CEP-2224

Overview

The CEP-2224 is a through-hole piezo audio indicator buzzer manufactured by Same Sky. It features an internally driven design requiring no external oscillator circuitry. The unit operates within a voltage range of 3 to 20 VDC and draws a current of 15 mA. It produces a sound pressure level of 78 dB at 12 V with a resonant frequency of 3.4 kHz. The component utilizes PC pin termination for PCB mounting and has a diameter of 24 mm.

Feature Summary

• Internally driven piezoelectric mechanism eliminates the need for external driving circuits
• Wide operating voltage range supports flexible power supply integration
• Through-hole PC pin construction ensures secure mechanical attachment

Applications

• Electronic equipment status indication
• Alarm systems requiring audible alerts
• Consumer appliance feedback signals

Procurement Notes

Verify the specific electrical parameters against the official datasheet before integration, particularly the 78 dB rating which is measured at 12 V. Confirm that the 3.4 kHz frequency aligns with acoustic requirements. Ensure the through-hole footprint matches the target PCB layout. Check RoHS compliance documentation for regulatory adherence in restricted substance zones.

Selection Notes

Select this component when an integrated solution is preferred over discrete driver circuits. The wide voltage tolerance allows operation across various DC levels without modification. Consider the 78 dB output sufficient for general alerting but verify audibility in high-noise environments. The through-hole format is suitable for prototyping or applications requiring robust mechanical fixation.

Part Context

This part belongs to the Same Sky piezo buzzer family designed for compact audio signaling. It replaces older CUI Devices branding while maintaining identical form and function. The series offers standardized dimensions for easy replacement in existing designs. Internal drivers simplify schematic design compared to passive buzzers.

Replacement Considerations

Direct substitutes must match the 24 mm diameter, 3.4 kHz frequency, and internal drive capability. Verify pin compatibility for through-hole mounting. Ensure equivalent acoustic output near 78 dB at similar test voltages.