AZ23C33-7-F

Overview

The AZ23C33-7-F is a dual surface mount Zener diode from Diodes Incorporated, housed in an SOT23 package. It features a common anode configuration with two independent Zener elements sharing a single terminal. The device has a maximum power dissipation rating of 300mW and operates within a temperature range of -65°C to +150°C. For the AZ23C33 variant, the Zener voltage ranges from 31V to 35V at a test current of 5.0mA. The typical temperature coefficient is +0.090%/°C, with a maximum Zener impedance (ZZT) of 80Ω and leakage current (ZZK) of 250µA at 1.0mA.

Feature Summary

• Dual Zener diodes integrated in a single common anode configuration for space-efficient designs.
• Qualified to JEDEC standards for high reliability and AEC-Q101 automotive grade requirements.
• Totally lead-free, fully RoHS compliant, and halogen/antimony free green device.

Applications

• Voltage reference circuits requiring dual stable voltage levels.
• Clamping and protection applications in compact surface mount assemblies.
• Automotive electronics systems adhering to high reliability standards.

Procurement Notes

Verify the complete part number including the suffix to ensure correct packaging and qualification level. Confirm that the commercial grade AZ23C33-7-F meets specific application requirements, as automotive versions require the Q-suffix. Check datasheet revisions for any updates to electrical characteristics or mechanical dimensions before finalizing procurement specifications.

Selection Notes

Select this component when a dual Zener solution with a common anode is required in an SOT23 footprint. Ensure the operating voltage falls within the 31V to 35V range and that the 300mW power dissipation limit is sufficient for the intended thermal environment. Verify compatibility with automated insertion processes if high-volume manufacturing is planned.

Part Context

This part belongs to the AZ23C2V7-AZ23C51 series, which offers various Zener voltage options in a standardized dual-diode format. The series provides flexibility for designers needing multiple voltage references in a minimal package size. The AZ23C33 specifically addresses applications requiring approximately 33V regulation or clamping.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult Diodes Incorporated for equivalent products or verify pin-compatible alternatives from other manufacturers based on specific electrical and mechanical constraints.

FAQ

What is the ESD sensitivity rating for the AZ23C33-7-F?

The device is qualified to AEC-Q101 with an HBM rating of 8kV and MM rating of 400V. It also meets IEC 61000-4-2 standards with 15kV air discharge and 8kV contact discharge ratings.

How is the marking code determined for this component?

The marking code for the AZ23C33 is 'DR'. This code appears on the top view of the SOT23 package along with the date code information.

What is the typical thermal resistance of the device?

The typical thermal resistance from junction to ambient air (RθJA) is 417°C/W, measured when mounted on an FR-4 PC board with the recommended pad layout.