Hydz 4mm Mini Magnetic Smd Buzzer
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, Clocks, Medical equipment, Digital products, Toys, Official equipment, Note computers, Microwave ovens, Air conditioners, Home electronics, Automatic controlling devices.
Handling Notice
1. Please don't touch the component with the bare hand, because electrode maybe corroded.
2. Avoid excessive pulling lead wire because wire may break or soldering point may come off.
3. The circuits utilizes transistor switching, The circuit constants for heft of the transistor are optimally chosen to maintain stable, so please follow it when you design a circuit.
4. Magnetic sounders are driven by an input frequency, the given frequency characteristics can be obtained only when applying 1/2 duty square wave(Vb-p). The end-users must know the facts that the characteristics of frequency may be quite change in different shapes with the applied various waves, like sine wave, square wave (Vb-p) or the other waves.
5. When other voltage are applied than recommended one, the characteristics of frequency will be also changed.
6. Please keep proper distance for strong magnetic field when you storing、transiting and mounting.
Soldering And Mounting
1. Please read of HYDZ specification, if soldering component is needed.
2. Washing of the component is not acceptable, because it is not scaled.
3. 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: Millam meter Amp: Amplifier
Mic.: Measuring Condenser Microphone
DSP: Display Screen
Mic. + Amp. Can be replaced by a SPL meter.
Resistance and capacitor: LCR Meter or Multi-meter. Measuring Condition: 5〜35°C R.H.45〜75%
Judgement Condition: 25±2°C R.H.45〜75%
