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PT-1140PEQ
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Product Detailed Parameters
- Description：BUZZER PIEZO 9V 12MM TH
- Series：PT
- Mfr：Mallory Sonalert Products Inc.
- Package：Bulk
- Driver Circuitry：Transducer, Externally Driven
- Input Type：Peak-Peak Signal
- Frequency：4kHz
- Technology：Piezo
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：85dB @ 9V, 10cm
- Current - Supply：7mA
- Port Location：Top
- Operating Temperature：-20°C ~ 60°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Through Hole
- Termination：PC Pins
- Height - Seated (Max)：0.217" (5.50mm)
- Voltage - Rated：9 V
- Voltage Range：9 ~ 20V
- Size / Dimension：0.472" Dia (12.00mm)
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Overview
The PT-1140PEQ is an externally driven piezoelectric transducer manufactured by Mallory Sonalert Products Inc. It operates at a nominal voltage of 9 V with a current draw of 7 mA. The device generates an acoustic signal at a frequency of 4 kHz and achieves a sound pressure level of 85 dB when measured at a distance of 10 cm under the specified voltage conditions. This component utilizes through-hole PC pin termination for circuit board integration.
Feature Summary
- Externally driven piezoelectric design requiring external drive circuitry
- Through-hole PC pin termination for printed circuit board mounting
Applications
- Audible alarm systems
- Electronic indicator circuits
- Transducer modules in consumer electronics
Procurement Notes
Verify the specific electrical requirements against the official datasheet before procurement, as this is an externally driven transducer requiring appropriate drive signals. Confirm that the through-hole PC pin configuration matches the target PCB layout. Ensure the operating voltage and frequency align with the system design specifications to guarantee proper acoustic output performance.
Selection Notes
Select this component when an externally driven piezoelectric solution is required rather than a self-contained buzzer. Consider the 85 dB sound pressure level at 10 cm for audibility needs. Evaluate the 4 kHz frequency for tone characteristics suitable for the intended application environment. Verify compatibility with the available drive circuitry on the host board.
Part Context
This part belongs to the Mallory Sonalert portfolio of audible warning devices. The manufacturer specializes in industrial, medical, and consumer audio indicators. The PT-1140PEQ represents a fundamental transducer element within their broader ecosystem of alarms and sensors, designed for integration into custom electronic assemblies.
Replacement Considerations
Mallory Sonalert provides cross-reference sheets for obsolete components. Consult official documentation for verified substitutes. No direct substitute part numbers are confirmed in the provided source material.
