AZ23C33-7

Overview

The AZ23C33-7 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 and operates within a temperature range of -65°C to +150°C. The nominal Zener voltage is 33 V with a tolerance of ±5%, resulting in a specified range of 31 V to 35 V at a test current of 5.0 mA. Maximum Zener impedance is 80 Ω at the test current and 250 Ω at 1.0 mA. The device exhibits a typical temperature coefficient of +0.090 %/°C and a minimum reverse voltage of 25.0 V.

Feature Summary

• Dual Zener diodes integrated in a single common anode configuration for space-efficient circuit designs.
• Qualified to AEC-Q101 standards with high electrostatic discharge (ESD) protection ratings.
• Manufactured using lead-free, halogen-free, and antimony-free "Green" molding compounds.

Applications

• Voltage reference circuits requiring dual independent regulation channels.
• Clamping and protection stages in automotive electronic control units.
• Signal conditioning modules utilizing low-power dual Zener arrays.

Procurement Notes

Verify component authenticity through authorized distribution channels or direct manufacturer procurement. Confirm that the ordering suffix matches commercial grade specifications (-7-F). Ensure compliance with RoHS 3 directives and verify that the specific batch meets IATF 16949 requirements if automotive qualification is mandatory for the intended application environment.

Selection Notes

Select this component when a dual-channel voltage regulation solution is required in a compact SOT-23 footprint. The common anode topology simplifies biasing compared to separate discrete components. Evaluate thermal resistance constraints under continuous load conditions to ensure operation remains within the 300 mW power dissipation limit across the full industrial temperature range.

Part Context

This part belongs to the AZ23C series of dual surface mount Zener diodes produced by Diodes Incorporated. The series spans various voltage ratings from 2.7 V to 51 V, all sharing identical mechanical dimensions and packaging characteristics. The AZ23C33 variant specifically addresses applications requiring a 33 V breakdown threshold within a standardized small-outline transistor form factor.

Replacement Considerations

Direct substitute: AZ23C33-7-F

FAQ

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

The device is qualified to AEC-Q101 standards, specifying Human Body Model (HBM) sensitivity of 8kV and Machine Model (MM) sensitivity of 400V.

How does the Zener impedance vary between test currents?

The maximum Zener impedance is specified as 80 Ω at a test current (IZT) of 5.0 mA, increasing to a maximum of 250 Ω at a lower current (IZK) of 1.0 mA.

Is the AZ23C33-7 suitable for automated assembly processes?

Yes, the datasheet explicitly states the device is ideally suited for automated insertion and comes in tape and reel packaging for efficient manufacturing integration.