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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 @ 3.3V, 10cm
- Current - Supply:15 ~ 30mA
- 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 Range:3.3 ~ 5V
- Size / Dimension:1.750" Dia (44.45mm)
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Overview
The SBT5DMHMPPC is an internally driven piezoelectric buzzer manufactured by Mallory Sonalert Products Inc. It operates within a voltage range of 3.3 to 5 VDC and produces a sound pressure level of 85 dB at 3.3 VDC measured at a distance of 10 cm. The device features a resonant frequency of 2.075 kHz and draws between 15 and 30 mA during operation. Designed for through-hole mounting, it utilizes PC pins for board integration. The unit is RoHS compliant and lead-free, suitable for medical applications as indicated by its ratings.
Feature Summary
- Internally driven piezoelectric design for simplified circuit integration
- Medical application rating for specialized healthcare environments
- Through-hole mounting with PC pin termination
Applications
- Medical equipment audio signaling
- Industrial control panel alerts
- Consumer electronics status indicators
Procurement Notes
Verify the specific operating voltage requirements against your system design, as the component supports a range from 3.3V to 5VDC. Confirm that the 85dB acoustic output meets regulatory standards for your intended environment. Ensure PCB layout accommodates the through-hole footprint and that the 15-30mA current draw is supported by your power supply rails without exceeding thermal limits.
Selection Notes
Select this component when a self-contained audible alert is required without external driver circuits. The internal drive capability reduces bill of materials complexity. Consider the 2.075 kHz frequency for optimal human audibility. Verify that the through-hole form factor aligns with your manufacturing process and that the medical rating satisfies industry compliance requirements for sensitive equipment.
Part Context
This part belongs to the SBT5 series of piezoelectric buzzers from Mallory Sonalert. The series offers various acoustic outputs and mounting options. The SBT5DMHMPPC variant specifically targets medical and industrial sectors requiring reliable, high-decibel signaling in a compact through-hole package. It represents a standard solution for embedded audio indication tasks.
Replacement Considerations
Consult official Mallory Sonalert documentation for direct cross-references. Alternative parts must match the 3.3-5VDC operating range, 2.075 kHz frequency, and through-hole mounting style. Verify that any substitute maintains the 85dB acoustic output and medical rating if applicable.
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