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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 SBT12EMHCTPC is an internally driven piezoelectric buzzer manufactured by Mallory Sonalert Products Inc. It operates on a DC input voltage range of 9 to 12V and draws current consistent with its internal drive circuitry. The device produces a sound pressure level of 85dB at 9V, measured at a distance of 10cm. It features a threaded terminal connection type and is designed for through-hole mounting. The unit has a diameter of 44.45mm and includes a bracket for secure installation.
Feature Summary
- Internally driven piezoelectric technology for direct signal input
- Bracket-mounted design for stable mechanical attachment
- Threaded terminal connections for reliable electrical interface
Applications
- Medical equipment audio alerts
- Industrial control panel indicators
- General purpose alarm systems
Procurement Notes
Verify the specific suffix configuration against the manufacturer's official datasheet to ensure correct acoustic output and mounting style. Confirm that the required operating voltage aligns with the 9-12V DC specification. Check for any regional compliance certifications such as RoHS or REACH if applicable to your deployment environment. Ensure the mounting hole dimensions match the 44.45mm diameter requirement.
Selection Notes
Select this component when a high-intensity audible alert is required in space-constrained enclosures. The integrated driver simplifies circuit design by eliminating external oscillators. Consider the 85dB output level relative to ambient noise conditions. The bracket mount option provides flexibility compared to panel-only mounts. Verify thermal limits if the device will operate continuously in elevated temperature environments.
Part Context
This part belongs to the SBT series of industrial-grade piezo buzzers from Mallory Sonalert. The series is characterized by robust construction and high sound pressure levels suitable for noisy environments. The SBT12EMHCTPC variant specifically denotes the threaded terminal and bracket mounting configuration within this product line.
Replacement Considerations
Consult the official Mallory Sonalert substitution guide for verified equivalents. Generic replacements may not match the specific acoustic profile or mounting geometry. Ensure any substitute maintains the same internal drive capability and voltage range.
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