BMT1205H09

Overview

The BMT1205H09 is a 12 mm diameter externally driven magnetic transducer designed for through-hole mounting. It operates at a nominal voltage of 5 V with a current draw of 50 mA. The device produces an acoustic output of 85 dB at 5 V and functions within a frequency range of approximately 2.4 kHz to 2.6 kHz. Constructed with PC pins, it serves as a compact audio indicator suitable for space-constrained electronic assemblies requiring reliable sound generation.

Feature Summary

• Externally driven magnetic transducer design
• Through-hole PC pin mounting configuration
• Compact 12 mm diameter form factor

Applications

• White goods control panels
• Durables appliance indicators
• General purpose audio alerts

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as BMT1205H09-08 or BMT1205H09 LF may exhibit differences in drive voltage specifications or frequency tolerances. Confirm that the required operating parameters align with the exact part number variant selected from the manufacturer's documentation to ensure compatibility with the target circuit design.

Selection Notes

Select this component for applications requiring a low-profile, magnetically driven buzzer with standard through-hole integration. Ensure the driving circuit can supply the specified 50 mA current at 5 V. Consider the 85 dB acoustic output level against ambient noise requirements and verify that the 12 mm diameter fits within the available enclosure space constraints.

Part Context

BeStar Technologies manufactures electro-acoustic components including magnetic buzzers and sensors. This model belongs to their line of durable audio indicators intended for consumer electronics and home appliances. The company specializes in custom acoustic solutions, positioning this transducer as a standard off-the-shelf option for basic alerting functions.

Replacement Considerations

Cross-reference with BeStar part numbers like BMT1205H09-08 or BMT1205H09 LF if minor parameter variations are acceptable. Verify mechanical footprint and electrical ratings before substituting with non-BeStar magnetic buzzers to maintain performance consistency.