DZ23C43-7-F

Overview

The DZ23C43-7-F is a dual Zener diode array manufactured by Diodes Incorporated, housed in an SOT-23 surface-mount package. It features a common cathode configuration with two silicon junctions within a single molded plastic case. The nominal Zener voltage is 43 V, operating within a range of 40 V to 46 V at a test current of 5.0 mA. Maximum power dissipation is rated at 300 mW, supported by a thermal resistance of 417 °C/W from junction to ambient air. The device exhibits a maximum Zener impedance of 100 Ω at 1 kHz and a typical temperature coefficient of +0.110 %/°C. It operates reliably across a temperature range of -65°C to +150°C.

Feature Summary

• Dual Zener diodes integrated in a single common cathode configuration for space-efficient circuit design.
• High reliability qualification meeting JEDEC standards for robust performance in demanding environments.
• Environmentally compliant construction featuring lead-free terminals and halogen-free green molding compound.

Applications

• Voltage reference circuits requiring stable dual supply rails.
• Transient voltage suppression in signal conditioning paths.
• Over-voltage protection for sensitive input stages in consumer electronics.

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm commercial grade status and tape-and-reel packaging quantities. Ensure that the component selection aligns with the required environmental compliance standards, specifically checking for RoHS 3 and REACH directives. Confirm availability through authorized distribution channels to guarantee authenticity and traceability of the semiconductor material.

Selection Notes

Select this component when a compact dual voltage regulation solution is required within limited board space constraints. Consider the positive temperature coefficient for applications where voltage stability increases slightly with temperature. Evaluate the maximum reverse leakage current specifications if low-power standby modes are critical to the system design requirements.

Part Context

This part belongs to the DZ23C 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 pin configurations. The product line is designed to replace discrete dual-diode arrangements, simplifying assembly processes while maintaining consistent electrical characteristics across the entire voltage range.

Replacement Considerations

Direct replacements include other DZ23C43 variants from Diodes Incorporated or equivalent dual common cathode Zener arrays from manufacturers such as Nexperia or onsemi. Verify that substitute components match the 300 mW power rating and SOT-23 footprint to ensure physical compatibility without modifying the printed circuit board layout.

FAQ

What is the polarity configuration of the DZ23C43-7-F?

The device utilizes a common cathode configuration, meaning the cathodes of both internal Zener diodes are connected to a single terminal.

How does the Zener voltage vary with temperature?

The DZ23C43-7-F has a typical positive temperature coefficient of +0.110 %/°C, indicating the breakdown voltage increases as temperature rises.

Is this component suitable for automated assembly?

Yes, the datasheet explicitly states the device is ideally suited for automated insertion due to its standard SOT-23 packaging and tape-and-reel shipping format.