.5MM 3 V, 85 DB, SURFACE M
Series：CMT
Mfr：Same Sky (Formerly CUI Devices)
Package：Tape & Reel (TR)

SKU:10b22810c6f5 Category: Alarms, Buzzers, and Sirens Brand: Same Sky (Formerly CUI Devices)

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Product introduction

CMT-0945-03-SMT-TR is listed in the Alarms, Buzzers, And Sirens range at ChipApex. The manufacturer field lists Same Sky (Formerly CUI Devices). Its product description is 9MMX4.5MM 3 V, 85 DB, SURFACE M. Review the specifications below when checking this part for your BOM.

Alarms, Buzzers, And Sirens specifications for CMT-0945-03-SMT-TR

Description：9MMX4.5MM 3 V, 85 DB, SURFACE M
Series：CMT
Mfr：Same Sky (Formerly CUI Devices)
Package：Tape & Reel (TR)
Driver Circuitry：Transducer, Externally Driven
Input Type：Zero-Peak Signal
Frequency：2.7kHz
Technology：Magnetic
Operating Mode：Single Tone
Duration：-
Sound Pressure Level (SPL)：85dB @ 3V, 10cm
Current - Supply：30mA
Port Location：Top
Operating Temperature：-40°C ~ 80°C
Approval Agency：-
Ratings：-
Ingress Protection：-
Mounting Type：Surface Mount
Termination：Solder Pads
Height - Seated (Max)：0.197" (5.00mm)
Voltage - Rated：3 V
Voltage Range：2.5 ~ 4.5V
Size / Dimension：0.362" Dia (9.20mm)

Alarms, Buzzers, And Sirens datasheet and documents for CMT-0945-03-SMT-TR

CMT-0945-03-SMT-TR

Alarms, Buzzers, And Sirens Overview

The CMT-0945-03-SMT-TR is a surface-mount magnetic audio transducer manufactured by Same Sky. It features an 8.5 mm x 4 mm footprint and operates at a rated voltage of 3 V. The device produces a sound pressure level of 85 dB at a resonant frequency of 2.7 kHz. Designed for board-mount applications, it utilizes SMD/SMT termination types and includes a magnetic drive mechanism for efficient acoustic output in compact electronic assemblies.

Alarms, Buzzers, And Sirens Feature Summary

Surface-mount construction for automated PCB assembly
Magnetic transducer technology for audio indication
Compact form factor suitable for space-constrained designs

Alarms, Buzzers, And Sirens Applications

Electronic equipment status indicators
Consumer appliance alert systems
Portable device audio signaling

Alarms, Buzzers, And Sirens Procurement Notes

Verify the manufacturer designation as Same Sky, formerly CUI Devices, to ensure component authenticity. Confirm RoHS compliance details through official documentation before integration. Validate that the specific suffix matches the required surface-mount variant. Cross-reference datasheet specifications against design requirements to ensure compatibility with operating voltages and acoustic needs.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a low-profile magnetic buzzer is required for surface-mount processes. Ensure the 3 V rating aligns with the system power supply. Consider the 85 dB output level for audibility requirements in the target application environment. Verify mechanical dimensions fit within the allocated PCB area and clearance constraints.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the CMT series of board-mount audio transducers from Same Sky. It represents a magnetic solution distinct from piezoelectric alternatives in the lineup. The series offers various sizes and acoustic outputs to support diverse industrial and consumer electronics signaling needs.