SZBZX84C15ET1G

Single Zener Diodes Overview

The SZBZX84C15ET1G is a Zener voltage regulator from the BZX84CxxxET1G series, manufactured by onsemi. It provides a nominal Zener breakdown voltage of 15 V with a tolerance range of 13.8 V to 15.6 V at a test current (IZT) of 5 mA. The device operates in a surface-mount SOT-23 package and supports a total power dissipation of 250 mW on an FR-5 board at 25°C ambient temperature. Key electrical characteristics include a maximum Zener impedance of 30 Ohms at IZT=5 mA and a maximum reverse leakage current of 0.05 µA at VR=10.5 V. It features a positive temperature coefficient of 9.2 mV/K at IZT=5 mA and is qualified under AEC-Q101 standards.

Single Zener Diodes Feature Summary

• Designed for voltage regulation in space-constrained applications using the compact SOT-23 surface mount package.
• SZ prefix indicates qualification for automotive and other applications requiring unique site and control change requirements.
• Capable of handling peak power pulses of 225 W for short durations (8 x 20 µs).
• Compliant with RoHS standards and lead-free manufacturing processes.

Single Zener Diodes Applications

• Cellular phones
• Handheld portable devices
• High density PC boards

Single Zener Diodes Procurement Notes

Verify that the specific part number matches the required voltage tolerance and package style. Confirm that the SZ prefix aligns with any automotive or specific supply chain requirements. Ensure compatibility with automated board assembly processes due to the small form factor. Check for any discontinuation notices regarding the BZX84C15ET1G series variants before finalizing procurement plans.

Single Zener Diodes Selection Notes

Select this component when a precise 15 V reference is needed in a low-power, high-density circuit. The SOT-23 package is suitable for automated surface mount technology lines. Consider the thermal derating curves if operating above 25°C ambient temperature. Verify that the 250 mW power rating is sufficient for the expected continuous current load in the target application environment.

Single Zener Diodes Part Context

This device belongs to the BZX84CxxxET1G and SZBZX84CxxxET1G series of Zener diodes. These components are engineered to offer voltage regulation capabilities within a minimal footprint. The series covers a wide breakdown voltage range from 2.4 V to 75 V, allowing designers to standardize on a single package type across various voltage requirements.

Single Zener Diodes Replacement Considerations

Direct replacements within the same series include BZX84C15ET1G. Other manufacturers offering equivalent SOT-23 Zener diodes with similar 15 V specifications should be evaluated based on matching electrical parameters such as impedance, leakage current, and temperature coefficients.