MMBZ9V1ALFHT116 Equivalent & Substitute Parts

Part Overview

The MMBZ9V1ALFHT116 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 6V reverse standoff voltage and 14V maximum clamping voltage. The part is currently in active production status with 1089 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for design flexibility, inventory management, or supply chain optimization.

Substiute Parts

MMBZ9V1ALFHT116

Rohm SemiconductorIn Stock: 1198MMBZ9V1ALFHT116 Datasheet

Current PartRFQ

MMBZ9V1ALYFHT116

Rohm SemiconductorIn Stock: 3312MMBZ9V1ALYFHT116 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMBZ9V1ALFHT116 is determined by the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 6V (Max)
• Voltage - Breakdown (Min): 8.65V
• Voltage - Clamping (Max) @ Ipp: 14V
• Current - Peak Pulse (10/1000µs): 1.7A
• Power - Peak Pulse: 24W
• Type: Zener
• Operating Temperature: 150°C (TJ)

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Grade: Automotive
• Qualification: AEC-Q101

The MMBZ9V1ALYFHT116 qualifies as a substitute part because it maintains identical electrical performance specifications across all critical voltage, current, and power parameters. Both parts are manufactured by Rohm Semiconductor, share automotive-grade qualification (AEC-Q101), and are housed in compatible surface mount packages. The primary difference is the unidirectional channel configuration (1 channel vs. 2 channels) and packaging format (SSD3 vs. SOT-23), which do not affect substitution eligibility when the application circuit topology accommodates the dual-channel architecture.

Parameter Comparison

Engineering Selection Recommendations

Both the MMBZ9V1ALFHT116 and MMBZ9V1ALYFHT116 maintain active production status and carry full automotive-grade qualification (AEC-Q101). Selection between these parts should be based on circuit topology requirements and inventory availability. The MMBZ9V1ALFHT116 provides single-channel protection in SSD3 packaging, while the MMBZ9V1ALYFHT116 offers dual-channel protection in SOT-23 packaging with higher inventory availability (3300 units vs. 1089 units). Both parts are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), suitable for automotive applications requiring transient overvoltage suppression at 6V standoff voltage with 14V clamping performance.

Frequently Asked Questions (FAQ)

Q: What determines if MMBZ9V1ALYFHT116 can substitute for MMBZ9V1ALFHT116?

A: Substitution is valid when the following parameters match: Voltage - Reverse Standoff (6V Max), Voltage - Breakdown (8.65V Min), Voltage - Clamping (14V Max @ Ipp), Current - Peak Pulse (1.7A), Power - Peak Pulse (24W), Operating Temperature (150°C TJ), Mounting Type (Surface Mount), Package compatibility (TO-236-3, SC-59, SOT-23-3), and automotive qualification (AEC-Q101). Both parts meet these criteria.

Q: Are there package differences between these parts?

A: The MMBZ9V1ALFHT116 uses SSD3 packaging, while the MMBZ9V1ALYFHT116 uses SOT-23 packaging. Both are surface mount packages within the TO-236-3, SC-59, SOT-23-3 family and are mechanically compatible for board-level integration.

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

A: The MMBZ9V1ALFHT116 is a unidirectional TVS diode (1 channel), while the MMBZ9V1ALYFHT116 is a dual-channel configuration with anode common. Circuit topology must accommodate the dual-channel architecture for substitution.

Q: Do both parts carry the same automotive qualification?

A: Yes. Both parts are AEC-Q101 qualified and automotive-grade, meeting identical reliability and qualification standards for automotive applications.

Q: Which part has better inventory availability?

A: The MMBZ9V1ALYFHT116 has 3300 units in stock compared to 1089 units for the MMBZ9V1ALFHT116, providing greater supply chain flexibility.