PUI Audio 80 dBA Through Hole External 13.5 mm Piezo Buzzer Transducer 24 mm 1 V Min 30V Max

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Packaging Options:
RS Stock No.:
276-857
Mfr. Part No.:
AT-2440-TWT-R
Brand:
PUI Audio
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Brand

PUI Audio

Product Type

Piezo Buzzer Transducer

Mount Type

Through Hole

Minimum Supply Voltage

1V

Maximum Supply Voltage

30V

Sound Level

80dBA

Drive Type

External

Diameter

24mm

Minimum Operating Temperature

-20°C

Maximum Operating Temperature

60°C

Height

13.5mm

Length

24mm

Standards/Approvals

95, RoHS 2002, EC

Termination Style

Tin Plated Red Copper(DSn)

Depth

13.5mm

Maximum Frequency

4500Hz

Minimum Frequency

4000Hz

Supply Current

1mA

COO (Country of Origin):
CN

PUI Audio Piezo Buzzer Transducer, 24mm Diameter, 4000 to 4500Hz Frequency Range - AT-2440-TWT-R


This piezo buzzer transducer provides a Compact audible signalling solution for control panels and equipment in industrial and electronic systems. It operates with an external drive and produces a clear high-frequency tone suited to alerting and indication tasks across automation and electrical installations. The unit is designed for through-hole mounting and offers small form-factor integration where space is constrained.

Features and Benefits:


• High acoustic output 80dBA for audible alerts at 1 m
• Frequency range 4000 to 4500 Hz for a distinct high-frequency tone
• Wide supply range 1 to 30V enabling flexible drive options
• Very low current draw 1 mA to minimise power consumption
• Capacitance 21000 pF for predictable drive characteristics
• Tin-plated copper termination for dependable soldering

Applications


• Suitable for alarm panels requiring a high-pitched alert
• Ideal for industrial control cabinets with limited space
• Used with sensor outputs as an audible status indicator
• Can be used for equipment fault signalling in machinery
• Suitable for electronic prototypes requiring through-hole parts

What mounting method does it require and how does that affect assembly?


It uses through-hole mounting so it can be soldered directly to a PCB or secured with standard panel hardware for a Durable electrical and mechanical connection.

How does temperature affect performance during continuous operation?


The device is rated to operate between -20 to 60 °C, ensuring tone stability and electrical behaviour across typical industrial ambient ranges.

What drive arrangement is needed to produce sound?


An external drive source within 1 to 30V must be provided, the specified capacitance influences the drive circuit’s response and matching components may be required.

How should designers account for power budgeting with this device?


Allow for a nominal supply current of 1 mA when enabled, which is suitable for low-power systems and reduces thermal load on power rails.

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