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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 SBT12TMCFPPC is an internally driven piezoelectric buzzer manufactured by Mallory Sonalert Products Inc. It operates within a voltage range of 9 to 12 VDC and draws a current between 15 and 25 mA. The device produces a sound pressure level of 85 dB at 9 VDC measured at a distance of 10 cm, with a resonant frequency of approximately 2.075 kHz. It features through-hole PC pin termination and has a maximum seated height of 14.00 mm (0.551 inches). The component is rated for medical applications and is supplied in bulk packaging.
Feature Summary
- Internally driven piezoelectric design for simplified circuit integration
- Medical application rating compliant with industry standards
- Through-hole mounting via PC pins for secure panel or board attachment
Applications
- Medical equipment alarm systems
- Industrial control panel indicators
- Consumer electronics audio alerts
Procurement Notes
Verify the specific suffix configuration against the official Mallory Sonalert datasheet to ensure correct acoustic and electrical characteristics. Confirm that the through-hole package dimensions match the target PCB footprint. Check for any RoHS compliance documentation required for the specific manufacturing batch. Ensure the operating voltage range aligns with the system power supply specifications before procurement.
Selection Notes
Select this component when an internally driven solution is required to reduce microcontroller load. The 85 dB output provides clear audible indication in moderate noise environments. The medical rating makes it suitable for healthcare devices requiring reliable alert signals. Consider the 14 mm height constraint for enclosure design. Verify compatibility with standard 9-12 VDC power rails commonly found in industrial and medical systems.
Part Context
Mallory Sonalert Products Inc. is a recognized manufacturer of audio indicators and alarms, established as a leader in electronic warning devices since the mid-20th century. The company is known for its Sonalert brand, offering a wide range of piezoelectric and electromagnetic buzzers, sirens, and speakers. The SBT series represents their internally driven piezoelectric line, designed for reliability and ease of use in various industrial and medical applications.
Replacement Considerations
Consult the official Mallory Sonalert replacement guide for direct equivalents. Verify that any substitute part matches the 9-12 VDC operating range, 85 dB SPL at 10 cm, and 2.075 kHz frequency. Ensure the replacement maintains the same through-hole PC pin configuration and medical rating if applicable.
FAQ
Is the SBT12TMCFPPC internally or externally driven?
It is an internally driven piezoelectric buzzer, meaning it contains the necessary driving circuitry and can be activated directly by applying the specified DC voltage.
What is the maximum seated height of this buzzer?
The maximum seated height is 14.00 mm (0.551 inches).
At what distance is the 85 dB sound pressure level measured?
The 85 dB sound pressure level is measured at a distance of 10 cm from the buzzer.
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