PUI Audio 80 dBA Surface External Piezo Buzzer Transducer 2.5 mm 2.5 V Min 10.5 mm 10.5mm 4.5V Max

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Packaging Options:
RS Stock No.:
276-792
Mfr. Part No.:
SMT-1127-S-R
Brand:
PUI Audio
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Brand

PUI Audio

Mount Type

Surface

Product Type

Piezo Buzzer Transducer

Minimum Supply Voltage

2.5V

Maximum Supply Voltage

4.5V

Sound Level

80dBA

Drive Type

External

Maximum Operating Temperature

70°C

Standards/Approvals

REACH, RoHS

Height

2.5mm

Width

10.5mm

Length

10.5mm

Maximum Frequency

3231Hz

Minimum Frequency

2331Hz

COO (Country of Origin):
CN

PUI Audio Piezo Buzzer Transducer, 80dBA Sound Level, 2.5mm Height - SMT-1127-S-R


This piezo buzzer transducer provides an audible signalling function for low-voltage electronic systems, suitable for integration onto circuit boards where Compact sound output is required. It operates as an externally driven buzzer designed for surface-mount assembly and is intended for use in control panels, alarms and notification systems within industrial and commercial equipment.

Features and Benefits:


• Operates from 2.5 to 4.5V enabling low-voltage system compatibility
• Emits 80 dBA sound level for clear audible alerts
• Covers 2331 to 3231 Hz frequency range for high-frequency signalling
• Surface-mount format allows automated PCB placement
• Complies with REACH and RoHS ensuring restricted-substance adherence

Applications


• Suitable for industrial control panel audible alarms
• Ideal for automation system fault indication
• Used for electronic instrumentation status alerts
• Can be used for access control and security notifications
• Used with embedded controllers in mechanical equipment

What mounting process is required for board assembly?


It is supplied for surface-mount installation and is compatible with standard SMT placement and reflow soldering processes.

How does temperature affect operation?


The device is rated to operate at temperatures up to 70 °C without specified performance degradation within that limit.

What footprint considerations should I allow on the PCB?


The component occupies a 10.5 x 10.5mm plan area on the board and requires adequate solder pad geometry for secure attachment.

Can it be driven directly from a microcontroller GPIO?


It requires an external drive, ensure the drive circuit meets the device’s supply voltage range and provides sufficient current for sound output.

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