PM-80

Overview

The PM-80 is a panel-mount, internally driven piezoelectric alarm manufactured by Floyd Bell Inc. It operates within a voltage range of 5 to 15 VDC and draws 10 to 50 mA. The device produces a continuous sound pattern with a frequency of 2.9 kHz and a sound pressure level of 103 dB at 15V measured at 61 cm. Physical dimensions are approximately 45.72 mm by 27.18 mm with a flange mount and right-angle wire leads. Operating temperature ranges from -20°C to 65°C.

Feature Summary

• Internally driven piezoelectric technology for simplified integration
• Panel mount design with flange and right-angle wire leads
• Continuous sound pattern generation
• Expanded operating voltage range

Applications

• Audio warning devices
• Alarm systems
• Industrial buzzer applications

Procurement Notes

Verify the specific datasheet version for the PM-80 to confirm exact electrical tolerances and mechanical drawings. Ensure the application circuit supports the 10-50 mA current draw and 5-15 VDC input range. Confirm that the panel mount flange dimensions align with the installation requirements. Check for RoHS compliance status if required by project specifications.

Selection Notes

Select the PM-80 when a panel-mounted solution is preferred over PCB mounting. This model is suitable for applications requiring high output volume (103 dB) in a compact form factor. Consider the right-angle wire leads for easier wiring connections compared to through-hole pins. Verify that the 2.9 kHz frequency meets the auditory detection requirements of the target environment.

Part Context

The PM-80 belongs to the Floyd Bell M-80 series of miniature piezo alarms. It shares similar acoustic performance with the M-80 but differs in mounting style. While the M-80 is designed for PC board mounting, the PM-80 features a flange for direct panel installation. Both models utilize internally driven piezoelectric elements to generate audible alerts.

Replacement Considerations

The M-80 serves as a functional substitute if PCB mounting is acceptable instead of panel mounting. No other direct cross-references are publicly confirmed for this specific part number.