AS01550MR-2-R

Overview

The AS01550MR-2-R is a round electromagnetic speaker manufactured by PUI Audio, Inc. It features a 50 Ohm impedance and a power rating of 300 mW. The device operates within a frequency range of 800 Hz to 20 kHz, with a self-resonant frequency of approximately 850 Hz. It delivers an acoustic output of 86 dBA at 1 watt/10 cm. The unit measures 15 mm in diameter and 7.2 mm in depth, utilizing a Mylar cone and Neodymium magnet. It employs SMD/SMT top-port termination for board mounting.

Feature Summary

• Electromagnetic transduction using a neodymium magnet and mylar cone
• Surface-mount design with top-port acoustic output
• Broadband frequency response suitable for general audio applications

Applications

• Consumer electronics audio output
• Industrial control panel indicators
• Medical device alert systems

Procurement Notes

Verify the specific datasheet revision to confirm RoHS compliance status and exact pinout configuration. Ensure the PCB footprint matches the manufacturer's recommended land pattern for reliable SMD soldering. Confirm that the operating environment remains within the specified temperature limits to maintain performance integrity.

Selection Notes

Select this component when a low-profile, surface-mount solution is required for general-purpose audio signaling. The 50 Ohm impedance suits standard driver circuits without requiring complex matching networks. Consider the 86 dBA sensitivity for applications needing moderate volume levels in small enclosures.

Part Context

This part belongs to the AS series of speakers from PUI Audio, Inc., which specializes in compact audio components for various industries. The series includes both electromagnetic and piezoelectric options, offering engineers flexible choices for size, sound pressure level, and mounting requirements in modern electronic designs.

Replacement Considerations

Direct substitutes must match the 15mm diameter, 50 Ohm impedance, and SMD package. Verify that alternative parts provide comparable sensitivity (approx. 86 dBA) and frequency response characteristics to ensure consistent acoustic performance in the final assembly.