— IC芯片 | 连接器 | 传感器 | 被动器件 —
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 @ 3.3V, 10cm
- Current - Supply:35mA
- 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)
Download product information
Overview
The SBT5THPC is a through-hole piezoelectric buzzer from the Mallory Sonalert SBT5 series. It features an internally driven design with PC pin termination and top porting. The unit operates within a voltage range of 3.3V to 5VDC, drawing a supply current of 35mA. It produces a sound pressure level of 85dB at 3.3V measured at 10cm distance. The operating frequency is 2.075kHz, and it functions reliably across a temperature range of -30°C to +65°C.
Feature Summary
- Internally driven piezoelectric mechanism for simplified circuit integration
- Through-hole mounting with PC pins for standard board assembly
- Top-ported acoustic output design
- Operates on low DC voltage supplies between 3.3V and 5V
Applications
- Industrial control panel status indicators
- Medical device audio alerts
- Consumer appliance signaling
- General purpose electronic equipment alarms
Procurement Notes
Verify the specific suffix configuration against the manufacturer datasheet to ensure correct acoustic tone and electrical characteristics. Confirm RoHS compliance status and lead times with authorized distributors, as availability may vary by region. Ensure PCB footprint matches the specified through-hole pin spacing before ordering.
Selection Notes
Select this component when an internally driven solution is required to reduce external driver complexity. The 85dB SPL provides adequate audibility for general industrial environments. Verify that the 3.3V to 5VDC operating range aligns with the target system power supply rails and that the 35mA current draw is supported by the driving circuit.
Part Context
This part belongs to the SBT5 series of audio indicators manufactured by Mallory Sonalert Products Inc. The series offers various acoustic tones and voltage ratings tailored for different industrial and commercial applications. The SBT5THPC specifically addresses needs for reliable, low-voltage audible signaling in compact electronic assemblies.
Replacement Considerations
Consult official Mallory Sonalert documentation for direct cross-references. Evaluate alternative SBT5 variants with matching voltage and SPL requirements if exact substitutes are unavailable.
ChipApex | Global Electronic Components Supplier









