CPE-350

Alarms, Buzzers, And Sirens Overview

The CPE-350 is a piezoelectric audio indicator manufactured by Same Sky. It operates at a nominal voltage of 12 VDC with a supply current of 7 mA. The device produces a sound pressure level of 85 dB at 12 V measured from a distance of 30 cm. Its operating frequency is 2.8 kHz. The unit features a flange mounting style with wire leads for termination. The housing diameter is 41.80 mm, and it functions within a temperature range of -30°C to 85°C.

Alarms, Buzzers, And Sirens Feature Summary

• Piezoelectric technology for reliable acoustic signaling
• Internal driver circuitry for direct DC operation
• Flange mounting design for secure panel installation
• Sealed construction suitable for industrial environments

Alarms, Buzzers, And Sirens Applications

• Industrial control panels requiring audible status alerts
• Medical equipment indicating operational states
• Automotive dashboard systems for warning signals
• Home appliance user interface feedback mechanisms

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific revision of the CPE-350 datasheet to confirm terminal configuration and lead length requirements. Ensure the mounting hole diameter matches the 41.80 mm flange specification. Confirm that the 12 VDC supply aligns with the system's power budget, as the unit draws 7 mA during operation. Check for RoHS compliance documentation if required by your manufacturing standards.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a high-volume, cost-effective piezoelectric indicator is needed for panel mounting. The 85 dB output provides clear audibility in moderate noise environments. Consider the 2.8 kHz tone frequency for distinct alert identification. The internal driver simplifies PCB design by eliminating external oscillator components. Verify thermal constraints against the -30°C to 85°C operating range.

Alarms, Buzzers, And Sirens Part Context

The CPE-350 belongs to Same Sky's CPE series of piezoelectric buzzers. This series offers various diameters and voltage ratings to suit different enclosure sizes and power supplies. The flange-mounted variant provides mechanical stability compared to through-hole options. It serves as a standard solution for basic audio indication tasks where complex waveform generation is unnecessary.

Alarms, Buzzers, And Sirens Replacement Considerations

Cross-reference with other 41.80 mm diameter piezoelectric buzzers from manufacturers like NMB or Murata. Ensure replacement units match the 12 VDC rating and 85 dB SPL requirement. Verify that the new component supports flange mounting and has compatible wire lead specifications.