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PT-520-SQ
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Product Detailed Parameters
- Description：BUZZER PIEZO 5V 41X14MM FLANG
- Series：PT
- Mfr：Mallory Sonalert Products Inc.
- Package：Bulk
- Driver Circuitry：Transducer, Externally Driven
- Input Type：Peak-Peak Signal
- Frequency：4.4kHz
- Technology：Piezo
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：85dB @ 5V, 10cm
- Current - Supply：3mA
- Port Location：Top
- Operating Temperature：-20°C ~ 70°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Panel Mount, Flange
- Termination：Wire Leads
- Height - Seated (Max)：1.437" (36.50mm)
- Voltage - Rated：5 V
- Voltage Range：1 ~ 30V
- Size / Dimension：1.614" L x 0.551" W (41.00mm x 14.00mm)
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Overview
The PT-520-SQ is a passive piezoelectric buzzer manufactured by Mallory Sonalert Products Inc. It operates within a temperature range of -20°C to +70°C and requires external driving circuitry. The unit features a flanged design with dimensions of 41mm x 14mm, suitable for panel mounting applications where compact audio indication is required.
Feature Summary
- Passive piezoelectric technology requiring external drive signals
- Flanged mechanical design for secure panel installation
- Compact rectangular form factor
Applications
- Industrial control panels
- Consumer appliance status indicators
- Transportation equipment signaling
Procurement Notes
Verify the specific operating frequency and voltage requirements against your external driver circuit capabilities before procurement. Confirm that the passive nature of this component aligns with your system architecture, as it does not contain internal oscillators. Ensure mechanical clearance matches the 41mm x 14mm footprint and flange specifications.
Selection Notes
Select this component when an externally driven acoustic signal is preferred over active buzzers. Consider the -20°C to +70°C operational range for environmental suitability. The flanged mount simplifies assembly compared to bracket-mounted alternatives. Evaluate if the passive requirement fits your microcontroller or driver IC output capabilities.
Part Context
This part belongs to the broader Mallory Sonalert portfolio of audio indicators. Unlike their active Sonalert series which integrate internal drivers, this model represents the passive segment designed for systems with dedicated signal generation hardware. It complements their range of industrial and medical alerting devices.
Replacement Considerations
Direct replacements must match the passive piezoelectric characteristic and 41x14mm flanged dimensions. Verify that substitute parts support the same operating temperature range of -20°C to +70°C. Ensure the replacement maintains compatibility with the existing external drive circuitry frequencies.
