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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 5.6V SOT-23-3
- Series：SZMMBZxxxALT1G
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：5.6 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：-
- Current - Reverse Leakage @ Vr：50 nA @ 38 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 SZMMBZ47VTALT1G is a bidirectional 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 terminals. The device features a maximum reverse standoff voltage of 22V and a minimum breakdown voltage of 25.65V at a test current of 1mA. It provides a peak pulse power dissipation of 40W under specified conditions, with a corresponding clamping voltage of 40V. The component supports a maximum peak pulse current of 1A and operates within a temperature range from -55°C to +150°C.
Feature Summary
- Bidirectional configuration for protecting differential signal lines against electrostatic discharge and transient voltage events.
- Compact SOT-23 surface-mount design optimized for high-density printed circuit board layouts.
- High peak pulse power handling capability suitable for robust transient protection applications.
Applications
- Electrostatic discharge protection for data and signal lines in portable electronic devices.
- Transient voltage suppression in automotive electronics requiring AEC-Q101 qualification.
- Protection interfaces for high-speed communication ports susceptible to electrical overstress.
Procurement Notes
Verify the specific ordering suffix to ensure the correct tape and reel configuration matches assembly requirements. Confirm that the bidirectional variant aligns with the circuit's polarity needs. Cross-reference the manufacturer's latest datasheet revision to validate updated electrical characteristics before finalizing procurement specifications.
Selection Notes
Select this component when bidirectional protection is required for low-voltage signal lines. Ensure the operating voltage remains below the 22V standoff rating to minimize leakage current. Verify that the 40W peak pulse power rating exceeds the expected energy levels of potential transient events in the target application environment.
Part Context
This part belongs to the MMBZ A series of TVS diodes from onsemi, designed for compact surface-mount applications. The series offers various voltage ratings within the SOT-23 package form factor. The 'SZ' prefix typically denotes specific automotive or enhanced reliability variants within the manufacturer's portfolio.
Replacement Considerations
Direct replacements must match the bidirectional configuration, SOT-23 package, and similar electrical parameters including Vwm, Vbr, and Pppm. Verify pinout compatibility and thermal performance characteristics before substituting with components from other manufacturers.
