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Hydz D14H7 Piezoelectric Transducer - Low Power Sounders from China Suppliers & Factory
Electrical Characteristics
| Part No：HYR-1440A | ||
| 1 | Resonance Frequency (KHz) | 4.0 |
| 2 | Max Input Voltage (Vp-p) | 30 |
| 3 | Capacitance at 120Hz (nF) | 12,000±30% at 100Hz |
| 4 | Sound Output at 10cm (dB) | ≥85 at 4.0KHz Square Wave 12Vp-p |
| 5 | Current Consumption (mA) | ≤8 at 4.0KHz Square Wave 12Vp-p |
| 6 | Operating Temperature (°C) | -20 ~ +70 |
| 7 | Storage Temperature (°C) | -30 ~ +80 |
| 8 | Weight (g) | 0.7 |
| 9 | Housing Material | Black PBT |
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 piezo electric 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 corroded and result in improper operation.
- Be careful not to drop the piezoelectric buzzer.
Frequently Asked Questions (FAQ)
What is the resonance frequency of the HYR-1440A piezoelectric buzzer?
The resonance frequency of the HYR-1440A piezoelectric buzzer is 4.0 KHz.
Can this piezoelectric buzzer be used in outdoor environments?
The HYR-1440A is designed for indoor use. If it must be used outdoors, you must apply appropriate waterproofing measures, as exposure to moisture will prevent normal operation.
What are the recommended soldering specifications for installation?
You should solder the buzzer terminals at a maximum temperature of 350°C (using an 80W max soldering iron tip) within 5 seconds, using a solder that contains silver.
Why should I avoid applying DC bias to the piezoelectric buzzer?
Applying DC bias can lower the insulation resistance of the buzzer, which negatively impacts its overall acoustic performance.
What housing material is used for the HYR-1440A?
The housing of the HYR-1440A piezoelectric buzzer is made of durable Black PBT (Polybutylene Terephthalate).
What are the operating and storage temperature limits?
The operating temperature range is -20°C to +70°C, and the storage temperature range is -30°C to +80°C.