External square wave drive at 2048Hz
45Ω coil impedance
16mm diameter for through-hole PCB layouts
Min. 85dB sound pressure at 10cm under rated drive conditions
-20℃ to +70℃ operating temperature range
Black Noryl housing for through-hole assembly
The MEIDI HN-1614 16mm 2048Hz Through-Hole Electromagnetic Passive Buzzer is an electromagnetic passive buzzer designed for through-hole mounting in electronic systems requiring external drive signal for sound generation. At 16mm body diameter, this buzzer integrates into through-hole PCB layouts.
The 2048Hz resonant frequency accepts external square wave drive signals. With a rated voltage of 6Vo-p and operating range of 4--8Vo-p, the HN-1614 accommodates drive circuits within this voltage range.
The 45Ω coil resistance matches driver circuits designed for this impedance range. The black Noryl housing provides structural stability for through-hole assembly processes.
External drive architecture --- accepts square wave signals at 2048Hz for tone generation; DC voltage alone will not produce sound (general characteristic of electromagnetic passive buzzers)
Through-hole form factor --- 16mm diameter with pin configuration for through-hole PCB layouts
45Ω coil impedance --- for driver circuit matching within the rated voltage range
Stable acoustic output --- Min. 85dB at 10cm when driven at 6Vo-p, 2048Hz, 50% duty cycle square wave
Noryl housing material --- black housing for through-hole assembly
RoHS environmental compliance --- Yes
| Parameter | Value | Test Conditions |
| Product Type | Electromagnetic Passive Buzzer | --- |
| Rated Voltage | 6Vo-p | Resonant frequency reference |
| Operating Voltage | 4--8Vo-p | Drive signal peak |
| Sound Pressure Level | Min. 85dB | At 6Vo-p, 2048Hz, 50% duty, 10cm |
| Resonant Frequency | 2048Hz | At rated voltage |
| Coil Resistance | 45 ± 5Ω | --- |
| Rated Current | Max. 40mA | At 6Vo-p, 2048Hz, 50% duty |
| Operating Temperature | -20℃ ~ +70℃ | --- |
| Storage Temperature | -30℃ ~ +80℃ | --- |
| External Size | 16mm (diameter) | Body excluding pins |
| Net Weight | Approx. 4.6g | --- |
| Housing Material | Black Noryl | --- |
| Environmental Protection Regulation | RoHS | --- |
Standard Test Conditions: Temperature: 25±3℃, Humidity: 60±10%R.H., Pressure: 860~1060hPa
Industrial control panel alarm modules
Security and intrusion detection systems
Consumer appliance control boards
Diagnostic and test equipment
PLC and automation systems
Uninterruptible power supply units
| Design Requirement | HN-1614 Advantage |
| Through-hole PCB layouts | 16mm diameter for standard mounting |
| Consistent alarm tone frequency | 2048Hz resonant frequency |
| Assembly process compatibility | Black Noryl housing for through-hole assembly |
| Environmental compliance | RoHS |
MEIDI manufactures HN-1614 with quality control at each production stage from product design, purchasing, and testing. Contact MEIDI for certification details.
After any of the following tests, the product shall meet the acceptance criteria: no defects or degradation in appearance and electrical properties (except SPL); SPL shall not decrease by more than 10dB from the minimum SPL specified in the datasheet.
| Test Item | Test Conditions |
| Life Test | 25±10℃, rated voltage, 1/2 duty resonant frequency square wave, 96 hours |
| High Temperature Test | +80℃ storage for 96 hours, recover at room temperature for 3 hours before testing |
| Low Temperature Test | -30℃ storage for 96 hours, recover at room temperature for 3 hours before testing |
| Humidity Test | +40±3℃, 90%--95% RH, 48 hours, recover at room temperature for 6 hours before testing |
| Thermal Shock Test | 70℃ 2 hours → -20℃ 2 hours (1 cycle), interval 1 hour between cycles, total 10 cycles |
| Drop Test | Standard packaging (all 6 faces and 3 edges), drop from 1.2m height onto thick wood board or 5cm hard wood board |
| Vibration Test | 1000 cycles/min, amplitude 1.5mm, 1 hour per axis, 3 axes total |
Caution: Avoid foreign materials entering the product, including magnetic materials, water-soluble materials, and corrosive gases, as these will affect the electrical performance of the product.
| Parameter | Value |
| Product Description | ELECTROMAGNETIC BUZZER |
| Quantity | 6000 PCS |
| Carton Volume | 52×41.5×27 CM |
1. Does this buzzer require an external drive signal, or can it be driven with DC voltage?
As a passive electromagnetic buzzer, HN-1614 requires an external AC signal --- typically a square wave at or near 2048Hz --- to generate audible output. DC voltage alone will not produce sound and may damage the coil through continuous current flow (general characteristic of electromagnetic passive buzzers).
2. What driving frequency is recommended for maximum sound pressure output?
Maximum SPL occurs at the resonant frequency of 2048Hz. SPL decreases significantly when driven off-resonance. For consistent Min. 85dB output, drive at 2048Hz with 50% duty cycle square wave at 6Vo-p.
3. What driver circuit is suitable for the 45Ω coil impedance?
Standard open-collector NPN/PNP transistor configurations with pull-up resistors are compatible. For microcontroller GPIO direct drive, verify the port can source or sink current based on the rated current specification (Max. 40mA). A flyback diode is recommended practice when driving with inductive loads or relay circuits.
4. What is the recommended soldering method for this through-hole buzzer?
HN-1614 is compatible with standard through-hole wave soldering processes. For manual soldering, contact MEIDI for recommended temperature and duration specifications.
5. Are custom resonant frequencies or coil resistances available?
Contact MEIDI for technical inquiries regarding custom configurations.
For technical datasheets, drive circuit application notes, or OEM configuration discussion, contact MEIDI applications engineering.
Address
No.6, Wenlin Road, Chenbao Town, Xinghua City, Jiangsu Province, China
Tel
