| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
CUI Devices |
BUZZER PIEZO 12V 41.8MM PNL MT |
0 |
|
 |
CUI Devices |
BUZZER PIEZO 12V 30MM T/H |
304 |
|
 |
CUI Devices |
AUDIO MAGNETIC INDICATOR 4-7V TH |
12175 |
|
 |
CUI Devices |
BUZZER, 13.8 MM X 7.5 MM DEEP, P |
578 |
|
 |
CUI Devices |
BUZZER, 12.8 MM X 12.8 MM X 7.1 |
0 |
|
 |
CUI Devices |
BUZZER, 42.5 MM, 33 MM DEEP, P, |
383 |
|
 |
CUI Devices |
AUDIO MAGNETIC IND 10-13V TH |
0 |
|
 |
CUI Devices |
TRANSDUCER PIEZO 14V 35.5MM FLNG |
958 |
|
 |
CUI Devices |
AUDIO PIEZO TRANSDUCER 20V SMD |
6061 |
|
 |
CUI Devices |
AUDIO PIEZO INDICATOR 9-16V TH |
1230 |
|
 |
CUI Devices |
AUDIO MAGNETIC XDCR 1-2V TH |
511 |
|
 |
CUI Devices |
BUZZER, 35.7 MM X 33 MM DEEP, P, |
0 |
|
 |
CUI Devices |
AUDIO MAGNETIC IND 2-5V SMD |
0 |
|
 |
CUI Devices |
BUZZER, 16 MM X 14 MM DEEP, M, 6 |
0 |
|
 |
CUI Devices |
AUDIO PIEZO INDICATOR 3-28V CHAS |
781 |
|
 |
CUI Devices |
BUZZER, 41.8 MM X 16 MM DEEP, P, |
0 |
|
 |
CUI Devices |
AUDIO PIEZO TRANSDUCER 30V TH |
586 |
|
 |
CUI Devices |
AUDIO PIEZO TRANSDUCER 25V SMD |
0 |
|
 |
CUI Devices |
BUZZER, 8.5 MM, 3 MM DEEP, M, 3. |
0 |
|
 |
CUI Devices |
AUDIO PIEZO TRANSDUCER 25V CHAS |
927 |
|
Alarms, buzzers, and sirens are audio signaling devices designed to alert humans to specific conditions through audible signals. They play a critical role in safety, security, automation, and communication systems. These devices convert electrical energy into sound waves using mechanical or electronic mechanisms, ensuring detectability in various environments.
| Type | Functional Features | Application Examples |
|---|---|---|
| Electromagnetic Buzzers | Use magnetic fields to vibrate a diaphragm; low power consumption | Consumer electronics, industrial equipment |
| Piezoelectric Buzzers | Utilize piezoelectric crystals for sound generation; high reliability | Medical devices, smoke detectors |
| Electronic Sirens | Generate variable tones via integrated circuits; weatherproof designs | Emergency vehicles, outdoor warning systems |
| Strobe Alarms | Combine loud sounds with high-intensity light flashes | Hazardous environments, fire alarm systems |
Typical components include:
| Parameter | Importance | Typical Range |
|---|---|---|
| Sound Pressure Level (SPL) | Determines audibility distance | 60-120 dB |
| Operating Voltage | Affects compatibility with host systems | 3-24 V DC |
| Frequency Range | Influences tone characteristics | 1-5 kHz |
| Current Consumption | Impacts power budget | 5-150 mA |
| Environmental Rating | Determines deployment suitability | IP40-IP67 |
Major industries include:
| Manufacturer | Representative Product | Key Features |
|---|---|---|
| Honeywell | 56 Series Buzzers | RoHS compliant, 85 dB@10cm |
| Siemens | SIRIUS 3RA2 | Multi-tone siren with IP66 rating |
| Omron | Industial Buzzers | Compact 24V DC design |
| Eaton | Audio Strobe Alarms | 110 dB with LED flash |
Key considerations:
Emerging developments: