CM-28431-000

$10.29

Description：SPEAKER 30OHM TOP PORT 119DB
Series：CM
Mfr：Knowles
Package：Bulk

SKU:90bf2f0b65f0 Category: Speakers Brand: Knowles

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Product introduction

Product Detailed Parameters

Description：SPEAKER 30OHM TOP PORT 119DB
Series：CM
Mfr：Knowles
Package：Bulk
Type：Receiver, Balanced Armature
Technology：Magnetic
Impedance：30 Ohms
Power - Max：-
Shape：Round
Termination：Flex Contacts
Size / Dimension：0.651" Dia (16.54mm)
Height - Seated (Max)：0.330" (8.38mm)
Frequency - Self Resonant：-
Efficiency - dBA：119
Efficiency - Testing：-
Efficiency - Type：-
Port Location：Top
Material - Cone：-
Material - Magnet：-
Ingress Protection：-
Ratings：-
Frequency Range：150 Hz ~ 6 kHz
Power - Rated：-

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CM-28431-000

Overview

The Knowles CM-28431-000 is a balanced armature speaker transducer designed for board mount applications. It features a round shape with solder pad termination. The unit has a diameter of 16.54 mm, a length of 8.38 mm, and a depth of 8.38 mm. Key electrical parameters include an impedance of 30 Ohms and a frequency response starting at 500 Hz. The device achieves a sound pressure level of 119 dBA.

Feature Summary

Utilizes balanced armature technology for audio transduction
Designed for direct board mounting via solder pads
Constructed in a compact round form factor

Applications

Audio output devices requiring high sound pressure levels
Compact electronic assemblies with limited spatial constraints
Board-mounted acoustic systems

Procurement Notes

Verify component authenticity through official Knowles documentation or authorized distributors. Confirm RoHS compliance status as indicated in the detailed specifications. Ensure the part number matches exactly to avoid integration errors. Check current availability status as distribution may vary by region. Validate technical parameters against specific design requirements before procurement.

Selection Notes

Select this component when a high-output balanced armature speaker is required for space-constrained designs. The 30 Ohm impedance and 119 dBA sensitivity are critical for matching amplifier stages. Verify that the 500 Hz lower frequency limit meets application needs. Ensure the board layout accommodates the 16.54 mm diameter and solder pad termination style.

Part Context

This component belongs to the Knowles speakers and transducers category, specifically within the balanced armature sub-type. It is engineered for precision audio reproduction in compact electronic environments. The product line emphasizes high performance and reliability for demanding audio applications.