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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 SBT12VLMFPPC is an internally driven piezoelectric buzzer manufactured by Mallory Sonalert Products Inc. It operates within a voltage range of 9 to 12 VDC and produces a sound pressure level of 85 dB at 9 V measured from a distance of 10 cm. The device functions at a frequency of approximately 2.075 kHz with a current draw between 15 and 25 mA. It features a round shape with a diameter of 44.45 mm (1.75 inches) and a height of 15 mm. The unit utilizes PC pin termination for PCB mounting and supports an operating temperature range from -30°C to +65°C.
Feature Summary
- Internally driven piezoelectric technology for simplified circuit integration
- PCB mount configuration using PC pins for secure board attachment
- Round housing design suitable for standard panel or board installations
Applications
- Medical equipment status indicators
- Industrial control panel alerts
- Consumer appliance signaling
Procurement Notes
Verify the specific suffix and voltage rating against the official Mallory Sonalert datasheet to ensure compatibility with the target application's power supply. Confirm that the PC pin pitch matches the printed circuit board layout. Check for RoHS compliance documentation if required by regulatory standards. Ensure the operating temperature range meets the environmental conditions of the final assembly.
Selection Notes
Select this component when an internally driven, high-output audible alert is required for PCB-mounted designs. The 85 dB output provides clear indication in moderate noise environments. Consider the 15-25 mA current consumption for battery-powered applications. The 9-12 VDC operating range offers flexibility for various power systems. Verify mechanical dimensions against available space constraints on the circuit board.
Part Context
This part belongs to the Mallory Sonalert audio indicator family, which specializes in piezoelectric buzzers and sirens. The SBW and SBT series are commonly used in industrial and medical applications requiring reliable audible alerts. Mallory Sonalert products are known for their durability and consistent acoustic performance across varying temperatures and voltages.
Replacement Considerations
Direct substitutes may include other internally driven piezo buzzers with similar 85 dB SPL and 9-12 VDC ratings. Verify pinout compatibility and mechanical footprint before substitution. Consult Mallory Sonalert for cross-reference recommendations to ensure equivalent acoustic and electrical performance.
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