AZ23C27-7-F

Overview

The AZ23C27-7-F is a dual surface mount Zener diode manufactured by Diodes Incorporated, housed in an SOT-23 package. It features a common anode configuration with a maximum power dissipation of 300 mW. The nominal Zener voltage is 27 V, operating within a range of 25.1 V to 28.9 V at a test current of 5.0 mA. Maximum Zener impedance is specified as 80 Ohms at IZT and 250 Ohms at IZK. The device exhibits a typical temperature coefficient of +0.09 %/°C and supports an operating temperature range from -65°C to +150°C.

Feature Summary

• Dual Zener diodes integrated in a single common anode configuration for space-efficient circuit design.
• Qualified to AEC-Q101 standards with high electrostatic discharge (ESD) protection ratings.
• Manufactured using lead-free, halogen-free, and antimony-free materials compliant with RoHS directives.

Applications

• Automotive electronic systems requiring AEC-Q101 qualified components.
• Voltage reference circuits utilizing dual independent regulation channels.
• Clamping and protection applications in surface-mount assembly environments.

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm commercial versus automotive qualification status. Ensure that the selected component meets the required ESD sensitivity ratings and environmental compliance standards for the intended deployment environment before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel voltage regulation solution is required within a compact SOT-23 footprint. Consider the positive temperature coefficient and specific impedance values when designing precision reference circuits. Verify that the thermal resistance characteristics align with the expected ambient temperature conditions and power dissipation limits of the target application.

Part Context

This part belongs to the AZ23C series of dual surface mount Zener diodes produced by Diodes Incorporated. The series offers various voltage options within the same package form factor, facilitating standardized inventory management. The AZ23C27 variant specifically addresses applications requiring approximately 27 V regulation with matched performance between the two internal diodes.

Replacement Considerations

Direct replacements include other parts within the AZ23C series sharing the SOT-23 package and common anode topology. Cross-reference electrical parameters such as Zener voltage tolerance, impedance, and power dissipation to ensure functional equivalence. Automotive-grade equivalents may require the Q-suffix designation if AEC-Q101 qualification is mandatory.

FAQ

What is the ESD sensitivity rating for the AZ23C27-7-F?

The device is rated at 8kV for Human Body Model (HBM) and 400V for Machine Model (MM) under AEC-Q101 standards.

How is the polarity configured in the SOT-23 package?

The component utilizes a common anode configuration, where the anodes of both Zener diodes are connected to a single terminal.

What is the maximum reverse leakage current specification?

The datasheet specifies a maximum reverse voltage of 20.0 V at a reverse current of 0.1 µA for the AZ23C27 type.