PK-27N26PSQ Mallory Sonalert Loudspeaker or Buzzer (Other) In Stock
Mallory Sonalert PK-27N26PSQ is a piezoelectric audio indicator buzzer that emits a constant 90 dB tone at 2.5 kHz, operable across a wide 3 V to 28 V DC supply range in a compact 30x10 mm form factor. Ideal for alarm and alert signaling in industrial and consumer equipment.
- Manufacturer
- Mallory Sonalert
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- PK-27N26PSQ Datasheet PDF
- Category
- Loudspeaker or Buzzer
- Price
- From $3.7700(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 3 V to 28 V DC supply range allows direct connection to 5 V, 12 V, or 24 V system rails without additional regulation
- 90 dB sound output at 2.5 kHz provides loud, attention-grabbing constant tone for alarm and alert signaling
- Compact 30x10 mm piezo transducer package simplifies panel mounting in space-constrained enclosures
Applications
The PK-27N26PSQ is used as an audible alert indicator in industrial control panels, medical equipment, and security systems where a loud, constant 90 dB tone at 2.5 kHz is required. Its broad 3 V to 28 V DC operating range makes it compatible with both low-voltage microcontroller outputs and 24 V industrial system buses. The compact 30x10 mm body enables easy panel or PCB mounting in alarms, HVAC controllers, and home automation devices.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What voltage range and sound output does the PK-27N26PSQ piezo buzzer support?
The PK-27N26PSQ operates from 3 V to 28 V DC, producing a constant 90 dB sound pressure level at 2.5 kHz. This wide input voltage range makes it directly compatible with 5 V logic, 12 V automotive, and 24 V industrial control system power supplies without voltage conversion.
In which industrial or consumer applications is the PK-27N26PSQ most commonly used?
The PK-27N26PSQ is well suited for alarm panels, industrial machine fault indicators, medical device alerts, and home security systems. Its 90 dB output at 2.5 kHz ensures audible awareness in noisy environments, and its 3 V to 28 V DC tolerance allows integration into diverse system architectures ranging from battery-powered to mains-bus industrial applications.
What are the physical dimensions of the PK-27N26PSQ and how is it typically mounted?
The PK-27N26PSQ measures 30 mm in diameter and 10 mm in depth, a standard panel-mount form factor for piezo audio indicators. It can be secured through a cutout in a control panel or enclosure, with lead wires connected to the DC supply for continuous constant-tone audible signaling at 90 dB.
How does the constant-tone PK-27N26PSQ differ from intermittent or pulsed audio indicators?
Unlike pulsed or swept-frequency buzzers, the PK-27N26PSQ produces a steady constant tone at 2.5 kHz for as long as supply voltage between 3 V and 28 V DC is applied. This makes it ideal for persistent fault or alarm conditions where continuous 90 dB audio notification is required until the operator takes action to remove power.
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Why Buy from FindMyChip
About Mallory Sonalert
Mallory Sonalert is a leading electronic component manufacturer. FindMyChip sources Mallory Sonalert ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $6.6000 | $6.60 |
| 12+ | $6.0000 | $72.00 |
| 40+ | $5.3000 | $212.00 |
| 65+ | $5.2400 | $340.60 |
| 100+ | $3.7800 | $378.00 |
| 250+ | $3.7700 | $942.50 |
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