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PL-27N25WQ
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Product Detailed Parameters
- Description：BUZZER PIEZO 12V 30MM FLANGE
- Series：PL
- Mfr：Mallory Sonalert Products Inc.
- Package：Bulk
- Driver Circuitry：Indicator, Internally Driven
- Input Type：DC
- Frequency：2.5kHz
- Technology：Piezo
- Operating Mode：Pulse, Slow
- Duration：1.2 PPS
- Sound Pressure Level (SPL)：90dB @ 12V, 30cm
- Current - Supply：15mA
- 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)：0.638" (16.20mm)
- Voltage - Rated：12 V
- Voltage Range：3 ~ 28V
- Size / Dimension：1.181" Dia (30.00mm)
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Overview
The PL-27N25WQ is a piezoelectric audio indicator manufactured by Mallory Sonalert Products Inc. It operates on a rated voltage of 12 VDC with a current consumption of 15 mA. The device produces a continuous tone at a frequency of 2.5 kHz and achieves a sound pressure level of 90 dBA at 12V, measured at 30cm. It features wire lead termination and flange mount installation. Physical dimensions are 30 mm in diameter and 16 mm in height.
Feature Summary
- Internally driven piezoelectric design for direct connection
- Continuous single-tone acoustic output
- Flange mount configuration for secure panel integration
Applications
- Industrial equipment status indication
- Control panel alarm signaling
- Medical device auditory alerts
Procurement Notes
Verify the specific part number against official Mallory Sonalert documentation to ensure compatibility with system voltage requirements. Confirm that the wire lead termination style matches existing harness specifications. Check RoHS compliance status if required by project regulations. Ensure mounting hole dimensions align with the 30 mm diameter flange specification before procurement.
Selection Notes
Select this component when a self-contained, internally driven buzzer is required for 12 VDC systems. The 2.5 kHz frequency provides distinct audibility in moderate noise environments. The flange mount option simplifies installation compared to screw-mount variants. Consider the 90 dBA output level relative to enclosure acoustics and operational distance requirements.
Part Context
This unit belongs to the PK/PL series of piezoelectric indicators from Mallory Sonalert. These devices are designed for reliable operation in industrial and commercial applications. The series offers various frequencies and mounting styles to suit different enclosure designs and acoustic needs.
Replacement Considerations
PK-27N25WQ is a similar flange-mounted variant within the same product family. Verify electrical parameters and physical dimensions before substitution.
