CMS-4021-34SP-X5

Speakers Overview

The CMS-4021-34SP-X5 is a general-purpose speaker manufactured by Same Sky. It features a round frame with dimensions of 40 x 21 mm. The unit utilizes a Neodymium (Nd-Fe-B) magnet and a PEI cone for sound transduction. Electrical specifications include an impedance of 4 Ohms and a power handling capacity of 3 W to 5 W, depending on the source documentation. The frequency response ranges from approximately 144 Hz or 180 Hz up to 20 kHz. The component employs solder pads for termination and carries an IPX5 ingress protection rating.

Speakers Feature Summary

• Utilizes a neodymium magnet structure for efficient acoustic output
• Constructed with a PEI cone material for durability
• Features a round frame design suitable for compact enclosures
• Provides IPX5 environmental protection against water jets

Speakers Applications

• Consumer electronics audio output
• General purpose signaling devices
• Compact enclosure integration requiring round form factor

Speakers Procurement Notes

Verify the specific power rating (3 W vs 5 W) and low-frequency cutoff (144 Hz vs 180 Hz) required for your application, as different distributor sources list varying specifications for this part number. Confirm that the IPX5 rating meets your environmental exposure requirements. Ensure your PCB layout accommodates the specified solder pad termination style rather than lead wires.

Speakers Selection Notes

Select this component when a round profile is necessary for mechanical fit within a device chassis. The 4 Ohm impedance is standard for many audio amplifier outputs. Consider the IPX5 rating if the device may be exposed to splashing water. Verify thermal management capabilities if operating near the maximum power limits defined in the official datasheet.

Speakers Part Context

Same Sky, formerly known as CUI Devices, produces this speaker as part of its audio and transducer portfolio. The company focuses on providing electronic components for consumer and industrial applications. This specific model represents a standard off-the-shelf solution for basic audio reproduction needs where size constraints favor a circular geometry over rectangular alternatives.

Speakers Replacement Considerations

Direct substitutes must match the 40 mm diameter, 21 mm depth, 4 Ohm impedance, and round frame shape. Verify that any replacement maintains the IPX5 rating if environmental sealing is critical. Check that the new component's frequency response covers the required bandwidth for the intended audio signal.