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รายละเอียดสินค้า

Buzzer 3V (SOT plastic package) active buzzer long sound   

  • Product model: YHE12-03ST 3V
  • Product size:12 x 9.5mm
  • Rated voltage 3.0V
  • Sound Pressure Level=SPL Min 85dB
  • Oscillation frequency 2400±400Hz 

 

Knowledge literacy:
Nowadays, many people are not very clear about the concept of active buzzer and passive buzzer. Here is a brief introduction.
I hope it will be helpful to everyone in the future.

Note that the "source" here does not refer to the power source.It refers to the source of the shock.

The characteristics of passive buzzer are:
1 There is no oscillator inside the passive, so if a DC signal is used, it cannot be made to scream.
  Must use 2K~5K square wave to drive it
2 The frequency of the sound is controllable, and the effect of "multi-leaf Solaxi" can be made.
3 In some special cases,

the characteristics of the active buzzerthat can be multiplexed with the LED for a control portare:
1 The active buzzer has an internal oscillation source, so it will beep as long as it is powered on
2 The program control is convenient. The single-chip microcomputer can make a sound with a high and low level, but the passive buzzer cannot. 
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Exchange or return policy



Every item comes with a 30-day warranty. However, there are certain conditions that apply:

  1. The customer should not be responsible for any self-inflicted damage, such as incorrect power connections (for example, supplying 5V instead of the required 3.3V for a sensor).

  2. The product must be in perfect condition, without any breakage or damage caused by electricity (e.g., short circuits leading to electrical fires).

  3. The store does not accept product exchanges due to customer misunderstandings, such as purchasing the wrong size for their project or buying something without eventually using it. Customers can inquire about the product details and ensure compatibility before making a purchase by contacting us through our Line account @modulemore during business hours. Please note that there may be delays in response between 12:00 PM and 2:00 PM.

Return Policy: To initiate a product return, customers must provide the original receipt or a copy for quick verification. Returns can be sent to our store address by following these guidelines:

  1. Provide a detailed description of the damaged item(s).
  2. Mention any tests or experiments conducted by the customer.

Please note that the store reserves the right to make the final decision regarding product replacement or refund.

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Last updatedSep 5, 2025

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Arduino compatible board, Iot, ESP32, ESP8266, Nodemcu, Raspberry pi, micro:bit and etc.
Mobile number : 0831710868
E-mail : paheyisoicus@gmail.com
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