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Hydz 4mm Mini Magnetic Smd Buzzer

Short Description:

Features:

1. HYDZ 4*4*2mm classic smd type with 3V rated voltage selection

2. With 4000HZ frequency square wave input

3. Good sound pressure level consistency

4. Utilization in medical instrument


Product Detail

Product Tags

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

4020A 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%

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