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MCM 28740 Electronic Buzzer

The 28-740 electronic buzzer, made from durable ABS material, produces a continuous tone ideal for alarm systems and audio signaling. Operating at 12V DC, it generates a sound level of at least 85dB at 10cm with a resonant frequency between 4.7 to 0.5 kHz. It features low current consumption of less than 8mA, and is tested for environmental durability including temperature extremes, humidity, vibration, and drop resilience. Its compact dimensions and reliable performance make it suitable for security, warning, and thermal management applications, ensuring clear alert signals and dependable operation in various environments.

Authorized Distributors
Source:Newark
Part No:28-740
Stock:683
Inv Date:06-09-2026
Price: Unit price: $2.94
Buy/RFQ:
Source:DigiKey
Part No:28740
Stock:0
Inv Date:06-09-2026
Price: Unit price: $231.41
Buy/RFQ:
Part No:28740
Stock:0
Inv Date:06-10-2026
Price: Unit price: $231.41
Buy/RFQ:
Part No:28740
Stock:0
Inv Date:06-09-2026
Price: Unit price: $236.04
Buy/RFQ:
Part No:28740
Stock:0
Inv Date:06-09-2026
Price: Unit price: $297.83
Buy/RFQ:
Part No:28740
Stock:0
Inv Date:06-09-2026
Price: Unit price: $297.83
Buy/RFQ:

MCM 28740 Electronic Buzzer Specifications:

  • Material: ABS
  • Operating Voltage: 12V DC
  • Sound Pressure Level: at least 85dB at 10cm
  • Resonate Frequency: 4.7 to 0.5 kHz
  • Consumption Current: <8mA at 12VDC
  • Temperature Range (Operating): -20°C to +70°C
  • Temperature Range (Storage): -30°C to +80°C
  • Dimensions: Approximately 13+0.5 mm x 22.5+0.2 mm
  • Certifications: Not specified
  • Environmental Durability: tested for temperature, humidity, vibration, drop, and soldering effects

Buy the Buy Durable ABS Electronic Buzzer Part Number 28740 Online

Purchase the electronic buzzer designed with ABS material for durability and consistent performance in alarm systems and signaling applications. Operating at 12V DC, it delivers a clear sound of at least 85dB, suitable for warning alerts and control systems. Its resonant frequency ranges from 4.7 to 0.5 kHz, ensuring versatility across various applications. The buzzer has low power consumption of less than 8mA, making it energy-efficient. Its compact size, environmental testing, and reliability ensure it performs well under temperature extremes, humidity, vibration, and impact, providing long-lasting service and effective alerts in industrial, security, and thermal management settings.

Buy Durable ABS Electronic Buzzer 28740 now and experience reliable continuous sound for alarm and signaling applications in harsh environments.

Frequently Asked Questions

Where can I buy MCM 28740?

You can click on the BUY or RFQ button to purchase 28740 from an authorized MCM distributor.

How do I troubleshoot issues or seek technical support for part 28740?

You can download the 28740 datasheet or visit the MCM website for support.

Who is the manufacturer of 28740?

MCM

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