CMT-8540S-SMT-TR

$2.75

Description：BUZZER MAGNETIC 5V8.5X8.5 SMD
Series：CMT
Mfr：Same Sky (Formerly CUI Devices)
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:36e2873b3e9c Category: Alarms, Buzzers, and Sirens Brand: Same Sky (Formerly CUI Devices)

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

CMT-8540S-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 BUZZER MAGNETIC 5V8.5X8.5 SMD. Review the specifications below when checking this part for your BOM.

Alarms, Buzzers, And Sirens specifications for CMT-8540S-SMT-TR

Description：BUZZER MAGNETIC 5V8.5X8.5 SMD
Series：CMT
Mfr：Same Sky (Formerly CUI Devices)
Package：Tape & Reel (TR),Cut Tape (CT)
Driver Circuitry：Transducer, Externally Driven
Input Type：Zero-Peak Signal
Frequency：4kHz
Technology：Magnetic
Operating Mode：Single Tone
Duration：-
Sound Pressure Level (SPL)：100dB @ 5V, 10cm
Current - Supply：150mA
Port Location：Top
Operating Temperature：-20°C ~ 70°C
Approval Agency：-
Ratings：-
Ingress Protection：-
Mounting Type：Surface Mount
Termination：Solder Pads
Height - Seated (Max)：0.165" (4.20mm)
Voltage - Rated：5 V
Voltage Range：1 ~ 6V
Size / Dimension：0.335" L x 0.335" W (8.50mm x 8.50mm)

Alarms, Buzzers, And Sirens datasheet and documents for CMT-8540S-SMT-TR

CMT-8540S-SMT-TR

Alarms, Buzzers, And Sirens Overview

The CMT-8540S-SMT-TR is a surface-mount magnetic buzzer transducer manufactured by Same Sky. It operates on a 5V rated voltage with a supply current of 150mA. The device produces a sound pressure level of 100dB at 5V measured at 10cm distance. Its operating frequency is 4kHz. The component features solder pad termination and measures 8.50mm x 8.50mm in size with a maximum seated height of 4.20mm. It supports an operating temperature range from -20°C to 70°C.

Alarms, Buzzers, And Sirens Feature Summary

Externally driven magnetic transducer technology for single-tone operation
Surface mount package design with top port location
Zero-peak signal input type compatibility

Alarms, Buzzers, And Sirens Applications

Electronic alarm systems requiring audible alerts
Consumer electronics indicating operational status
Industrial control panels signaling faults or events

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific datasheet version before integration, as manufacturing specifications may undergo updates. Confirm that the external drive circuitry matches the zero-peak signal input requirement and provides sufficient current capacity for the 150mA supply rating. Ensure PCB layout accommodates the specified solder pad dimensions and mounting orientation for proper acoustic performance.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a high-volume surface-mount solution is required for audible indication. The magnetic technology offers robust performance compared to piezo alternatives in certain frequency ranges. Consider the 100dB SPL output for applications needing clear audio signals without excessive power consumption relative to larger transducers.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the CMT series of audio products from Same Sky. The series includes various magnetic and piezo buzzers designed for different voltage and sound pressure requirements. The SMT suffix indicates the surface mount variant, distinguishing it from through-hole options within the same product family.