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China HYDZ 4mm Mini Magnetic SMD Buzzer - 4000Hz Frequency, Medical Instrument Use, Reliable Suppliers & Factory
Electrical Characteristics
| Part No. | HYG4020A |
| Rated Voltage (Vp-p) | 3 |
| Operating Voltage (Vp-p) | 2~4 |
| Coil Resistance (Ω) | 17±3 |
| Resonant Frequency (Hz) | 4000 |
| Current Consumption (mA/max.) | 90mA at Rated Voltage |
| Sound Pressure Level (dB/min.) | 70dB 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＝1/2duty , square wave
Dimensions and Material
Applications
- Telephone and Clocks
- Medical equipment and Digital products
- Toys and Official equipment
- Note computers and Microwave ovens
- Air conditioners and Home electronics
- Automatic controlling devices
Handling Notice
- Please don't touch the component with the bare hand, because electrode maybe corroded.
- Avoid excessive pulling lead wire because wire may break or soldering point may come off.
- The circuits utilizes transistor switching; please follow the optimal design for stable performance.
- Magnetic sounders are driven by input frequency; characteristics are based on 1/2 duty square wave (Vb-p).
- Frequency characteristics will change if non-recommended voltages are applied.
- Keep proper distance from strong magnetic fields during storage, transit, and mounting.
Soldering And Mounting
- Please refer to HYDZ specification if soldering is required.
- Washing is not acceptable as the component is not sealed.
- Do not cover the hole with tape or obstacles to avoid irregular operation.
Measuring Circuit and Condition
Input Signal: Rated Signal
S.G: Signal Generator | mA: Millam meter Amp: Amplifier
Mic.: Measuring Condenser Microphone | DSP: Display Screen
Note: Mic. + Amp. can be replaced by a SPL meter. Resistance/capacitor measured by LCR Meter.
Measuring Condition: 5〜35°C R.H.45〜75% | Judgement Condition: 25±2°C R.H.45〜75%
Frequently Asked Questions (FAQ)
Q1: What is the standard operating voltage for the HYG4020A?
A: The rated voltage is 3Vp-p, with an operating voltage range between 2Vp-p and 4Vp-p.
Q2: Can I wash this component after soldering?
A: No, washing is not acceptable because the component is not sealed.
Q3: What is the resonant frequency of this magnetic sounder?
A: The resonant frequency is 4000Hz.
Q4: Is the HYG4020A compliant with environmental regulations?
A: Yes, it follows ROHS environmental protection rules.
Q5: What materials are used for the housing and pins?
A: The housing is made of black LCP, and the leaded pins are made of Tin Plated Brass (Sn).
Q6: What are the storage temperature limits?
A: The component can be safely stored in temperatures ranging from -30℃ to +80℃.