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PK-27H35PQ
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Product Detailed Parameters
- Description：3-20DC 90-110DB 3500HZ CONT 30X1
- 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)：100dB @ 12V, 30cm
- Current - Supply：18mA
- Port Location：Top
- Operating Temperature：-20°C ~ 70°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Through Hole
- Termination：PC Pins
- Height - Seated (Max)：0.638" (16.20mm)
- Voltage - Rated：12 V
- Voltage Range：2 ~ 20V
- Size / Dimension：1.181" Dia (30.00mm)
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Overview
The PK-27H35PQ is a piezoelectric buzzer from the Mallory Sonalert PK series, designed for industrial audio indication. It operates on a 12 VDC supply with an internal driver circuit and draws 18 mA of current. The device emits a continuous tone at a frequency of 3.5 kHz with a sound pressure level of 100 dBA measured at 30 cm. It features through-hole PC pin termination for PCB mounting and is constructed as a compact indicator suitable for panel or board integration.
Feature Summary
- Internally driven piezoelectric technology for simplified circuit integration
- Continuous tone generation capability for steady-state alerts
- Through-hole PC pin termination for direct printed circuit board mounting
Applications
- Industrial control panel status indication
- Equipment fault signaling systems
- Process monitoring audio alerts
Procurement Notes
Verify the specific suffix PQ against official Mallory Sonalert documentation to confirm terminal type and acoustic specifications. Ensure the operating voltage matches the 12 VDC requirement and that the 100 dBA output meets environmental noise criteria. Confirm RoHS compliance status via the manufacturer datasheet before final procurement approval.
Selection Notes
Select this component when a compact, internally driven piezoelectric indicator is required for PCB assembly. The PK series offers reliable continuous tone generation with low current consumption. Verify that the 3.5 kHz frequency and 100 dBA SPL are appropriate for the target application environment and audible range requirements.
Part Context
This part belongs to the Mallory Sonalert PK series, which provides a range of piezoelectric buzzers for general industrial indication. The series is known for its compact form factor and integrated driver circuits, allowing for straightforward implementation in various electronic devices requiring visual or auditory feedback.
Replacement Considerations
Consult official Mallory Sonalert substitution guides for verified equivalents. Cross-reference electrical parameters such as voltage, current, and frequency to ensure functional compatibility with existing system designs.
