SZ1SMB5948BT3G

Single Zener Diodes Overview

The onsemi SZ1SMB5948BT3G is a 3 W plastic surface mount Zener voltage regulator diode with a nominal voltage of 91 V and a ±5% tolerance. It operates within a temperature range of −65°C to +150°C, features an ESD rating exceeding 16 kV per the Human Body Model, and complies with AEC-Q101 qualification standards.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive applications
• ESD protection rated above 16 kV via Human Body Model
• Flat handling surface designed for accurate placement
• Lead configuration modified for enhanced bond pad contact area

Single Zener Diodes Applications

• Automotive electronic circuits requiring unique site control
• General-purpose voltage regulation in surface mount designs
• Protection against electrostatic discharge events

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the specific automotive requirements, as the SZ prefix indicates compliance with unique site and control change protocols mandated by AEC-Q101. Confirm package dimensions align with the recommended footprint to ensure proper thermal dissipation and mechanical stability during assembly processes.

Single Zener Diodes Selection Notes

Select this component when a 91 V reference is required in a compact SMB package. The device supports top-side or bottom-side mounting configurations. Ensure the application accounts for the derating curve above 75°C to maintain reliable operation under steady-state power dissipation limits.

Single Zener Diodes Part Context

This part belongs to the 1SMB59xxBT3G and SZ1SMB59xxT3G series, which provides a comprehensive line of 3 W Zener diodes ranging from 3.3 V to 200 V. The series utilizes a void-free, transfer-molded plastic case with corrosion-resistant external surfaces suitable for standard soldering procedures.

Single Zener Diodes Replacement Considerations

Direct substitutes include other parts within the 1SMB59xxBT3G series sharing identical electrical characteristics and package dimensions. Verify that any replacement maintains the required AEC-Q101 qualification if the application demands automotive-grade reliability.