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SC628ER
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Product Detailed Parameters
- Description：BUZZER PIEZO 42.98MM PNL MNT
- Series：SC
- Mfr：Mallory Sonalert Products Inc.
- Package：Bulk
- Driver Circuitry：Indicator, Internally Driven
- Input Type：DC
- Frequency：1.9kHz
- Technology：Piezo
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：55dB @ 6V, 61cm
- Current - Supply：3 ~ 11mA
- Port Location：Top
- Operating Temperature：-30°C ~ 65°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Panel Mount
- Termination：Screw Terminal, Quick Connect Tab - 0.250" (6.35mm)
- Height - Seated (Max)：1.330" (33.77mm)
- Voltage Range：6 ~ 28V
- Size / Dimension：1.692" Dia (42.98mm)
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Overview
The SC628ER is an internally driven piezoelectric buzzer from the Mallory Sonalert SC series, designed for audible alerts and status indication. It operates on a voltage range of 6 to 28 VDC with a rated current of 11 mA. The device produces a continuous tone at frequencies between 1600 Hz and 2200 Hz, achieving sound pressure levels of 55 dBA or 65 dBA depending on specific configuration. It features screw terminal connections and panel mount installation.
Feature Summary
- Internally driven piezoelectric design for direct connection
- Wide operating voltage compatibility from 6V to 28V DC
- Screw terminal termination for secure wiring
- Panel mount style for industrial enclosure integration
Applications
- Industrial equipment status indication
- Control panel alarm signaling
- Medical device audio alerts
- Transportation system warnings
Procurement Notes
Verify the exact frequency and decibel rating against the manufacturer datasheet, as the SC628 series offers multiple variants within the same model prefix. Confirm that the screw terminal interface matches the existing wiring harness requirements. Ensure the operating voltage aligns with the system power supply specifications before procurement.
Selection Notes
Select this component when a reliable, internally driven piezoelectric indicator is required for panel mounting. The wide voltage range allows flexibility in power supply design. Consider the specific acoustic output requirements (55 vs 65 dBA) and frequency tolerance during selection to ensure compliance with safety and operational standards.
Part Context
The SC628ER belongs to the Mallory Sonalert SC series, a long-standing line of piezoelectric buzzers introduced in the 1960s. This series is recognized as a standard for industrial and medical audio indicators. The brand has over a century of history in electronic components, establishing these devices as foundational solutions for audible warning systems across various sectors.
Replacement Considerations
Check for suffix variations such as SC628ERJ or other frequency-specific codes within the SC628 family. Verify that any substitute maintains the same screw terminal type and panel cutout dimensions. Ensure the replacement part meets the same voltage and current ratings for direct interchangeability.
