MMBZ33VALFHT116 Equivalent & Substitute Parts

Part Overview

The MMBZ33VALFHT116 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 26V reverse standoff voltage and 46V maximum clamping voltage. The part is currently in active production status with 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 specific packaging requirements.

Substiute Parts

MMBZ33VALFHT116

Rohm SemiconductorIn Stock: 994MMBZ33VALFHT116 Datasheet

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MMBZ33VALYFHT116

Rohm SemiconductorIn Stock: 6849MMBZ33VALYFHT116 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The MMBZ33VALYFHT116 qualifies as a direct substitute for the MMBZ33VALFHT116 based on the following critical parameters:

Electrical Equivalence:

• Identical reverse standoff voltage: 26V (Max)
• Identical breakdown voltage minimum: 31.35V
• Identical clamping voltage maximum: 46V
• Identical peak pulse current: 870mA
• Identical peak pulse power: 40W

Mechanical & Compliance Equivalence:

• Same manufacturer: Rohm Semiconductor
• Same mounting type: Surface Mount
• Same package classification: TO-236-3, SC-59, SOT-23-3
• Same operating temperature rating: 150°C (TJ)
• Same automotive grade and AEC-Q101 qualification
• Same RoHS3 compliance status
• Same MSL rating: 1 (Unlimited)

Distinction: The MMBZ33VALYFHT116 features dual unidirectional channels (2 channels) compared to the single channel (1 channel) configuration of the MMBZ33VALFHT116. This difference affects circuit topology requirements and pin configuration but does not alter the fundamental electrical protection characteristics per channel.

Parameter Comparison

Engineering Selection Recommendations

Both the MMBZ33VALFHT116 and MMBZ33VALYFHT116 maintain active production status with identical automotive-grade certification (AEC-Q101) and ROHS3 compliance. Selection between these parts depends on circuit topology requirements:

The MMBZ33VALFHT116 (single channel) is appropriate for applications requiring protection on a single signal line or power rail. The MMBZ33VALYFHT116 (dual channel) is suitable for circuits requiring simultaneous protection on two independent signal paths within a single package footprint. Both parts deliver equivalent electrical protection performance with identical voltage and current ratings. Substitution is valid when circuit design accommodates the channel configuration difference and PCB layout supports the selected package variant.

Frequently Asked Questions (FAQ)

Q: Can the MMBZ33VALYFHT116 replace the MMBZ33VALFHT116 in any application?

A: Substitution is valid only when the circuit design accommodates the dual-channel configuration of the MMBZ33VALYFHT116. The single-channel MMBZ33VALFHT116 cannot be directly replaced by the dual-channel variant without circuit topology review. Verify that the PCB layout and schematic support the alternative channel configuration.

Q: Are the electrical protection characteristics identical between these parts?

A: Yes. Both parts provide identical reverse standoff voltage (26V), breakdown voltage (31.35V minimum), clamping voltage (46V maximum), peak pulse current (870mA), and peak pulse power (40W). The difference lies in channel count, not protection performance per channel.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the MMBZ33VALFHT116 and MMBZ33VALYFHT116 carry AEC-Q101 automotive qualification and are ROHS3 compliant. Both are rated for 150°C junction temperature operation and maintain MSL 1 (Unlimited) moisture sensitivity classification.

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

A: The MMBZ33VALFHT116 features a single unidirectional channel, while the MMBZ33VALYFHT116 features two unidirectional channels. This affects pin configuration and circuit topology but not the electrical protection characteristics per channel.

Q: Are there packaging differences between these parts?

A: Both parts use identical package classifications (TO-236-3, SC-59, SOT-23-3) and surface mount mounting type. The MMBZ33VALYFHT116 is supplied in Tape & Reel (TR) packaging, while the MMBZ33VALFHT116 packaging format is not specified in the provided data.