AMMSZ5239A-HF

Single Zener Diodes Overview

The AMMSZ5239A-HF is an automotive-grade Zener diode manufactured by Comchip Technology. It features a nominal Zener voltage of 9.1 V with a tight tolerance of 2%. The device is designed for surface-mount installation in the SOD-123-2 package, dissipating up to 500 mW. Key electrical characteristics include a maximum reverse leakage current of 3 uA and a Zener impedance of 10 Ohms at a test current of 20 mA. It operates reliably within a temperature range of -50 C to +150 C.

Single Zener Diodes Feature Summary

• Automotive-grade reliability certified for harsh operating environments
• High precision voltage regulation with 2% tolerance
• Low leakage current for efficient power management
• Compact SMD form factor suitable for automated assembly

Single Zener Diodes Applications

• Automotive circuit protection systems
• Voltage reference stabilization in vehicle electronics
• Over-voltage protection for sensitive automotive components

Single Zener Diodes Procurement Notes

Verify the specific suffix and manufacturer part number against official Comchip Technology documentation to ensure exact specification matching. Confirm RoHS compliance status and automotive qualification requirements prior to integration. Cross-reference datasheet parameters such as leakage current and impedance with your design constraints. Ensure supply chain sources provide authentic components with traceable manufacturing records.

Single Zener Diodes Selection Notes

Select this component when precise voltage clamping is required in space-constrained automotive applications. The 2% tolerance offers superior accuracy compared to standard 5% variants. Consider the SOD-123-2 package dimensions for PCB layout compatibility. Evaluate thermal dissipation capabilities relative to the 500 mW rating under expected operating conditions.

Single Zener Diodes Part Context

This component belongs to Comchip Technology's automotive diode series, specifically engineered for high-reliability electronic systems. The AMMSZ prefix indicates specialized automotive qualification standards. It complements other Zener diodes in the portfolio by offering tighter voltage tolerances and enhanced thermal performance for critical vehicle subsystems.

Single Zener Diodes Replacement Considerations

Direct substitutes may include MMSZ5239A_R1_00001 from Panjit, which shares similar electrical specifications and packaging. Verify that alternative sources meet the same automotive grade requirements and tolerance levels before substitution.