SZBZX84C20LT1G

Single Zener Diodes Overview

The SZBZX84C20LT1G is a Zener diode from the BZX84CxxxLT1G series, housed in an SOT-23 surface-mount package. It provides voltage regulation with a nominal breakdown voltage of 20 V and a tolerance of ±5%. The device supports a maximum power dissipation of 250 mW on FR-4 or FR-5 boards at 25°C ambient temperature. Key electrical characteristics include a reverse leakage current of 50 µA at 14 V and a maximum Zener impedance of 55 Ω at a test current of 5 mA.

Single Zener Diodes Feature Summary

• SZ prefix indicates qualification for automotive applications requiring unique site and control change requirements, meeting AEC-Q101 standards and PPAP capability.
• Designed for optimal automated board assembly within a compact SOT-23 plastic case suitable for high-density PCB layouts.
• Features an ESD rating of Class 3 exceeding 16 kV per the Human Body Model for robust protection.

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 automotive grade designation indicated by the SZ prefix. Confirm compliance with AEC-Q101 qualification and PPAP capability requirements if the application demands strict automotive supply chain controls. Ensure the ordering suffix corresponds to the correct tape and reel packaging specifications for automated assembly processes.

Single Zener Diodes Selection Notes

Select this component when a standard 5% tolerance Zener voltage is sufficient for the circuit design. The SOT-23 package is appropriate for space-constrained designs requiring surface mount technology. Consider the thermal derating characteristics above 25°C to ensure the 250 mW power rating remains within safe operating limits under expected load conditions.

Single Zener Diodes Part Context

This device belongs to the BZX84CxxxLT1G series of Zener diodes manufactured by onsemi. The series offers a wide range of breakdown voltages from 2.4 V to 75 V in the same SOT-23 package form factor. The SZ prefix variant specifically targets markets with stringent quality and traceability requirements, distinguishing it from standard commercial grade equivalents.

Single Zener Diodes Replacement Considerations

Compatible substitutes within the same family include BZX84C20LT1G for non-automotive applications. For tight tolerance requirements, consider the BZX84B20LT1G series which offers tighter voltage tolerances. Verify pinout compatibility as all variants utilize the standard SOT-23 Style 8 configuration.