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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 9.1V SOT-23-3
- Series：MMBZxxxALT1G
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：9.1 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：-
- Current - Reverse Leakage @ Vr：500 nA @ 6 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 MMBZ9V1ALT1G is a dual common-anode Transient Voltage Suppressor (TVS) diode manufactured by onsemi, housed in an SOT-23 (TO-236AB) surface-mount package. It features a reverse standoff voltage of 8.2 V and a breakdown voltage range of 9.05 V to 9.95 V at 1 mA test current. The device provides a maximum clamping voltage of 14 V at a peak pulse current of 1.7 A, with a peak pulse power dissipation rating of 225 mW. It offers low capacitance of 10 pF for high-speed data line protection and operates within a junction temperature range of -55°C to +150°C.
Feature Summary
- Dual common-anode configuration integrates two unidirectional TVS diodes into a single compact component.
- Low parasitic capacitance supports signal integrity preservation in high-speed digital interfaces.
- Robust transient suppression capability protects sensitive semiconductor junctions from electrostatic discharge events.
Applications
- Protection of universal serial bus (USB) data lines against electrostatic discharge.
- Guarding high-speed interface ports such as HDMI or DisplayPort from voltage spikes.
- Surge protection for general-purpose input/output pins on microcontrollers.
Procurement Notes
Verify the complete part number including the 'G' suffix to ensure compliance with lead-free manufacturing standards and RoHS directives. Confirm the specific tape-and-reel quantity matches the production requirements. Check for recent product change notifications regarding packaging or material composition updates before finalizing procurement orders.
Selection Notes
Select this component when a dual-channel protection scheme is required for common-anode configurations. Ensure the reverse standoff voltage exceeds the operating voltage of the protected circuit while maintaining a clamping voltage below the tolerance limit of the downstream components. Verify that the package footprint aligns with the printed circuit board layout constraints.
Part Context
This device belongs to the MMBZ A series of TVS diodes designed for surface-mount applications. It serves as a specialized solution for protecting multiple lines within a confined space, offering higher integration density compared to discrete single-diode implementations. The series is engineered for reliability in consumer electronics and telecommunications equipment.
Replacement Considerations
Direct replacements include the MMBZ9V1A and MMBZ9V1ALT1 variants. Verify pinout compatibility and electrical parameter equivalence, specifically the clamping voltage and capacitance values, before substituting these parts in existing designs.
FAQ
What is the maximum peak pulse current the MMBZ9V1ALT1G can handle?
The device is rated for a maximum peak pulse current of 1.7 A under specified pulse conditions.
Does the MMBZ9V1ALT1G support bidirectional protection?
No, the MMBZ9V1ALT1G is configured as a dual common-anode unidirectional TVS diode array.
What is the typical capacitance value of this component?
The typical capacitance is 10 pF, which helps maintain signal integrity in high-speed applications.
