1SMA5920BT3

Single Zener Diodes Overview

The onsemi 1SMA5920BT3G is a single-channel Zener voltage regulator diode in the 1.5 Watt Plastic Surface Mount series. It features a nominal Zener voltage of 6.2 V with a ±5% tolerance, operating within a range of 5.89 V to 6.51 V at a test current of 60.5 mA. The device provides a maximum dynamic impedance of 2.0 Ω and a reverse leakage current of 4.0 mA at 2.5 V. Packaged in the low-profile SMA (DO-214AA) surface-mount format, it supports DC power dissipation up to 1.5 W at 75°C or 500 mW at 25°C ambient temperature. It operates reliably across a junction and storage temperature range of -65°C to +150°C.

Single Zener Diodes Feature Summary

• Flat handling surface designed for accurate automated placement
• Package design compatible with top slide or bottom circuit board mounting
• ESD protection rated at Class 3 (> 16 kV) per Human Body Model
• Lead-free construction compliant with RoHS standards

Single Zener Diodes Applications

• Voltage regulation in general-purpose electronic circuits
• Protection against electrostatic discharge (ESD) events
• Replacement for traditional MELF package configurations

Single Zener Diodes Procurement Notes

Verify that the specific part number suffix matches your requirements, as the 'G' suffix indicates lead-free compliance. Confirm whether automotive qualification via AEC-Q101 is necessary; if so, ensure the order includes the 'SZ' prefix variant. Always cross-reference the manufacturer's latest datasheet revision to validate electrical characteristics and mechanical dimensions before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when a stable reference voltage near 6.2 V is required in space-constrained designs. The SMA package offers a compact footprint suitable for high-density PCB layouts. Ensure the application environment remains within the specified -65°C to +150°C operating range. Consider the thermal derating curves if the ambient temperature exceeds 25°C to maintain reliable power dissipation limits.

Single Zener Diodes Part Context

This device belongs to the 1SMA59xxBT3G series of 1.5 Watt Zener Voltage Regulators from onsemi. The series covers a broad breakdown voltage spectrum from 3.3 V to 68 V, providing designers with standardized options for various voltage regulation needs. These components are engineered for surface-mount technology, offering robust performance and reliability for modern electronic assemblies.

Single Zener Diodes Replacement Considerations

The datasheet identifies these devices as ideal replacements for MELF packages. Designers transitioning from through-hole or older surface-mount technologies should verify pinout compatibility and thermal management strategies when substituting legacy components with this SMA-series regulator.

Single Zener Diodes FAQ

What is the ESD rating for the 1SMA5920BT3G?

The device has an ESD rating of Class 3, which corresponds to greater than 16 kV according to the Human Body Model.

How does the package design facilitate mounting?

The package is designed to support both top slide mounting and bottom circuit board mounting, offering flexibility in assembly processes.