SNP428 The Mallory Sonalert SNP428 is a piezo buzzer designed for panel mounting. It operates within a 4 to 28 VDC voltage range and produces a sound at 2.9kHz.
Mfr Part #:

SNP428

Available from 1 distributors
Mfr Name: Mallory Sonalert Products
Mallory Sonalert Products
The Mallory Sonalert SNP428 is a piezo buzzer designed for panel mounting. It operates within a 4 to 28 VDC voltage range and produces a sound at 2.9kHz.
Total Stock: 1 pcs
$ Price Range: $0.45

SNP428 Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1 pcs
1 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

SNP428 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Current
Diameter
Driver Circuitry
Frequency
Height
Housing Material
Input Type
Lead Style
Mounting Type
Operating Mode
Operating Temperature
Port Location
Sound Pressure Level (SPL)
Storage Temperature
Technology
Termination
Voltage Range
Weight

SNP428 Description

Short technical summary and product information.

The Mallory Sonalert SNP428 is a piezo buzzer with a panel mount design, suitable for various audible signaling applications. It operates continuously and accepts a wide voltage range from 4 to 28 VDC, drawing between 3 to 18 mA of current.

 

The buzzer emits a sound at a frequency of 2900 ± 500 Hz, with a loudness typically ranging from 69 to 83 dB at 2 feet. The housing is constructed from black Nylon 6/6. It is designed for panel mounting, with a recommended hole size of 1.25 inches (31.75mm), though the threaded front fits a standard 30mm (1.181 inch) hole.

 

Environmental specifications include an operating temperature range of -30°C to +65°C and a storage temperature range of -40°C to +85°C. The component is recognized by UL and features screw terminal or quick connect tab termination.

 

This buzzer is suitable for applications requiring a clear audible alert. Its robust construction and wide operating voltage make it a versatile choice for industrial, commercial, or consumer electronic devices.

SNP428 Quick Information

Product Type: Piezo Buzzer
Canonical Name: Mallory Sonalert SNP428 Piezo Buzzer
Subcategory: Piezo Buzzer

SNP428 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SNP428 Estimated Pricing

Qty Low High
1+ $0.45 $0.45

Estimated market price range - modelled values for guidance only, not live distributor offers.

SNP428 Features

  • Panel mount piezo buzzer design.
  • Wide 4 to 28 VDC voltage range.
  • Continuous mode of operation.
  • Sound level 69 to 83 dB at 2 feet.
  • Operating temperature -30°C to +65°C.

SNP428 Applications

  • Ideal for audible alerts.
  • Suitable for panel integration.
  • Used in various electronic devices.
  • Industrial and commercial applications.

SNP428 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SNP428?

The SNP428 operates from 4 to 28 VDC.

What is the frequency of the SNP428 buzzer?

The nominal frequency is 2900 Hz.

What sound pressure level does the SNP428 produce?

The sound pressure level is 69 to 83 dB typical.

What type of driver circuitry does the SNP428 use?

It uses an internally driven indicator driver.

How is the SNP428 mounted?

It is panel mounted.

What is the current draw of the SNP428?

The current draw is 3 to 18 mA.

What is the operating temperature range?

The operating temperature range is -30°C to +65°C.

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