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China HYDZ 5mm Mini Magnetic SMD Buzzer - High-Quality Suppliers and Factory for Portable Devices and Medical Instruments
Electrical Characteristics
| Part No. | HYG5020A |
| Rated Voltage (Vp-p) | 3 |
| Operating Voltage (Vp-p) | 2~4.5 |
| Coil Resistance (Ω) | 11±3 |
| Resonant Frequency (Hz) | 4000 |
| Current Consumption (mA/max.) | 110mA at 3V Rated Voltage |
| Sound Pressure Level (dB/min.) | 75dB at 4kHz square wave / 3.0Vp-p / 10cm |
| Operating Temperature (℃) | -20 ~ +60 |
| Storage Temperature (℃) | -30 ~ +80 |
| Environmental Protection Rule | ROHS |
| Housing Material | LCP (black) |
| Leaded Pin Material | Tin Plated Brass (Sn) |
PS: Vp-p = 1/2 duty, square wave
Dimensions and Material
Unit: mm | TOL: ±0.3
Applications
Handling Notice
- Please don't touch the component with the bare hand, because the electrode may be corroded.
- Avoid excessive pulling of the lead wire because the wire may break or the soldering point may come off.
- The circuit utilizes transistor switching. The circuit constants for the transistor are optimally chosen to maintain stable operation, so please follow it when you design a circuit.
- Magnetic sounders are driven by an input frequency. The given frequency characteristics can be obtained only when applying a 1/2 duty square wave (Vp-p). End-users must be aware that frequency characteristics may change significantly with different waveforms, such as sine wave, square wave (Vp-p), or other waves.
- When voltages other than the recommended one are applied, the frequency characteristics will also change.
- Please keep a proper distance from strong magnetic fields during storage, transit, and mounting.
Soldering and Mounting
- Please refer to the HYDZ specification if soldering of the component is required.
- Washing of the component is not acceptable, as it is not sealed.
- Please do not cover the hole with tape or other obstacles, as this will produce irregular operation.
Measuring Circuit and Condition
Input Signal: Rated Signal
S.G: Signal Generator
mA: Milliamp Meter
Amp: Amplifier
Mic.: Measuring Condenser Microphone
DSP: Display Screen
Mic. + Amp: Can be replaced by a SPL meter
Resistance & Capacitor: LCR Meter or Multi-meter
Measuring Condition: 5~35°C, R.H. 45~75%
Judgement Condition: 25±2°C, R.H. 45~75%
Frequently Asked Questions
Q
What is the rated voltage of the HYG5020A magnetic buzzer?
The rated voltage of the HYG5020A is 3 Vp-p, with an operating range of 2 to 4.5 Vp-p. All performance specifications, including sound pressure level and current consumption, are measured at the rated voltage of 3V.
Q
What type of input signal should be used to drive the HYG5020A?
The HYG5020A should be driven with a 1/2 duty square wave (Vp-p) at the resonant frequency of 4000 Hz. Using other waveforms such as sine waves or full-duty square waves may significantly alter the frequency characteristics and acoustic performance.
Q
What is the sound pressure level (SPL) of the HYG5020A?
The minimum sound pressure level is 75 dB, measured at 4 kHz square wave, 3.0 Vp-p, at a distance of 10 cm. This makes it suitable for audible alert applications in a wide range of consumer and industrial devices.
Q
Is the HYG5020A compliant with RoHS environmental regulations?
Yes, the HYG5020A is fully compliant with RoHS (Restriction of Hazardous Substances) regulations. The housing is made of LCP (black) material and the leaded pins are made of Tin Plated Brass (Sn), both meeting environmental protection standards.
Q
Can the HYG5020A be washed after soldering?
No, washing of the HYG5020A is not acceptable after soldering because the component is not sealed. Exposure to cleaning liquids may damage the internal structure and cause malfunction. Please also ensure the sound hole is never covered with tape or any other material.
Q
What are the typical applications for the HYG5020A buzzer?
The HYG5020A is widely used across many industries and product categories, including telephones, clocks, medical equipment, digital products, toys, office equipment, notebook computers, microwave ovens, air conditioners, home electronics, and automatic controlling devices.