CMPZDA3V9 TR PBFREE

Overview

The CMPZDA3V9 TR PBFREE is a Zener diode manufactured by Central Semiconductor Corp, designed for surface-mount applications in the SOT-23 package. It features a nominal Zener voltage of 3.9 V with a power dissipation rating of 350 mW. The device operates within a temperature range of -65 °C to +150 °C and includes an 'A' suffix indicating tighter tolerance specifications compared to standard variants. This component is suitable for precision voltage reference and regulation tasks in compact electronic designs.

Feature Summary

• Surface-mount construction in a compact SOT-23 package
• Precision voltage regulation with tight tolerance specifications
• High thermal stability across extended operating temperatures

Applications

• Precision voltage reference circuits
• Low-voltage regulation stages
• Clamping and protection in signal paths

Procurement Notes

Verify the specific tolerance grade associated with the 'A' suffix against the manufacturer's datasheet before procurement. Confirm that the SOT-23 footprint matches the target PCB design. Ensure the 350 mW power dissipation rating aligns with the thermal management capabilities of the final assembly environment.

Selection Notes

Select this component when a stable 3.9 V reference is required in space-constrained designs. Compare the 350 mW power rating against circuit load requirements. Consider the SOT-23 package dimensions for layout compatibility. Evaluate the thermal performance at maximum operating temperatures to ensure reliability under continuous load conditions.

Part Context

This part belongs to Central Semiconductor's CMPZ series of low-power Zener diodes. The series offers various voltage options in small surface-mount packages. The CMPZDA3V9 specifically targets applications requiring precise voltage levels with enhanced tolerance accuracy compared to standard commercial grades.