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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:Pulse, Fast
- Duration:Repeating every 2.5 Sec
- Sound Pressure Level (SPL):85dB @ 9V, 10cm
- Current - Supply: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 SBT12CHPC is a piezoelectric buzzer manufactured by Mallory Sonalert Products Inc., designed for through-hole mounting with a diameter of 44.45mm. It operates on DC input within a voltage range of 9 to 12VDC and draws current between 46mA and 150mA. The device produces a sound pressure level of 90dB at a distance of 10cm, emitting a continuous tone at a frequency of 1.25kHz. Certified under IEC60601-1-8 AMD1 for cardiac melody high-priority applications, it functions reliably in temperatures ranging from -30°C to +65°C.
Feature Summary
- Certified for medical use under IEC60601-1-8 AMD1 standards for high-priority cardiac melodies
- Features internal drive circuitry for direct connection without external oscillators
- Constructed with piezoelectric technology for reliable acoustic output
- Designed for through-hole PCB installation with standard pin termination
Applications
- Medical equipment requiring high-priority cardiac alarm signals
- Hospital patient monitoring systems
- Industrial audio indicators needing specific certification compliance
- General purpose audible alarms where 90dB output is required
Procurement Notes
Verify that the specific order matches the IEC60601-1-8 AMD1 certification requirement, as this component is designated for high-priority cardiac melody applications. Confirm the voltage rating aligns with the system's 9-12VDC supply constraints. Ensure the through-hole package dimensions fit the target PCB layout. Check for any regional distribution restrictions or limited availability status before finalizing procurement plans.
Selection Notes
Select the SBT12CHPC when a certified medical-grade piezoelectric buzzer is required for critical alarm scenarios. Its 90dB output ensures audibility in noisy environments, while the 1.25kHz frequency provides distinct tonal characteristics. The internal driver simplifies circuit design by eliminating the need for external oscillator components. Consider the 44.45mm diameter for panel or board space allocation during the mechanical integration phase.
Part Context
Mallory Sonalert Products Inc. is a recognized manufacturer of audio indicators and alarms, with a history dating back to the early 20th century. The company specializes in Sonalert devices, including medical alarms, industrial panels, and stack lights. The SBT12CHPC belongs to their line of piezoelectric buzzers, which are widely used in industrial, consumer, and medical sectors for reliable sound generation and alerting functions.
Replacement Considerations
Publicly confirmed substitute part numbers for the SBT12CHPC are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative manufacturers. Ensure any replacement meets the same IEC60601-1-8 AMD1 certification requirements for medical applications.
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