AMMSZ5247B-HF

Single Zener Diodes Overview

The AMMSZ5247B-HF is an automotive-grade Zener diode manufactured by Comchip Technology, designed for surface-mount applications in the SOD-123-2 package. It features a nominal Zener voltage of 10V with a tight tolerance of 5%. The device supports a power dissipation of 500mW and operates within a temperature range extending up to +150°C. Key electrical characteristics include a maximum reverse leakage current of 3µA and a Zener impedance of 17 Ohms at a test current of 20mA. The component is RoHS compliant and halogen-free, ensuring suitability for automated assembly processes in demanding electronic circuits.

Single Zener Diodes Feature Summary

• Automotive-grade reliability certified for high-temperature environments
• Halogen-free planar die construction for environmental compliance
• Low-profile SMD packaging optimized for automated surface-mount assembly

Single Zener Diodes Applications

• Voltage regulation in automotive electronic control units
• Over-voltage protection circuits in vehicle systems
• Reference voltage generation in automotive sensor interfaces

Single Zener Diodes Procurement Notes

Verify the specific part number against official Comchip Technology documentation to confirm automotive qualification status and exact electrical tolerances. Ensure compatibility with SOD-123-2 footprint requirements during PCB design. Cross-reference datasheet parameters such as Zener impedance and leakage current against system specifications before integration. Confirm RoHS and halogen-free compliance through manufacturer certificates if required by project standards.

Single Zener Diodes Selection Notes

Select this component when automotive-grade durability and precise voltage regulation are required in space-constrained designs. The SOD-123-2 package offers a compact solution suitable for high-density mounting. Consider the 500mW power rating and +150°C maximum operating temperature for thermal management planning. Verify that the 5% voltage tolerance meets the precision requirements of the target application circuit.

Single Zener Diodes Part Context

This component belongs to Comchip Technology's automotive Zener diode series, specifically engineered for robust performance in vehicular electronics. The AMMSZ prefix indicates its classification within the company's specialized automotive line, distinguishing it from standard commercial variants. These devices utilize planar technology to ensure consistent electrical characteristics across production batches.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in available documentation. Consult official manufacturer substitution guides or equivalent automotive-grade Zener diodes with matching SOD-123-2 packaging and 10V/500mW specifications.