MMBZ5V6ALT3G

Overview

The MMBZ5V6ALT3G is a dual monolithic silicon Zener transient voltage suppressor in an SOT-23 package. It features a common anode configuration for protecting two separate lines. The device has a working peak reverse voltage of 3 V and a nominal breakdown voltage of 5.6 V, with a minimum of 5.32 V. It handles a maximum reverse leakage current of 5 µA at VRWM. Peak pulse power dissipation is 24 W at 1.0 ms, with a clamping voltage of 8.0 V at 3.0 A peak pulse current. The component operates between -55 °C and +150 °C.

Feature Summary

• Dual junction common anode design protects two independent signal lines within a single compact package.
• Provides high ESD protection rated at ±30 kV contact discharge per IEC61000-4-2 Level 4.
• Low leakage current specification ensures minimal impact on sensitive circuit operation.
• UL 94 V-0 flammability rating with void-free transfer-molded thermosetting plastic case.

Applications

• Protection for computer interface buses and data lines
• ESD suppression for printer terminals and business machines
• Voltage clamping for medical equipment input/output channels
• Transient overvoltage protection in communication systems

Procurement Notes

Verify the ordering suffix T3 indicates a 13-inch reel containing 10,000 units. Confirm RoHS compliance and Pb-Free status via the datasheet marking diagram. Ensure the SZ prefix is not required if automotive PPAP capabilities are needed, as this specific part lacks that designation.

Selection Notes

Select this component when board space is limited and dual-line protection is required. Compare the 24 W peak power rating against higher voltage variants in the series which offer 40 W. Verify the 3 V working voltage aligns with the target system's operating levels to prevent unnecessary conduction.

Part Context

This device belongs to the MMBZxxxALT1G series of dual common anode Zeners. It shares the SOT-23 (CASE 318) mechanical outline with other voltages in the family. The T3 suffix specifically denotes the 10,000-unit tape and reel packaging format distinct from the standard 3,000-unit T1 reel.

Replacement Considerations

MMBZ5V6ALT1G serves as the direct functional equivalent packaged in a 3,000-unit reel. For automotive applications requiring unique site control, consider the SZMMBZ5V6ALT1G variant which holds AEC-Q101 qualification and PPAP capability.