ZMM5226B-13

Single Zener Diodes Overview

The ZMM5226B-13 is a surface-mount silicon planar power Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It features a MiniMELF (DO-213AA) hermetic glass package with a cathode band marking. The device provides a nominal Zener voltage of 3.3 V with a tolerance range of 3.14 V to 3.47 V at a test current of 20 mA. Maximum Zener impedance is specified as 28 Ohms, and maximum reverse leakage current is 25 µA at 1 V. Power dissipation is rated at 500 mW, with an operating temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetic glass package construction for environmental stability
• Surface mount MiniMELF form factor compatible with automated assembly
• Wide operating junction temperature range up to 175°C

Single Zener Diodes Applications

• Voltage reference circuits requiring stable low-voltage regulation
• Overvoltage protection in compact electronic assemblies
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific manufacturer designation when sourcing this component, as the part number may be associated with different suppliers including Diodes Incorporated or Vishay. Confirm that the received units match the DO-213AA package outline and electrical characteristics defined in the official datasheet. Ensure compliance with RoHS directives if required by the end application specifications.

Single Zener Diodes Selection Notes

Select this component for designs requiring a 3.3 V reference in a small surface-mount footprint. The MiniMELF package offers thermal performance suitable for 500 mW dissipation without excessive board space usage. Consider the negative temperature coefficient of approximately -0.070 %/°C for precision applications where ambient temperature variations are expected.

Single Zener Diodes Part Context

This device belongs to the ZMM5221B through ZMM5267B series of 500 mW surface mount Zener diodes. The series covers a wide voltage range from 2.4 V to 75 V, all sharing the same MiniMELF mechanical outline. This specific model represents the lower voltage segment of the family, optimized for tight tolerance regulation near the 3.3 V standard logic level.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering equivalent MiniMELF Zener diodes rated for 3.3 V and 500 mW. Verify that any substitute maintains the same DO-213AA pinout and hermetic sealing requirements to ensure mechanical and electrical compatibility.