SMBZ5920B-E3/5B

Single Zener Diodes Overview

The SMBZ5920B-E3/5B is a surface-mount power voltage-regulating diode manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 6.2 V with a tolerance range of 5.89 V to 6.51 V at a test current of 60.5 mA. The device operates in the SMB (DO-214AA) package and supports a maximum steady-state power dissipation of 3000 mW at a lead temperature of 75 °C, or 550 mW at an ambient temperature of 25 °C. Electrical characteristics include a maximum Zener impedance of 2 Ω at the test current and a reverse leakage current not exceeding 200 µA at 4 V. The component is rated for operating junction and storage temperatures between -55 °C and +150 °C.

Single Zener Diodes Feature Summary

• Low profile package suitable for automated placement
• Low Zener impedance and low regulation factor
• Meets MSL level 1 per J-ST D-020

Single Zener Diodes Applications

• General purpose regulation
• Protection applications

Single Zener Diodes Procurement Notes

Verify that the ordering suffix /5B corresponds to the 3200-unit base quantity on 13-inch diameter plastic tape and reel packaging. Confirm compliance requirements such as RoHS status and halogen-free specifications align with project needs. Ensure thermal management design accounts for the specified power derating curves relative to ambient and lead temperatures.

Single Zener Diodes Selection Notes

Select this component when a 6.2 V reference is required in a compact surface-mount form factor. Evaluate the 2 Ω dynamic impedance against circuit sensitivity requirements. Consider the 3 W power rating capability at elevated lead temperatures versus the 550 mW limit at standard ambient conditions during thermal analysis.

Single Zener Diodes Part Context

This part belongs to the SMBZ5919B through SMBZ5945B series of surface-mount power voltage-regulating diodes. The series covers a wide Zener voltage range from 5.6 V to 68 V within the SMB (DO-214AA) case style. These devices are designed for general-purpose regulation and protection tasks requiring robust surface-mount integration.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same Vishay series include SMBZ5919B-E3/5B (5.6 V) and SMBZ5921B-E3/5B (6.8 V). Cross-manufacturer equivalents must match the 6.2 V nominal voltage, DO-214AA footprint, and equivalent power dissipation ratings.