UB-09-628-W(F)

Overview

The UB-09-628-W(F) is a panel-mount piezoelectric buzzer manufactured by Floyd Bell Inc. It features an internally driven design with wire leads for connection. The device operates within a supply voltage range of 6 to 28 VDC and draws current between 20 and 50 mA. It produces a beep tone at a frequency of 2.1 kHz (2100 Hz +/- 250 Hz). Acoustic performance includes a sound pressure level of 109 dB @ 28V measured at 61 cm, or 108 dB @ 2 feet. The unit has a diameter of 35.81 mm and functions within a temperature range of -20 to 65 C.

Feature Summary

• Internally driven piezoelectric alarm mechanism
• Panel mount construction with wire leads
• Fast beep tone output
• Environmentally secure solid-state design

Applications

• Industrial equipment status indication
• Control panel audio warnings
• Appliance alert systems
• Security system sirens

Procurement Notes

Verify the specific ordering suffix matches the required termination style and acoustic specifications. Confirm that the operating voltage aligns with the 6-28 VDC range. Ensure the panel cutout dimensions accommodate the 35.81 mm diameter. Cross-reference the manufacturer part number to avoid confusion with similar series variants.

Selection Notes

Select this component when a high-decibel audible warning is required for panel-mounted applications. The internally driven nature simplifies circuit design by eliminating external driver requirements. Consider the 2.1 kHz center frequency for optimal human audibility in noisy environments. Verify thermal tolerance against the operational environment limits.

Part Context

This part belongs to the UB-09 series of piezoelectric alarms from Floyd Bell Inc. It is designed as a direct replacement for legacy audio warning devices requiring robust, solid-state performance. The series offers various mounting options and acoustic outputs tailored for industrial and commercial signaling needs.

Replacement Considerations

Direct substitutes include the UC-09-628-S for similar piezo alarm functionality. Check the UT-09-628-Q for alternative termination styles. Verify pin compatibility and mounting hole alignment before swapping.