AS04004PR-WR-R

Overview

The AS04004PR-WR-R is a round electromagnetic speaker manufactured by PUI Audio, Inc. It features a 40 mm diameter design with a rated power of 3 W and a nominal impedance of 4 Ohms. The unit delivers an 86 dB sensitivity level and operates within a frequency range of 100 Hz to 20 kHz. It utilizes a Neodymium Iron Boron magnet and includes top-mounted terminals for board mounting applications.

Feature Summary

• Compact round form factor suitable for space-constrained industrial enclosures
• High-efficiency acoustic output driven by neodymium magnetic structure
• Direct solder terminal configuration for straightforward PCB integration

Applications

• Industrial control panel audio indicators
• General purpose alarm systems
• Consumer appliance feedback signals

Procurement Notes

Verify the specific suffix WR-R against official PUI Audio documentation to confirm terminal type and mounting style. Ensure the 4 Ohm impedance matches the driving circuit requirements. Cross-reference the 3 W power rating with thermal management capabilities in the final assembly. Confirm RoHS compliance status through the manufacturer's current datasheet before procurement.

Selection Notes

Select this component when a compact, high-sensitivity round speaker is required for general-purpose audio signaling. The 4 Ohm impedance suits standard low-voltage driver circuits. Consider the 100 Hz to 20 kHz bandwidth for voice or tone reproduction rather than full-range music. Evaluate the physical dimensions against available chassis space for proper acoustic coupling.

Part Context

This model belongs to the AS series of miniature speakers from PUI Audio, Inc., designed for reliable performance in electronic devices. The series typically offers various shapes and sizes to accommodate different enclosure constraints while maintaining consistent acoustic quality and durability standards for commercial applications.

Replacement Considerations

Check for direct substitutes like AS04004PR-R if terminal variations are acceptable. Verify that any replacement maintains the 4 Ohm impedance and 3 W power rating to ensure circuit compatibility without modification.