Hydz D12H5.5 Piezoelectric Sounder - Low Power, Reliable, Quality from China Suppliers & Factory
Electrical Characteristics
| Part No: HYR-12055 | ||
|---|---|---|
| No. | Parameter | Specification |
| 1 | Resonance Frequency (KHz) | 4.0 ± 0.3 |
| 2 | Max Input Voltage (Vp-p) | 25 |
| 3 | Capacitance at 120Hz (nF) | 15 ± 30% |
| 4 | Sound Output at 10cm (dB) | ≥ 80 at 4.0KHz Square Wave 12Vp-p |
| 5 | Current Consumption (mA) | ≤ 2 at 4.0KHz Square Wave 12Vp-p |
| 6 | Operating Temperature (℃) | -20 ~ +70 |
| 7 | Storage Temperature (℃) | -30 ~ +80 |
| 8 | Weight (g) | 0.7 |
| 9 | Housing Material | Black PPO |
Dimensions and Material (Unit: mm)
Tolerance: ±0.5mm Except Specified
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 corrode and result in improper operation.
- ! Be careful not to drop the piezoelectric buzzer.
Frequently Asked Questions
The sound output is ≥80 dB at a 10cm distance when driven by a 4.0KHz square wave at 12Vp-p.
The maximum input voltage is 25 Vp-p. Supplying voltage higher than this rating should be strictly avoided.
Soldering should be performed at a maximum temperature of 350°C (80W maximum iron tip) within 5 seconds using silver-containing solder.
No, do not wash the buzzer with solvents or allow gas penetration during cleaning, as trapped solvent can damage internal components.
It is primarily designed for indoor use. If applied outdoors, adequate waterproofing measures must be implemented to prevent moisture ingress.
The buzzer operates within -20℃ to +70℃, with a storage range of -30℃ to +80℃, and is built with durable Black PPO housing.




















