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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 12V SOT-23-3
- Series：MMBZxxxALT1G
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：12 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：-
- Current - Reverse Leakage @ Vr：200 nA @ 8.5 V
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- 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 MMBZ12VALT1G is a dual monolithic silicon Zener transient voltage suppressor in an SOT-23 package. It features a common anode configuration to protect two separate lines within a single component. The device provides a nominal breakdown voltage of 12 V with a maximum clamping voltage of 7.5 V at a peak pulse current of 5.35 A. It handles a peak power dissipation of 40 W for a 1.0 ms pulse duration and operates within a junction temperature range of -55 °C to +150 °C.
Feature Summary
- Dual junction common anode design enables protection of two independent signal lines using a single surface-mount package.
- High surge capability with 40 W peak power rating for unidirectional configurations under specified pulse conditions.
- Robust electrostatic discharge protection rated at Class 3B (>16 kV) per the Human Body Model and Level 4 (±30 kV) contact discharge per IEC61000-4-2.
Applications
- Computer interface protection circuits
- Microprocessor data and address bus protection
- I/O port ESD suppression
Procurement Notes
Verify the specific ordering suffix when sourcing components, as variations exist between standard tape and reel packaging options. Confirm that the received parts match the required electrical characteristics and package style defined in the official datasheet before integration into production assemblies.
Selection Notes
Select this component for applications requiring dual-line transient protection where board space is limited. Ensure the working peak reverse voltage exceeds the maximum operating voltage of the protected lines while maintaining compatibility with the system's noise immunity requirements.
Part Context
This part belongs to the MMBZxxxALT1G series of dual common anode Zener diodes manufactured by onsemi. The series utilizes a void-free, transfer-molded thermosetting plastic case designed for automated assembly and high-density PCB layouts.
Replacement Considerations
MMBZ12VALT1G
FAQ
What is the pin configuration for the MMBZ12VALT1G?
Pin 1 is Cathode 1, Pin 2 is Cathode 2, and Pin 3 is the common Anode.
Does the MMBZ12VALT1G support bidirectional operation?
Yes, the device can be configured as a single bidirectional unit or two separate unidirectional units depending on circuit connections.
