SZMMBZ16VTALT1G

Overview

The SZMMBZ16VTALT1G is a dual monolithic silicon Zener transient voltage suppressor in an SOT-23 package. It features a common anode design for protecting two separate lines. The device has a working peak reverse voltage of 13 V and a nominal breakdown voltage of 16 V with a tight 2% tolerance range (15.68 V to 16.32 V). It handles a peak pulse power of 40 W at 1.0 ms, with a maximum clamping voltage of 23 V at 1.7 A. The component operates within a temperature range of -55°C to +150°C and meets IEC61000-4-2 Level 4 ESD protection standards.

Feature Summary

• Dual junction common anode configuration allows protection of two independent signal lines using a single compact package.
• High peak pulse power dissipation capability of 40 W ensures robust transient overvoltage suppression.
• Tight 2% tolerance on breakdown voltage provides precise clamping performance for sensitive circuits.
• AEC-Q101 qualified with PPAP capability, suitable for automotive applications requiring unique site control.

Applications

• Computer interface protection
• Microprocessor bus protection
• I/O line protection in business machines

Procurement Notes

Verify the specific ordering suffix 'ALT1G' corresponds to the 8 mm tape and reel packaging containing 3,000 units per the manufacturer's documentation. Confirm that the 'SZ' prefix indicates compliance with automotive site and change control requirements. Ensure the requested quantity matches the standard reel size or requires special handling for cut tape options if available.

Selection Notes

Select this component when board space is limited and dual-line protection is required. The 2% tolerance variant is appropriate for applications needing tighter voltage regulation compared to the standard 5% tolerance devices. Verify that the 13 V working voltage aligns with the system's operating parameters to ensure effective clamping without unnecessary leakage.

Part Context

This part belongs to the MMBZ16V series of 40 Watt Peak Power Zener Transient Voltage Suppressors. It shares the same electrical characteristics as the MMBZ16VTALT1G but includes the 'SZ' prefix to denote qualification for automotive and other applications requiring unique site and control change requirements under AEC-Q101 standards.

Replacement Considerations

The MMBZ16VTALT1G serves as the non-automotive equivalent with identical electrical specifications. For general industrial use where automotive qualification is not required, the MMBZ16VTALT1G can be substituted directly.