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PK-20A35EWQ
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Product Detailed Parameters
- Description：BUZZER PIEZO 12V 28MM FLANGE
- Series：PK
- Mfr：Mallory Sonalert Products Inc.
- Package：Bulk
- Driver Circuitry：Indicator, Internally Driven
- Input Type：DC
- Frequency：3.5kHz
- Technology：Piezo
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：95dB @ 12V, 30cm
- Current - Supply：10mA
- 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)：0.992" (25.20mm)
- Voltage - Rated：12 V
- Voltage Range：3 ~ 24V
- Size / Dimension：1.102" Dia (28.00mm)
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Overview
The PK-20A35EWQ is a piezoelectric audible alarm from the Mallory Sonalert PK series. It operates on a continuous tone at a frequency of 3.5 kHz with a sound pressure level of 95 dBA. The device is rated for 3 to 24 VDC input and draws 10 mA current. It features wire lead termination and flange mount installation. Physical dimensions are 28 mm diameter by 25 mm height.
Feature Summary
- Piezoelectric technology for reliable acoustic output
- Continuous tone generation capability
- Wide DC voltage operating range
- Flange mount design for secure panel integration
Applications
- Industrial machinery status indication
- Control panel alarm signaling
- Equipment fault detection alerts
- Safety system auditory warnings
Procurement Notes
Verify the exact suffix against the manufacturer datasheet to confirm electrical ratings and mounting style. Ensure the wire lead configuration matches the system interface requirements. Confirm RoHS compliance status if required by specific regulatory standards. Cross-reference the part number with official Mallory Sonalert documentation to avoid substitution errors.
Selection Notes
Select this component when a compact, high-intensity audible indicator is needed for industrial environments. The 95 dBA output ensures audibility in noisy settings. The wide voltage tolerance simplifies power supply design across various DC systems. Consider the physical size constraints and mounting method compatibility before finalizing the design.
Part Context
This part belongs to the Mallory Sonalert PK series, known for robust piezoelectric buzzers. The series offers various frequencies and mounting options. The PK-20A35EWQ specifically provides a standard 3.5 kHz tone suitable for general alerting purposes. It is designed for durability in demanding operational conditions.
Replacement Considerations
Direct substitutes include PK-20A35EW and PFD-20A35EWQ. Verify that alternative parts match the 3.5 kHz frequency and 95 dBA sound level. Ensure the replacement supports the same 3-24 VDC operating range and wire lead termination style.
