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HYDZ Piezoelectric Sounder Melody Buzzer - Low Frequency 2kHz, Waterproof, China Suppliers & Factory
⚡ Electrical Characteristics
| 1 | Rated Voltage (VAC) | 16V |
| 2 | Operating Voltage (V) | 1～25 |
| 3 | Sound Output at 10cm (dB) | ≥75 |
| 4 | Current Consumption (mA) | ≤4 |
| 5 | Resonant Frequency (Hz) | 2000±500 |
| 6 | Operating Temperature (℃) | -20～＋80 |
| 7 | Housing Material | PPO |
| 8 | Weight (g) | 8.0 |
📐 Dimensions and Material (unit: mm)
Tolerance: ±0.5mm Except Specified
✅ Features
- Low frequency tone (2kHz).
- Piezo element is coated with water proof processing.
⚠️ Notice (HANDLING)
- Do not apply DC bias to the piezoelectric buzzer; otherwise insulation resistance may become low and affect the performance.
- Do not supply any voltage higher than applicable to the piezoelectric buzzer.
- Do not use the piezoelectric buzzer outdoors. It is designed for indoor use. If the piezoelectric buzzer has to be used outdoors, provide it with waterproofing measures; it will not operate normally if subjected to moisture.
- Do not wash the piezoelectric buzzer with solvent or allow gas to enter it while washing; any solvent that enters it may stay inside a long time and damage it.
- A piezoelectric ceramic material of approximately 100µm thick is used in the sound generator of the buzzer. Do not press the sound generator through the sound release hole otherwise the ceramic material may break. Do not stack the piezoelectric buzzers without packing.
- Do not apply any mechanical force to the piezoelectric buzzer; otherwise the case may deform and result in improper operation.
- Do not place any shielding material or the like just in front of the sound release hole of the buzzer; otherwise the sound pressure may vary and result in unstable buzzer operation. Make sure that the buzzer is not affected by a standing wave or the like.
- Be sure to solder the buzzer terminal at 350°C max. (80W max.) (soldering iron tip) within 5 seconds using a solder containing silver.
- Avoid using the piezoelectric buzzer for a long time where any corrosive gas (H2S, etc.) exists; otherwise the parts or sound generator may be corroded and result in improper operation.
- Be careful not to drop the piezoelectric buzzer.
🙋 Frequently Asked Questions (FAQ)
Q
What is the rated voltage of this piezoelectric buzzer?
The rated voltage of this piezoelectric buzzer is 16V AC, with an operating voltage range of 1V to 25V to ensure reliable performance across a wide range of applications.
Q
What is the resonant frequency of this buzzer?
The resonant frequency is 2000 Hz (±500 Hz), which falls in the low-frequency tone range (2kHz), making it clearly audible in most indoor environments.
Q
Is this piezoelectric buzzer waterproof and suitable for outdoor use?
The piezo element is coated with a water-proof processing layer; however, this buzzer is designed primarily for indoor use. If outdoor use is required, additional waterproofing measures must be applied, as moisture can affect normal operation.
Q
What is the operating temperature range of this buzzer?
This piezoelectric buzzer operates reliably within a temperature range of -20°C to +80°C, making it suitable for a wide variety of indoor electronic applications.
Q
Can I apply DC voltage to this piezoelectric buzzer?
No. Applying DC bias to the piezoelectric buzzer is not recommended, as it may lower the insulation resistance and negatively affect performance. Always use the buzzer within the specified AC operating voltage range.
Q
What soldering requirements should be followed when installing the buzzer?
When soldering the buzzer terminals, use a soldering iron at a maximum temperature of 350°C (80W max.) and complete the soldering within 5 seconds. It is also recommended to use a solder containing silver for best results.