21S5120LFLA

Overview

The DB Products 21S5120LFLA is an internally driven piezoelectric buzzer designed for single-tone acoustic signaling. It operates on a nominal DC voltage of 12 V with a current consumption of 5 mA. The device generates an acoustic output of 85 dB at 12 V measured at a distance of 30 cm, centered at a frequency of 4.5 kHz. The operating temperature range spans from -20°C to 60°C, ensuring thermal stability in various environments.

Feature Summary

• Internally driven piezoelectric mechanism for simplified circuit integration
• Single-tone operation mode suitable for system setup and basic alerting
• Robust enclosure construction providing component protection during transport

Applications

• Industrial equipment status indication
• Consumer appliance alarm systems
• Automotive interior warning signals

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest datasheet to ensure correct voltage and acoustic specifications. Confirm that the bulk packaging format aligns with your assembly requirements. Cross-reference the part number with authorized distributors to validate authenticity and warranty terms before finalizing procurement orders.

Selection Notes

Select this component when a simple, internally driven acoustic signal is required without external oscillator circuits. Ensure the application environment falls within the specified -20°C to 60°C operating temperature range. Verify that the 12 VDC supply matches the system power architecture and that the 85 dB sound pressure level meets regulatory or user-audibility requirements.

Part Context

DB Products Limited is a Hong Kong-based manufacturer specializing in acoustic components since 1976. The company develops a wide range of products including buzzers, piezo elements, microphones, and speakers. This model belongs to their line of indicator buzzers designed for reliable performance in various electronic applications.

Replacement Considerations

Consult official substitution lists for equivalent internally driven piezo buzzers with matching 12 VDC ratings and 4.5 kHz frequency. Verify mechanical dimensions and mounting configurations to ensure compatibility with existing PCB layouts and enclosures.