ACZRM5257B-HF

Single Zener Diodes Overview

The ACZRM5257B-HF is a surface-mount Zener diode manufactured by Comchip Technology, designed for voltage regulation and protection applications. It features a nominal Zener voltage of 33 V with a maximum tolerance of 5%. The device operates within a power dissipation range of up to 0.5 W and supports an operating temperature range from -65 °C to +150 °C. Packaged in the SOD-123F-2 form factor, it meets AEC-Q101 automotive qualification standards and complies with RoHS directives.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive reliability requirements
• Halogen-free construction with planar die technology
• Low-profile SMD package suitable for automated assembly

Single Zener Diodes Applications

• Automotive electronic circuit protection
• Voltage reference stabilization
• Over-voltage protection circuits

Single Zener Diodes Procurement Notes

Verify the specific datasheet revision and AEC-Q101 certification status directly with Comchip Technology or authorized distributors before procurement. Confirm that the SOD-123F-2 footprint matches your PCB design constraints. Ensure compliance with RoHS and halogen-free requirements as specified in the official documentation.

Single Zener Diodes Selection Notes

Select this component when a 33 V Zener voltage is required in an automotive-grade environment. The 0.5 W power rating and wide temperature range make it suitable for demanding applications. Verify that the 5% voltage tolerance aligns with your circuit's precision requirements.

Single Zener Diodes Part Context

This part belongs to the ACZRM52xxB-HF series of automotive-grade Zener diodes. The series offers various voltage options in the compact SOD-123F-2 package, providing a standardized solution for voltage regulation across different automotive systems while maintaining consistent physical dimensions and thermal characteristics.

Single Zener Diodes Replacement Considerations

Cross-reference with other AEC-Q101 qualified Zener diodes offering 33 V nominal voltage and similar power dissipation ratings. Ensure mechanical compatibility with the SOD-123F-2 package and verify electrical parameter equivalence.