SMPZ3939B-M3/84A

Single Zener Diodes Overview

The SMPZ3939B-M3/84A is a surface mount power voltage-regulating diode from the eSMP series by Vishay General Semiconductor. It utilizes an SMP (DO-220AA) package with a typical height of 1.0 mm. The device provides a nominal Zener voltage of 39 V, with a range of 37.1 V to 41 V at a test current of 9.6 mA. Maximum Zener impedance is 9.6 Ω, and maximum reverse leakage current is 0.5 μA at 29.7 V. Peak pulse power dissipation reaches 1500 mW at a lead temperature of 75 °C. The component supports a maximum junction temperature of 150 °C.

Single Zener Diodes Feature Summary

• Very low profile construction suitable for automated placement
• Low Zener impedance and low regulation factor
• Meets MSL level 1 per J-STD-020 with LF maximum peak of 260 °C
• Halogen-free, RoHS-compliant, and industrial grade

Single Zener Diodes Applications

• General purpose regulation
• Industrial applications
• Protection applications

Single Zener Diodes Procurement Notes

Verify the specific ordering code against official documentation to ensure correct suffix alignment. Confirm that the requested variant matches the required voltage tolerance and package configuration. Cross-reference the document number and revision date to access the most current electrical characteristics and mechanical data before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component based on its specific 39 V nominal Zener voltage and SMP package dimensions. Evaluate thermal resistance requirements against the specified junction-to-lead and junction-to-ambient values. Ensure the application environment remains within the -65 °C to +150 °C operating temperature range and complies with the material categorization definitions provided in the datasheet.

Single Zener Diodes Part Context

This part belongs to the SMPZ39XB through SMPZ3940B series of surface mount power voltage-regulating diodes manufactured by Vishay General Semiconductor. The series covers a wide Zener voltage range from 5.6 V to 43 V. All variants share the same SMP (DO-220AA) package and general feature set, differing primarily in their specific breakdown voltage parameters and associated test currents.

Single Zener Diodes Replacement Considerations

Direct substitutes include other Vishay SMPZ3939B variants with different packaging codes, such as SMPZ3939B-M3/85A. Verify compatibility regarding tape and reel specifications when considering alternative delivery modes.