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China Suppliers Factory Hydz D17H8 Piezo External Drive Sounder - Low Power, Reliable, and Cost-Efficient Solution
Electrical Characteristics
| Part No：HYR-1708 | ||
| 1 | Resonance Frequency (KHz) | 4.5±500 square wave |
| 2 | Max Input Voltage (Vp-p) | 16 |
| 3 | Capacitance at 120Hz (nF) | 15,000±30% at 120Hz |
| 4 | Sound Output at 10cm (dB) | ≥80 at 4.0KHz Square Wave 12Vp-p |
| 5 | Current Consumption (mA) | ≤8 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 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 corrode and result in improper operation.
- Be careful not to drop the piezoelectric buzzer.
Frequently Asked Questions
Q What is the resonance frequency of the HYR-1708 piezoelectric buzzer?
The HYR-1708 has a resonance frequency of 4.5 KHz (±500 Hz), driven by a square wave signal. This frequency range makes it suitable for alert tones and notification applications.
Q What is the maximum input voltage for the HYR-1708?
The maximum input voltage for the HYR-1708 is 16 Vp-p. Exceeding this voltage may damage the buzzer or degrade its performance. Always operate within the specified voltage range.
Q Can the HYR-1708 piezoelectric buzzer be used outdoors?
The HYR-1708 is designed for indoor use only. If outdoor deployment is required, adequate waterproofing measures must be applied, as exposure to moisture can cause the buzzer to malfunction or fail.
Q What are the operating and storage temperature ranges of the HYR-1708?
The HYR-1708 operates within a temperature range of -20°C to +70°C. For storage, the acceptable range is -30°C to +80°C. Operating or storing outside these ranges may affect reliability and performance.
Q What soldering conditions are recommended for the HYR-1708?
Soldering should be performed at a maximum temperature of 350°C (80W max.) using a soldering iron tip, and completed within 5 seconds. It is recommended to use a solder containing silver to ensure a reliable connection.
Q What is the sound output level of the HYR-1708 and how is it measured?
The HYR-1708 delivers a sound output of ≥80 dB measured at a distance of 10 cm, under a 4.0 KHz square wave input at 12 Vp-p. The current consumption under these same conditions is ≤8 mA.