MMBZ6V2ALFHT116 Equivalent & Substitute Parts

Part Overview

The MMBZ6V2ALFHT116 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Rohm Semiconductor, designed for surface mount applications in automotive-grade circuits. This component provides transient overvoltage protection with a 3V reverse standoff voltage and 8.7V maximum clamping voltage. The part is currently active in production with full AEC-Q101 automotive qualification and ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

MMBZ6V2ALFHT116

Rohm SemiconductorIn Stock: 1208MMBZ6V2ALFHT116 Datasheet

Current PartRFQ

MMBZ6V2ALYFHT116

Rohm SemiconductorIn Stock: 3717MMBZ6V2ALYFHT116 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMBZ6V2ALFHT116 is determined by the following critical parameters:

• Voltage - Reverse Standoff: 3V (Max)
• Voltage - Breakdown (Min): 5.89V
• Voltage - Clamping (Max) @ Ipp: 8.7V
• Current - Peak Pulse (10/1000µs): 2.76A
• Power - Peak Pulse: 24W
• Operating Temperature: 150°C (TJ)
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount
• Grade: Automotive
• Qualification: AEC-Q101

The MMBZ6V2ALYFHT116 qualifies as a substitute part because it maintains identical electrical performance across all critical voltage and current parameters, operates within the same temperature range, carries the same automotive grade and AEC-Q101 qualification, and is compatible with the same surface mount package family. The primary difference is the unidirectional channel configuration (1 vs. 2 channels) and packaging format (SSD3 vs. SOT-23), which do not affect substitution eligibility when circuit topology permits dual-channel operation.

Parameter Comparison

Engineering Selection Recommendations

Both the MMBZ6V2ALFHT116 and MMBZ6V2ALYFHT116 are qualified for use in automotive applications under AEC-Q101 standards. Selection between these parts should be based on circuit requirements and packaging constraints:

The MMBZ6V2ALFHT116 (SSD3 package) is suitable for single-line protection applications requiring a unidirectional TVS diode configuration. The MMBZ6V2ALYFHT116 (SOT-23 package) provides dual-channel protection with a common anode configuration, making it applicable to circuits requiring protection on two independent signal lines or differential pair protection. Both parts maintain identical electrical performance specifications and automotive compliance certifications. Component selection should account for printed circuit board layout requirements, available footprint space, and circuit topology demands.

Frequently Asked Questions (FAQ)

Q: Can MMBZ6V2ALYFHT116 directly replace MMBZ6V2ALFHT116 in all applications?

A: Direct replacement is possible only when circuit topology permits dual-channel operation. The MMBZ6V2ALYFHT116 contains two protection channels with a common anode, whereas the MMBZ6V2ALFHT116 is a single unidirectional device. Verify that your circuit design can accommodate the dual-channel configuration before substitution.

Q: Are there differences in electrical performance between these parts?

A: No. Both parts maintain identical voltage ratings (3V reverse standoff, 5.89V breakdown minimum, 8.7V clamping maximum), current handling (2.76A peak pulse), power dissipation (24W peak pulse), and operating temperature range (150°C junction temperature).

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the MMBZ6V2ALFHT116 and MMBZ6V2ALYFHT116 carry AEC-Q101 automotive qualification and are classified as automotive-grade components. Both are ROHS3 compliant and REACH unaffected.

Q: What is the primary difference between these substitute parts?

A: The primary differences are the channel configuration (unidirectional vs. dual-channel) and the supplier device package designation (SSD3 vs. SOT-23). Both use compatible surface mount package families (TO-236-3, SC-59, SOT-23-3) and maintain the same physical footprint compatibility.

Q: Are there inventory or lead time considerations for these parts?

A: The MMBZ6V2ALFHT116 has 1123 pieces in stock, while the MMBZ6V2ALYFHT116 has 3637 pieces available. Both parts are active in production with no known supply constraints.