CMS-305-158SP-67

$3.15

Description：SPEAKER 8OHM 1.5W TOP PORT 90DB
Series：CMS
Mfr：Same Sky (Formerly CUI Devices)
Package：Tray

SKU:e47bfd3f114e Category: Speakers Brand: Same Sky (Formerly CUI Devices)

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Product introduction

CMS-305-158SP-67 is listed in the Speakers range at ChipApex. The manufacturer field lists Same Sky (Formerly CUI Devices). Its product description is SPEAKER 8OHM 1.5W TOP PORT 90DB. Review the specifications below when checking this part for your BOM.

Speakers specifications for CMS-305-158SP-67

Description：SPEAKER 8OHM 1.5W TOP PORT 90DB
Series：CMS
Mfr：Same Sky (Formerly CUI Devices)
Package：Tray
Type：General Purpose
Technology：Magnetic
Impedance：8 Ohms
Power - Max：2 W
Shape：Round
Termination：Solder Pads
Size / Dimension：1.181" Dia (30.00mm)
Height - Seated (Max)：0.224" (5.70mm)
Frequency - Self Resonant：550Hz
Efficiency - dBA：90
Efficiency - Testing：100mW/100mm
Efficiency - Type：Sound Pressure Level (SPL)
Port Location：Top
Material - Cone：Polyethylenimine (PEI)
Material - Magnet：Nd-Fe-B
Ingress Protection：IP67 - Dust Tight, Waterproof
Ratings：-
Frequency Range：440 Hz ~ 10 kHz
Power - Rated：1.5 W

Speakers datasheet and documents for CMS-305-158SP-67

CMS-305-158SP-67

Speakers Overview

The CMS-305-158SP-67 is a general-purpose, round micro speaker manufactured by Same Sky. It features an 8 Ohm impedance and a rated power of 1.5 W, with a maximum power handling capacity of 2 W. The device delivers a sound pressure level of 90 dBA when tested at 100 mW/100mm. Its frequency range spans from 440 Hz to 10 kHz, with a self-resonant frequency of 550Hz. The unit utilizes a PEI cone material and an Nd-Fe-B magnet. It has a top port location and solder pad termination. The physical dimensions are a 30.00mm diameter with a maximum installation height of 5.70mm.

Speakers Feature Summary

IP67 ingress protection rating for dust and water resistance
Top port design for directional sound output
Construction using polyetherimide (PEI) diaphragm material

Speakers Applications

Medical electronic devices requiring sealed audio components
Industrial equipment needing moisture-resistant speakers
Consumer electronics demanding compact form factors

Speakers Procurement Notes

Verify the specific datasheet version for the CMS-305 series to confirm RoHS compliance status and REACH restrictions. Ensure that the application environment remains within the specified operating temperature range of -30°C to 70°C. Confirm that the enclosure design accommodates the top port configuration to maintain acoustic performance standards.

Speakers Selection Notes

Select this component when a round shape and IP67 sealing are required for harsh environments. The 8 Ohm impedance suits standard amplifier outputs. Consider the 5.70mm height constraint for tight assembly spaces. Evaluate the 90 dBA sensitivity against the required acoustic output levels for the target application.

Speakers Part Context

This model belongs to the CMS series of micro speakers from Same Sky. The series includes various shapes and sizes, such as rectangular and round configurations. The CMS-305 variant specifically addresses applications needing a 30mm diameter footprint with high environmental sealing capabilities compared to standard unsealed units.