SMI-158-2

Alarms, Buzzers, And Sirens Overview

The SMI-158-2 is a surface-mount magnetic audio indicator manufactured by PUI Audio, Inc. It features a compact footprint of 12.8 x 12.8 mm with a maximum seated height of 7.10 mm. Designed for low-voltage operation, it typically functions within a 5V DC range. The component integrates internal driver circuitry to produce audible signals directly from the PCB without requiring external amplification.

Alarms, Buzzers, And Sirens Feature Summary

• Surface-mount design for automated assembly
• Integrated driver circuitry for direct connection
• Compact form factor suitable for space-constrained boards

Alarms, Buzzers, And Sirens Applications

• Consumer electronics status indication
• Industrial control panel signaling
• Medical device auditory alerts

Alarms, Buzzers, And Sirens Procurement Notes

Verify current availability as this part may be obsolete. Confirm RoHS compliance status, as sources indicate potential lead content. Ensure substitute parts match mechanical dimensions and electrical requirements before integration into new designs.

Alarms, Buzzers, And Sirens Selection Notes

Select based on required voltage rating and acoustic output needs. Verify that the surface-mount package aligns with the target PCB footprint. Consider environmental operating temperatures and mounting stability for the final application environment.

Alarms, Buzzers, And Sirens Part Context

This component belongs to PUI Audio's line of magnetic indicators and buzzers. These devices are engineered for reliable auditory feedback in various electronic systems. The series emphasizes ease of integration through standardized surface-mount packages.

Alarms, Buzzers, And Sirens Replacement Considerations

Direct substitutes include the SMI-1324-TW-5V-2-R. Verify compatibility regarding voltage specifications, acoustic performance, and physical dimensions before replacing the obsolete part.