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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 15V SOT-23-3
- Series：SZMMBZxxxALT1G
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：15 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：-
- Current - Reverse Leakage @ Vr：50 nA @ 12 V
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3 (TO-236)
- Voltage - Forward (Vf) (Max) @ If：900 mV @ 10 mA
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Overview
The SZMMBZ15VALT1G is a unidirectional Transient Voltage Suppression (TVS) diode manufactured by onsemi, belonging to the MMBZ A series. It is housed in an SOT-23 surface-mount package with three pins. The device features a maximum reverse standoff voltage of 12 V and a breakdown voltage of 14.25 V. It provides a clamping voltage of 21 V under test conditions and can handle a peak pulse power dissipation of 24 W with a peak pulse current of 1.9 A. The component operates within a temperature range of -55°C to +150°C and is qualified to the AEC-Q101 automotive standard.
Feature Summary
- Provides electrostatic discharge protection for sensitive electronic circuits
- Designed for surface-mount assembly in compact form factors
- Qualified for automotive applications meeting specific reliability standards
Applications
- Protection of data lines in automotive infotainment systems
- ESD suppression for portable consumer electronics interfaces
- Transient voltage protection in industrial control signal lines
Procurement Notes
Verify the exact part number suffix against official manufacturer documentation to ensure correct configuration. Confirm that the received components match the specified AEC-Q101 qualification status. Check datasheet revisions for any updates to mechanical dimensions or electrical limits before integration into production designs.
Selection Notes
Select this component when designing circuits requiring unidirectional TVS protection in space-constrained environments. Ensure the operating voltage does not exceed the 12 V reverse standoff rating. Verify that the expected transient energy levels remain within the 24 W peak pulse power capability defined in the technical specifications.
Part Context
This device is part of the MMBZ A series from onsemi, which focuses on low-capacitance ESD protection solutions. The series utilizes advanced silicon technology to achieve fast response times while maintaining a small footprint suitable for high-density printed circuit board layouts in modern electronic assemblies.
Replacement Considerations
Consult official cross-reference lists for verified substitutes. Ensure any alternative maintains identical pinout, voltage ratings, and package dimensions to guarantee compatibility without redesigning the host circuit board.
