0102030405
HYDZ 4mm Mini Magnetic SMD Buzzer - 4000Hz, 3V, Ideal for Medical Instruments - China 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 ＝ 1/2 duty, 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
- 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. The circuit constants for heft of the transistor are optimally chosen to maintain stable, 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 1/2 duty square wave (Vb-p). The end-users must know the facts that the characteristics of frequency may be quite changed in different shapes with the applied various waves, like sine wave, square wave (Vb-p) or other waves.
- When other voltages are applied than the recommended one, the characteristics of frequency will also be changed.
- Please keep proper distance from strong magnetic fields when storing, transiting, and mounting.
Soldering And Mounting
- Please read the HYDZ specification if soldering of the component is needed.
- Washing of the component is not acceptable, because 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
Note:Mic. + Amp. can be replaced by a SPL meter
R & C: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
QWhat is the rated voltage of the HYG4020A magnetic buzzer?
AThe rated voltage of the HYG4020A is 3 Vp-p, with an operating range of 2~4 Vp-p. It is important to apply the correct voltage to maintain stable frequency characteristics and avoid performance degradation.
QWhat type of input signal should be used to drive the HYG4020A?
AThe HYG4020A should be driven by a 1/2 duty square wave (Vp-p) at the rated frequency of 4000 Hz. Using other waveforms such as sine waves or full-duty square waves may significantly alter the frequency characteristics and sound output.
QWhat is the sound pressure level (SPL) of the HYG4020A?
AThe minimum sound pressure level is 70 dB, measured at 4 kHz square wave, 3.0 Vp-p, at a distance of 10 cm. This makes it suitable for alert and notification applications in consumer and industrial electronics.
QIs the HYG4020A RoHS compliant?
AYes, the HYG4020A complies with RoHS environmental protection regulations. The housing is made of LCP (black) material and the leaded pins are made of Tin Plated Brass (Sn), ensuring compliance with hazardous substance restrictions.
QCan the HYG4020A be washed or cleaned after soldering?
ANo, washing of the HYG4020A component is not acceptable because it is not sealed. Exposure to cleaning liquids may damage the internal components and cause malfunction. Please also avoid covering the sound hole with tape or other obstacles.
QWhat are the typical applications for the HYG4020A buzzer?
AThe HYG4020A is widely used in telephones, clocks, medical equipment, digital products, toys, office equipment, notebook computers, microwave ovens, air conditioners, home electronics, and automatic controlling devices, thanks to its compact design and reliable acoustic performance.