ST-0402T Soberton ST-0402T is a surface mount magnetic buzzer with rated voltage 3V, frequency 4kHz, and 70dB sound output at 10cm.
Mfr Part #:

ST-0402T

Available from 1 distributors
Mfr Name: Soberton Inc.
Soberton Inc.
Soberton ST-0402T is a surface mount magnetic buzzer with rated voltage 3V, frequency 4kHz, and 70dB sound output at 10cm.
Total Stock: 4 pcs
$ Price Range: $2.64 - $5.01

ST-0402T Available from 1 distributor

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ST-0402T Specifications Quick View

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

ST-0402T Description

Short technical summary and product information.

The Soberton ST-0402T is a surface-mount magnetic buzzer designed for audible indication in compact electronic devices. It operates at a rated voltage of 3V with an operating range of 2 to 4V and draws a maximum current of 90mA under 1/2 duty square wave conditions. The buzzer produces a 4kHz single tone with a sound pressure level of 70dB measured at 10cm.

 

This externally driven transducer requires an external drive circuit and accepts a zero-peak signal input. The coil resistance is 17 ±3 Ω, and the device is suitable for applications requiring a clear, consistent tone in a small footprint.

 

The buzzer measures 4.00mm x 4.00mm x 2.00mm and weighs 0.1g. It features a black LCP housing with a top port and solder pad termination for surface mount assembly. It is RoHS compliant and operates over a temperature range of -30°C to 70°C, with storage from -40°C to 85°C.

ST-0402T Quick Information

Product Type: Magnetic Buzzer
Series: ST
Canonical Name: Soberton ST-0402T Magnetic Buzzer
Subcategory: Magnetic Buzzer

ST-0402T Compliance

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

ST-0402T Estimated Pricing

Qty Low High
1+ $5.01 $5.01
10+ $3.94 $3.94
25+ $3.59 $3.59
50+ $3.35 $3.35
100+ $3.23 $3.23
3,000+ $2.64 $2.64

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

ST-0402T Features

  • Magnetic transducer with external drive circuit.
  • Rated for 3V operation at 4kHz.
  • 70dB sound pressure level at 10cm.
  • Surface mount package 4x4x2mm.
  • RoHS3 compliant per datasheet.

ST-0402T Applications

  • Audible alerts in portable devices.
  • Indicator tones in consumer electronics.
  • Warning buzzers in automotive panels.
  • User feedback in industrial controls.
  • Signal tones in medical equipment.

ST-0402T FAQs

6 frequently asked questions generated from this part’s specifications.
What is the rated voltage of the ST-0402T?

The rated voltage is 3V with an operating range of 2 to 4V.

What is the sound output level of this buzzer?

The sound pressure level is 70dB measured at 10cm at rated voltage.

What type of drive circuit does the ST-0402T require?

It is a transducer requiring an external drive circuit (externally driven) and accepts a zero-peak signal input.

What is the mounting style and package size?

It is a surface mount device with solder pad terminals in a 4.00mm x 4.00mm x 2.00mm LCP housing.

What is the operating temperature range?

The operating temperature range is -30°C to 70°C as per the datasheet.

Is the ST-0402T RoHS compliant?

Yes, the datasheet indicates RoHS compliance.

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