MMBZ15VALFHT116 Equivalent & Substitute Parts

Part Overview

The MMBZ15VALFHT116 is a transient voltage suppressor (TVS) diode manufactured by Rohm Semiconductor, designed for surface mount applications in automotive-grade circuits. This dual-channel Zener diode provides 12V reverse standoff voltage with 21V maximum clamping voltage and 1.9A peak pulse current capability. The part is actively produced and maintains AEC-Q101 automotive qualification with ROHS3 compliance. Substitute parts are identified when electrical characteristics, mechanical compatibility, and qualification standards remain equivalent across packaging variations.

Substiute Parts

MMBZ15VALFHT116

Rohm SemiconductorIn Stock: 1011MMBZ15VALFHT116 Datasheet

Current PartRFQ

MMBZ15VALYFHT116

Rohm SemiconductorIn Stock: 3177MMBZ15VALYFHT116 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMBZ15VALFHT116 is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 12V (Max)
• Voltage - Breakdown (Min): 14.25V
• Voltage - Clamping (Max) @ Ipp: 21V
• Current - Peak Pulse (10/1000µs): 1.9A
• Power - Peak Pulse: 40W
• Unidirectional Channels: 2
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount
• Grade: Automotive
• Qualification: AEC-Q101

The MMBZ15VALYFHT116 qualifies as a direct substitute based on identical electrical specifications and automotive qualification. The difference between these parts is limited to packaging format: the main part uses Cut Tape (CT) while the substitute uses Tape & Reel (TR) format. Both maintain the same SOT-23-3 package footprint and electrical performance.

Parameter Comparison

Engineering Selection Recommendations

Both the MMBZ15VALFHT116 and MMBZ15VALYFHT116 are qualified for direct substitution in automotive applications. Selection between these parts should be based on supply chain requirements and packaging format availability:

• MMBZ15VALFHT116 (Cut Tape): Suitable for lower-volume applications or manual assembly processes where individual component handling is required.
• MMBZ15VALYFHT116 (Tape & Reel): Optimized for high-volume automated assembly operations where reel-based component feeding is standard.

Both parts maintain identical electrical performance, thermal characteristics, and automotive-grade AEC-Q101 qualification. No functional differences exist between these variants. Selection criteria should be driven by manufacturing process requirements and inventory management practices rather than technical performance considerations.

Frequently Asked Questions (FAQ)

Q: Can MMBZ15VALYFHT116 replace MMBZ15VALFHT116 in existing designs?

A: Yes. Both parts are electrically identical with matching voltage ratings (12V reverse standoff, 21V clamping), current handling (1.9A peak pulse), and package footprint (SOT-23-3). The only difference is packaging format (Cut Tape versus Tape & Reel). No circuit modifications are required.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging provides individual components cut from a continuous tape, suitable for manual handling and lower-volume assembly. Tape & Reel (TR) packaging maintains components on a continuous reel for automated pick-and-place equipment. Both formats use identical SOT-23-3 component geometry and are mechanically compatible with standard surface mount assembly processes.

Q: Are both parts automotive-qualified?

A: Yes. Both MMBZ15VALFHT116 and MMBZ15VALYFHT116 carry AEC-Q101 automotive qualification and maintain Automotive grade classification. Both are ROHS3 compliant and REACH unaffected.

Q: What are the critical electrical parameters for substitution?

A: Substitution is valid when the following parameters match: Voltage - Reverse Standoff (12V Max), Voltage - Breakdown (14.25V Min), Voltage - Clamping (21V Max @ Ipp), Current - Peak Pulse (1.9A), Power - Peak Pulse (40W), and dual-channel configuration. Both listed parts meet these criteria.

Q: Can these parts be used interchangeably in high-volume production?

A: Yes, provided your assembly process supports the packaging format. If your production line uses automated reel-fed equipment, MMBZ15VALYFHT116 (Tape & Reel) is the appropriate choice. If manual or cut-tape feeding is used, MMBZ15VALFHT116 (Cut Tape) is suitable. Electrical performance and reliability are equivalent.