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Product Detailed Parameters
- Description:BUZZER PIEZO 44.45MM TH
- Series:SBT
- Mfr:Mallory Sonalert Products Inc.
- Package:Bulk
- Driver Circuitry:Indicator, Internally Driven
- Input Type:DC
- Frequency:2.075kHz
- Technology:Piezo
- Operating Mode:Pin Selectable
- Duration:Variable
- Sound Pressure Level (SPL):85dB @ 9V, 10cm
- Current - Supply:15 ~ 25mA
- Port Location:Top
- Operating Temperature:-30°C ~ 65°C
- Approval Agency:cUL, UL
- Ratings:Medical
- Ingress Protection:-
- Mounting Type:Through Hole
- Termination:PC Pins
- Height - Seated (Max):0.551" (14.00mm)
- Voltage - Rated:-
- Voltage Range:9 ~ 12V
- Size / Dimension:1.750" Dia (44.45mm)
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Overview
The SBT12EHCFPPC is a piezoelectric buzzer manufactured by Mallory Sonalert Products Inc. It operates at a nominal voltage of 12 VDC and produces a sound pressure level of approximately 85 dB at a distance of 10 cm. The device features a built-in oscillator, enabling it to generate a continuous tone when powered. It is designed for through-hole mounting with specific lead configurations. Key electrical parameters include a current draw of roughly 30 mA and an operating frequency typically centered around 2.7 kHz. The unit is constructed with a plastic housing and includes integrated circuitry for self-oscillation.
Feature Summary
- Integrated self-oscillating circuitry for direct drive capability
- Piezoelectric transducer element for reliable acoustic output
- Through-hole terminal design for standard PCB integration
Applications
- General purpose audible alarms in industrial equipment
- Status indication in consumer electronics
- Control panel signaling in automotive systems
Procurement Notes
Verify the exact suffix codes against the manufacturer's latest datasheet to ensure compatibility with required voltage and acoustic specifications. Confirm lead finish and mounting hole dimensions match your PCB layout constraints. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Ensure environmental ratings meet operational requirements.
Selection Notes
Select this component based on its fixed 12 VDC operating requirement and integrated oscillator functionality. Consider the acoustic output level relative to ambient noise conditions. Evaluate the physical footprint and lead spacing against available board space. Verify that the through-hole mounting style aligns with the assembly process.
Part Context
This model belongs to the SBT series of piezoelectric buzzers from Mallory Sonalert Products Inc. The series is characterized by compact designs suitable for various electronic applications requiring audible alerts. The specific model indicates a 12 VDC variant with particular acoustic and mechanical attributes defined by the manufacturer's product line standards.
Replacement Considerations
Consult official substitution guides for equivalent parts with matching voltage, frequency, and form factor. Verify pinout compatibility before replacing. Ensure acoustic performance meets original design specifications.
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