PSR1813N07S2.5K

Speakers Overview

The PSR1813N07S2.5K is a rectangular general-purpose speaker manufactured by Mallory Sonalert Products Inc. It features an 8-ohm impedance and a power rating of 700 mW. The device utilizes a top port design for sound output. Its frequency response range spans from 480 Hz to 7 kHz, with a sensitivity level of 91 dB. The physical dimensions are specified as 18 mm in length, 13 mm in width, and 2.5 mm in height.

Speakers Feature Summary

• Rectangular form factor suitable for compact electronic assemblies
• Top port acoustic design for directed sound projection
• Broad frequency response covering mid-range audio frequencies

Speakers Applications

• General purpose audio indication in consumer electronics
• Status alerting in industrial control panels
• Audible signaling in portable battery-operated devices

Speakers Procurement Notes

Verify the specific mechanical mounting requirements against the application panel design, as this component uses a rectangular footprint. Confirm that the driving circuit can supply sufficient current for the 8-ohm impedance without exceeding the 700 mW power limit. Ensure the operating environment does not exceed the thermal limits defined in the official datasheet. Cross-reference the RoHS compliance status if environmental regulations apply to the final assembly.

Speakers Selection Notes

Select this model when a low-profile, rectangular speaker is required for space-constrained designs. The 8-ohm impedance is compatible with standard audio output stages found in many microcontroller-based systems. Consider the 91 dB sensitivity for applications requiring clear audible alerts without excessive amplification. Compare the 480 Hz to 7 kHz frequency range against voice or tone requirements to ensure intelligibility.

Speakers Part Context

This component belongs to the Mallory Sonalert products line, which specializes in audio transducers for industrial and commercial applications. The PSR series typically offers robust performance in various environmental conditions. As a rectangular speaker, it differs from circular piezo buzzers by providing different acoustic dispersion characteristics suitable for speech or complex tones rather than simple beeps.

Speakers FAQ

What is the recommended operating voltage for this speaker?

The datasheet specifies a power rating of 700 mW at 8 ohms. Using the formula P=V²/R, the maximum continuous RMS voltage is approximately 23.6 V. However, typical operation in signal circuits often uses lower voltages (e.g., 3.3V or 5V) depending on the desired volume.

Does this speaker support AC or DC input?

Speakers are inherently AC devices that convert electrical signals into sound waves. While they can be driven by DC-coupled amplifier outputs, the input signal itself must be an alternating waveform within the 480 Hz to 7 kHz frequency range to produce audible sound.