ZMD91

Single Zener Diodes Overview

The ZMD91 is a surface-mount non-planar Zener diode manufactured by Diotec Semiconductor in the DO-213AA (MiniMELF) package. It provides a nominal Zener voltage of 91 V with a standard tolerance of ±5%. The device supports a maximum power dissipation of 1 W and operates within a junction temperature range of -50°C to +175°C. Key electrical characteristics include a dynamic resistance of 130 Ohms at 1 kHz, a reverse leakage current of 6 µA at 500 nA test conditions, and a maximum Zener test current of 10 mA.

Single Zener Diodes Feature Summary

• High power dissipation capability up to 1 W for robust thermal performance
• Non-planar technology construction ensuring stable voltage regulation
• Compliant with RoHS directives and REACH regulations

Single Zener Diodes Applications

• Voltage stabilization circuits
• Linear voltage regulators
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix when purchasing. Suffixes such as -Q or -AQ indicate AEC-Q101 compliance or qualification respectively, which are distinct from the standard commercial grade version. Confirm that the component matches the required automotive or industrial reliability standards before integration into the design.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 91 V reference point in compact surface-mount designs. Ensure the circuit can handle the 1 W power dissipation limit under worst-case ambient temperatures. Verify that the 130 Ohm dynamic resistance meets the ripple rejection requirements of the target regulator topology.

Single Zener Diodes Part Context

This part belongs to the ZMD1...ZMD100 series of SMD Zener diodes utilizing plastic MiniMELF packaging. The series covers a wide voltage range from 1 V to 100 V. These components are designed for commercial and industrial grade applications, offering a balance between high power handling and small footprint constraints.

Single Zener Diodes Replacement Considerations

Check for equivalent parts from other manufacturers offering the same DO-213AA package and 91 V rating. Verify that any substitute maintains the 1 W power dissipation and 175°C junction temperature limits.