PF-27N25PSQ

Overview

The PF-27N25PSQ is a piezoelectric buzzer from Mallory Sonalert, designed for through-hole mounting. It operates within a voltage range of 4 to 28 VDC and features a fast pulse tone at 2.5 kHz. The device delivers a sound pressure level of 90 dBA with dimensions of 30 mm diameter by 16 mm height. Rated for 12 VDC input, it supports an operating temperature range of -20°C to 70°C.

Feature Summary

• Externally driven piezoelectric design for reliable audio signaling
• Fast pulse tone generation optimized for distinct alert identification
• Flange mount configuration ensures secure panel installation
• Wide DC voltage tolerance accommodates various power supply standards

Applications

• Industrial control panel status indication
• Appliance operational alerts
• Medical equipment warning signals
• Automotive dashboard notifications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm electrical characteristics and mechanical dimensions. Ensure the selected variant matches the required voltage rating and acoustic output specifications for the target application environment. Cross-reference the RoHS compliance status if environmental regulations apply to the final product assembly.

Selection Notes

Select this component when external driver circuitry is available and a high-volume, fast-pulse alert is required. Compare against internal drive models if power consumption constraints are critical. Evaluate the 90 dBA output against ambient noise levels to ensure audibility. Confirm that the flange mount style aligns with the enclosure design requirements.

Part Context

This part belongs to the PK/PF series of piezoelectric buzzers manufactured by Mallory Sonalert Products Inc. These devices are engineered for industrial-grade durability and consistent acoustic performance. The series offers various mounting options and tone configurations to suit diverse electronic signaling needs across multiple sectors.

Replacement Considerations

Consult the Mallory Sonalert cross-reference guide for direct substitutes. Verify equivalent parameters such as frequency, decibel output, and mounting style before substitution.