PSR37N45SK

Speakers Overview

The PSR37N45SK is a general-purpose piezoelectric speaker manufactured by Mallory Sonalert Products Inc. It features a top port design with a diameter of 1.457 inches (37.00 mm). The device operates at a frequency of 480 Hz and delivers a sound pressure level of 92 dBA. Electrical specifications include a power rating of 200 mW, with a maximum power dissipation capacity of 400 mW. The unit utilizes a plastic housing and is designed for panel mounting applications requiring compact audio signaling.

Speakers Feature Summary

• Top port acoustic output configuration
• Compact cylindrical form factor
• High sound pressure efficiency

Speakers Applications

• General purpose audio signaling
• Panel mounted indicators
• Compact electronic enclosures

Speakers Procurement Notes

Verify the specific impedance value, as source data lists conflicting values including 45 ohms and unspecified ratings. Confirm RoHS compliance status directly with the manufacturer or authorized distributor, as documentation references vary. Ensure the selected variant matches the required 200 mW continuous power rating versus the 400 mW peak dissipation limit to prevent thermal damage during operation.

Speakers Selection Notes

Select this component when a high-decibel output is required from a small physical footprint. The 480 Hz frequency provides a distinct low-tone alert suitable for industrial environments. Verify that the mounting space accommodates the 37 mm diameter and that the driving circuit can handle the specified power constraints without exceeding the maximum dissipation limits.

Speakers Part Context

This part belongs to the PSR series of speakers from Mallory Sonalert. The series focuses on compact, high-output devices for space-constrained applications. Unlike the broader SC or SNP buzzer lines, this specific model is categorized strictly as a speaker rather than an integrated buzzer, requiring external drive signals.

Speakers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.